Capital Weather Gang - The inside scoop on D.C., Maryland and Virginia weather and beyond from PostWeather

Posted at 07:22 PM ET, 07/31/2012

Rainbow and lightning near Washington Dulles airport

By Jason Samenow

Reader John Kosak photographed a bolt of lightning beneath a vibrant rainbow close to Dulles Airport Tuesday evening.

By Jason Samenow | 07:22 PM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Latest, Photography, Thunderstorms

Posted at 05:00 PM ET, 07/31/2012

PM Update: Warm with scattered showers and storms

By Jason Samenow

The weather we’ve experienced today is likely a preview of what we’ll get tomorrow. By and large it’s dry and seasonably warm, but - with little notice - showers and thunderstorms pop-up during the favored late afternoon and evening hours. These storms won’t provide meaningful, drought-denting rain, but we’ll take what we can get.

By Jason Samenow | 05:00 PM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:01 PM ET, 07/31/2012

2012: the year of the anti- D.C. split

By Jason Samenow

In past years, some veteran weather watchers have noted a so-called, D.C. split phenomenon - when rain showers approaching the city part, leaving the city high and dry.

By Jason Samenow | 04:01 PM ET, 07/31/2012 | Permalink | Comments ( 0)

Posted at 02:42 PM ET, 07/31/2012

More evidence attention-grabbing climate studies prematurely rushed and potentially flawed

By Jason Samenow

New information has emerged suggestive of potential problems with the recent climate work by Richard Muller and Anthony Watts reinforcing the pitfalls in accepting their conclusions and further implicating them in scientifically questionable publicity stunts.

By Jason Samenow | 02:42 PM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change

Posted at 10:47 AM ET, 07/31/2012

Which July in Washington, D.C. felt hotter: 2011 or 2012?

By Justin Grieser

Barring an apocalyptic freeze tonight, July 2012 should end up D.C.’s all-time second hottest month on record. Last July was a hair hotter. Did it feel that way to you?

By Justin Grieser | 10:47 AM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat, Local Climate

Posted at 05:00 AM ET, 07/31/2012

Forecast: Mixed skies with 80s for highs, storm chances stick around

By Matt Rogers

Even though August is the second-hottest month of the year, our normal temperatures are starting their ever-so-gradual stepping down toward autumn now. At least for the next few days, we are treated to some less hot conditions along with a storm risk. The next surge of heat from the mid-continent “Dome of Drought" arrives Friday and especially this weekend. This results in a reduced thunderstorm risk, but temperatures in the low-to-mid 90s.

By Matt Rogers | 05:00 AM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/31/2012

NatCast: Warm with a slight storm risk

By Matt Rogers

Temperatures lingering in the 80s with partly cloudy skies and just a risk of thunderstorm (more likely not).

By Matt Rogers | 04:55 AM ET, 07/31/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 04:15 PM ET, 07/30/2012

PM Update: A few showers into the evening; more warmth and rain chances Tuesday

By Ian Livingston

It was a fairly typical summer day around here, at least as far as temperatures go, with highs in the mid-80s to near 90. Humidity remains moderate to high, but below unbearable levels. An easterly wind off the ocean has at least brought us some cleaner skies than we might otherwise expect this time of year. Isolated to scattered showers, and maybe a storm, continue to decrease into the evening.

By Ian Livingston | 04:15 PM ET, 07/30/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 01:25 PM ET, 07/30/2012

Clear views of thunderstorm clouds and rainbows

By Kevin Ambrose

This past weekend offered some beautiful views of thunderstorms and rainbows with clear skies and good visibility.

By Kevin Ambrose | 01:25 PM ET, 07/30/2012 | Permalink | Comments ( 0)
Categories: Photography, Latest, Thunderstorms

Posted at 10:15 AM ET, 07/30/2012

So-called blockbuster climate change studies prove little

By Jason Samenow

High-profile climate change studies released by Richard Muller and Anthony Watts over the weekend represent concerted efforts to influence public perception about what we know about climate science. But neither have been published in a peer-reviewed publication and there is cause to question their legitimacy.

By Jason Samenow | 10:15 AM ET, 07/30/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change

Posted at 05:00 AM ET, 07/30/2012

Forecast: Warm through midweek with storm chances, hot by the weekend

By Jason Samenow

The week ahead is neither a washout nor scorching hot. But rather, it’s something in between. The typical day features highs near 90 and the opportunity for afternoon and evening storms though some days top out as low as the mid-80s or as high as the mid-90s. Tuesday and Wednesday may be the wettest and coolest days while the weekend brings the heat.

By Jason Samenow | 05:00 AM ET, 07/30/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:00 AM ET, 07/29/2012

D.C. area forecast: Settling into an unsettled summer pattern

By Brian Jackson

As we near the Dog Days of summer, we find ourselves heading into a typical summertime pattern the next several days with warm and somewhat humid conditions along with fairly regular chances for afternoon storms. Lucky for us, most of that holds off until tomorrow with a little less humidity and lower storm chances making for a pretty nice close to the weekend.

By Brian Jackson | 05:00 AM ET, 07/29/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 01:53 PM ET, 07/28/2012

Severe storm risk ends; mild overnight, mostly sunny Sunday

By Dan Stillman

A Severe Thunderstorm Watch has been issued for the entire Washington-Baltimore area until 10 p.m.

By Dan Stillman | 01:53 PM ET, 07/28/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 05:00 AM ET, 07/28/2012

D.C. area forecast: High heat wanes, but regular summertime conditions remain

By Ian Livingston

We’re staring down day 20 of 90-degree or higher temperatures in this scorching July, so hopefully we can appreciate the cooler heat that’s taking over in the coming period. Storm chances are around off and on as well, with seemingly a better chance today compared to tomorrow, but no real washouts anywhere to be seen for now. The dog days last a while longer, but it could be worse, as we know all too well.

By Ian Livingston | 05:00 AM ET, 07/28/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:59 AM ET, 07/28/2012

United vs. Saint-Germain weather forecast: Weather possibly as friendly as the game

By Ian Livingston

Any shower or storm should not last long, and it’s sort of unlikely to see one to begin with. Toasty, but could be worse!

By Ian Livingston | 04:59 AM ET, 07/28/2012 | Permalink | Comments ( 0)
Categories: UnitedCast

Posted at 04:04 PM ET, 07/27/2012

PM Update: Heat relents, storm chances persist

By Dan Stillman

Despite the Heat Advisory issued for parts of the area today, what the D.C. area ended up with is a fairly normal hot July day. It’s one of the few days this summer that the heat has actually underachieved. Like yesterday, we’re on the look out for some showers and storms into this evening.

By Dan Stillman | 04:04 PM ET, 07/27/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 01:10 PM ET, 07/27/2012

More storms, more sunburn? Stronger storms could destroy ozone

By Justin Grieser

A study says stronger storms could damage the ozone layer over the U.S.

By Justin Grieser | 01:10 PM ET, 07/27/2012 | Permalink | Comments ( 0)
Categories: Climate Change, Thunderstorms, Latest

Posted at 10:45 AM ET, 07/27/2012

U.S. drought is bad but could be a lot worse

By Jason Samenow

As bad as the current drought is, both economic and climatic data indicate it pales in comparison to certain droughts in the recent and more distant past.

By Jason Samenow | 10:45 AM ET, 07/27/2012 | Permalink | Comments ( 0)
Categories: Latest, Droughts, U.S. Weather

Posted at 05:00 AM ET, 07/27/2012

D.C. area forecast: Hot again, with late-day storms possible; less hot this weekend

By A. Camden Walker

A cold front on the periphery of our HOT high pressure system approaches, adding an extra ingredient of instability to the air today. The question is: will it bring a trigger early enough for more numerous storms? Either way, records potentially in play today include 100 at National, 98 at Dulles, and 101 at BWI. As storms build and approach from the west, and if any severe weather watches are issued, stay tuned to us here, as we’ll be sure to keep you updated.

By A. Camden Walker | 05:00 AM ET, 07/27/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 11:00 PM ET, 07/26/2012

PM Update: More heat and storm chances Friday

By Ian Livingston

After morning clouds slowed temperature rises for a bit, the sun broke through and turned things toasty and pretty gross. Along with highs in the upper 90s to near 100, we’ve been unfortunate enough to have heat indices as high as 105 to 110. The major severe weather event ongoing to the north largely stayed there, but did skirt parts of the area.

By Ian Livingston | 11:00 PM ET, 07/26/2012 | Permalink | Comments ( 0)

Posted at 01:30 PM ET, 07/26/2012

Your favorite Knickerbocker snowstorm photo?

By Kevin Ambrose

I am currently working on a Knickerbocker Snowstorm book with Arcadia publishing for their “Images of America” series. I thought I’d poll the readers of the Capital Weather Gang to determine your favorite cover photo.

By Kevin Ambrose | 01:30 PM ET, 07/26/2012 | Permalink | Comments ( 0)
Categories: Winter Storms, Latest, Photography, History

Posted at 11:00 AM ET, 07/26/2012

Don’t fret, it’s getting cooler: August isn’t as persistently blazing as July

By Ian Livingston

While the “dog days” of summer continue well into August by most definitions, temperatures are on the decline with the year’s hottest month of July largely behind us. Sure, these cool facts might not always be apparent every single day, but by August’s end the idea that refreshing times are ahead is often starting to become noticeable.

By Ian Livingston | 11:00 AM ET, 07/26/2012 | Permalink | Comments ( 0)
Categories: Local Climate, Latest

Posted at 05:00 AM ET, 07/26/2012

D.C. area forecast: Can we hit 100 degrees for the 8th time this year?

By David Streit

I guess I am getting hardened to all this. The idea of a couple more days pushing close to 100 seems just par for the course. You all know the drill, drink lots of water, don’t over exert, etc. Dulles could take a swing at the record of 98 today, but D.C.’s 103 will be a little harder to make. Most of us are unlikely to see any storms until Friday.

By David Streit | 05:00 AM ET, 07/26/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:48 PM ET, 07/25/2012

PM Update: Heat advisory Thursday, risk of strong storms too

By Jason Samenow

The sweltering and potentially stormy weather pattern we’ve all come to know and love returns Thursday as the Midwest heat dome bleeds east. Meanwhile, a fast jet stream and cold front to the north may power strong to severe thunderstorms, especially north of town.

By Jason Samenow | 04:48 PM ET, 07/25/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 03:04 PM ET, 07/25/2012

Greenland ice sheet surface melt: massive meltdown or meaningless trickle?

By Jason Samenow

Since NASA announced the Greenland ice sheet recently experienced “unprecedented” ice sheet surface melt, countless news reports, commentaries and critiques have attempted to explain what it means. Considering the range of perspectives on this event, let’s try to synthesize them and perhaps get a weigh-in on the gravity of this meltdown.

By Jason Samenow | 03:04 PM ET, 07/25/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change

Posted at 11:33 AM ET, 07/25/2012

100 degrees Thursday: Blissful to brutal in 24 hours, behind the weather whiplash

By Jason Samenow

After suffocating humidity yesterday, a cold front kicked the offensive air mass out of town. Now we have delightful, fall-like dry air overhead - one of the more comfortable days in weeks. But by this evening, humidity starts trickling back in. And by Thursday morning, it’s a sauna once again. In the afternoon, temperatures surge to around the century mark. What’s going on?

By Jason Samenow | 11:33 AM ET, 07/25/2012 | Permalink | Comments ( 0)
Categories: Extreme Heat, Latest

Posted at 05:00 AM ET, 07/25/2012

D.C. area forecast: Beautiful today, burning hot tomorrow

By Dan Stillman

In a summer replete with extreme heat, high humidity and powerful storms, today serves as a welcome break from all three. Sure it’s still warm, but it is summer after all. And the low humidity and lack of storm risk are a nice change of pace. In-your-face heat and humidity returns in a big way tomorrow, then we transition back to average summer fare by the weekend

By Dan Stillman | 05:00 AM ET, 07/25/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 01:24 PM ET, 07/24/2012

Storms fading with most activity well south of D.C.; drier, cooler and sunny Wednesday

By Jason Samenow

The National Weather Service Storm Prediction Center has issued a severe thunderstorm watch for the entire region through 8 p.m. The watch covers a broad area stretching from southern Pennsylvania through southwest Virginia.

By Jason Samenow | 01:24 PM ET, 07/24/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 11:08 AM ET, 07/24/2012

Threat of severe thunderstorms today, highest risk south of D.C.

By Jason Samenow

When a cold front collides with a hot, juicy airmass over the Southeast and mid-Atlantic, strong to severe thunderstorms are possible today. There is the chance of a large, organized area of severe thunderstorms later today, though it *may* target areas just south of D.C. from central Virginia into the Carolinas.

By Jason Samenow | 11:08 AM ET, 07/24/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 05:00 AM ET, 07/24/2012

Forecast: Steamy and stormy, but a break tomorrow

By Matt Rogers

A cold front is planning an afternoon to early evening arrival. Its entourage includes clouds and scattered thunderstorms - some may be severe. A brief bit of cooler and much less humid weather follows the front Wednesday before yet another front - this time a warm front - lifts north through the area early Thursday. Very hot weather Thursday is followed by another cool front on Friday leading to a near seasonal weekend with perhaps more Saturday storms.

By Matt Rogers | 05:00 AM ET, 07/24/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:20 PM ET, 07/23/2012

PM Update: A few storms possible this evening; humid, with heavy storm chance Tuesday

By Ian Livingston

As with recent days, clouds came to our rescue to keep temperatures from reaching their warmest potential. But, unlike the last two days, temperatures still made it pretty high -- into the upper 80s to near 90. Thus far, showers and storms have largely stayed away other than a quick sprinkle in a few spots. But, we remain on guard for storms into the evening as they continue to move this direction from the west.

By Ian Livingston | 04:20 PM ET, 07/23/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 02:46 PM ET, 07/23/2012

Intense typhoon Vicente slamming Hong Kong

By Jason Samenow

After rapidly intensifying earlier today, typhoon Vicente is battering Hong Kong and locations in Southern China.

By Jason Samenow | 02:46 PM ET, 07/23/2012 | Permalink | Comments ( 0)
Categories: Latest, International Weather, Tropical Weather

Posted at 10:45 AM ET, 07/23/2012

London 2012 Summer Olympics weather: Recent rain concerns give way to sunny, drier conditions

By Justin Grieser

Following weeks of heavy rain and a dismal summer across Britain, the weather forecast for the opening ceremony of the London 2012 Olympics is showing signs of improvement. Warmth and sunshine are finally making an appearance in the UK as temperatures in the south of England climb past 77 degrees (25ºC) for the first time this month.

By Justin Grieser | 10:45 AM ET, 07/23/2012 | Permalink | Comments ( 0)
Categories: International Weather, Latest

Posted at 05:00 AM ET, 07/23/2012

D.C. area forecast: Hot, humid, sometimes stormy pattern returns

By Jason Samenow

After a short reprieve, the heat is back today. While conditions may cool briefly during the middle and end of the week, most days this week will be warmer than average. Meanwhile, an active jet stream to our north may generate thunderstorms several days this week, including today.

By Jason Samenow | 05:00 AM ET, 07/23/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:00 AM ET, 07/22/2012

D.C. area forecast: Summer pause doesn’t last for long

By A. Camden Walker

Have you enjoyed our break from the heat? Good, because it’s almost over. After today’s lingering clouds and still below-average temperatures, we’re back to at least a couple hot, humid and potentially stormy days. There’s hope that a cold front can break the heat and storm chances by Wednesday, but summertime cold fronts are hard to predict this far out.

By A. Camden Walker | 05:00 AM ET, 07/22/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/22/2012

Nationals vs. Braves weather forecast: Still cool enough for a comfortable game

By A. Camden Walker

Maybe a sprinkle but that’s about it for rain chances. One of the most comfortable July day games you’ll ever have around here.

By A. Camden Walker | 04:55 AM ET, 07/22/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 10:15 PM ET, 07/21/2012

Coolest July 21 high temperatures on record in Washington, D.C. and Baltimore

By Jason Samenow

The mist, the showers, and a persistent breeze from the Atlantic resulted in historically chilly afternoon temperatures in the Washington, D.C. and Baltimore regions.

By Jason Samenow | 10:15 PM ET, 07/21/2012 | Permalink | Comments ( 0)
Categories: Latest, Local Climate

Posted at 05:00 AM ET, 07/21/2012

D.C. area forecast: Cool with a few showers today; Heading back toward summer after

By Ian Livingston

Yesterday was the coolest day in D.C. since the 26th of June, and it’s even possible we could end up with a high in the 70s today. Quite a turnaround compared to the scorchers of recent weeks! As long as you don’t mind a lack of pure sunshine, today’s looking like a fairly good one to spend at least some time outside. Warmth begins to return tomorrow, and when we get into the workweek, it’s going to certainly feel like summer again as heat and storm threats build.

By Ian Livingston | 05:00 AM ET, 07/21/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/21/2012

Nationals vs. Braves weather forecast: A good day for a baseball marathon

By Ian Livingston

A doubleheader in July could be brutal around here. However, in this case plentiful clouds and a cold front to the south combine to create a day where being outside is a pleasure. Just a small shower threat here and there as well.

By Ian Livingston | 04:55 AM ET, 07/21/2012 | Permalink | Comments ( 0)
Categories: NatCast

Posted at 04:04 PM ET, 07/20/2012

PM Update: Showers, storms possible this evening; weekend a little unsettled

By Jason Samenow

Afternoon temperatures today were as cool as they’ve been in three weeks. We’ve shed the heat, but rain chances are tough to shake away due to the painfully slow movement of a front sinking south through region. Showers and storms chances are moderate-high tonight (especially late), low-moderate Saturday, and down but not out Sunday.

By Jason Samenow | 04:04 PM ET, 07/20/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:00 PM ET, 07/20/2012

Washington Nationals weather forecast: Showers/storms possible, but should get game in

By Jason Samenow

While there’s a chance of pop-up showers/storms that could delay the game, this game should be played and there’s a chance it will be dry throughout.

By Jason Samenow | 04:00 PM ET, 07/20/2012 | Permalink | Comments ( 0)

Posted at 02:28 PM ET, 07/20/2012

Bloomingdale, D.C.: Flooded three times in 10 days

By Jason Samenow

Talk about being snake-bit. In less than two weeks, the Bloomingdale neighborhood just northeast of downtown, Washington, D.C. has been inundated with flood waters three times.

By Jason Samenow | 02:28 PM ET, 07/20/2012 | Permalink | Comments ( 0)

Posted at 10:47 AM ET, 07/20/2012

Storms produce heavy rain, mainly in District to points north

By Jason Samenow

A strong line of summer storms swept throught the metro region Thursday night, dumping 0.5-2” of rain from the south side of the beltway through Howard county.

By Jason Samenow | 10:47 AM ET, 07/20/2012 | Permalink | Comments ( 0)
Categories: Latest, Local Climate, Thunderstorms

Posted at 05:00 AM ET, 07/20/2012

D.C. area forecast: Steamy with heavy showers and thunderstorms likely

By A. Camden Walker

Most of us actually should see rain today, but be warned localized amounts could be copious. Even though it’s been dry for most spots of late, flooding could be a concern. If driving, please remember “turn around, don’t drown.” Saturday—and especially Sunday—is our recompense, with a slight reduction in the heat and humidity. Isolated showers and storms by late weekend may become more widespread as the workweek begins, along with at least a small surge of heat. Drink that water!

By A. Camden Walker | 05:00 AM ET, 07/20/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/20/2012

Nationals vs. Braves weather forecast: Thunder may crack instead of bats

By A. Camden Walker

Hopefully muggy air doesn’t curtail our recent winnings, assuming the game gets played. We do have roving showers that could roll through and delay the game at least. Please take shelter if you hear thunder, under the concourse. Also if you get too warm, seek out a cooling room.

By A. Camden Walker | 04:55 AM ET, 07/20/2012 | Permalink | Comments ( 0)
Categories: NatCast

Posted at 04:09 PM ET, 07/19/2012

PM Update: Showers and storms likely tonight and Friday

By Jason Samenow

A slow,.and I mean slow moving front will sink south through the region between now and Saturday, bringing waves of showers and storms through the region. Persistent cloud cover means the probable end of 90-degree temperatures but plenty of humidity lingers.

By Jason Samenow | 04:09 PM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 02:20 PM ET, 07/19/2012

Dissecting a derecho bolt: more to lightning than meets the eye (and camera lens)

By Kevin Ambrose and Scott D. Rudlosky Ph.D.

Over a year ago, NOAA’s Scott Rudlosky and I began discussing an effort to match a lightning photograph with its corresponding lightning data recorded by the Washington D.C. Lightning Mapping Array (DCLMA).. We felt that we could learn more about the lightning that we see flashing across the sky by investigating the data behind the flash, such as where it originated, where it traveled, its elevation, and where it struck ground.

By Kevin Ambrose and Scott D. Rudlosky Ph.D. | 02:20 PM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Latest, Science, Thunderstorms, Photography

Posted at 11:58 AM ET, 07/19/2012

Drought expands into northern Virginia, continues in central and southern Maryland

By Jason Samenow

Washington, D.C. and its Virginia and Maryland suburbs are not immune from the drought conditions afflicting nearly two-thirds of the country. The latest U.S. Drought Monitor shows all but D.C.’s far north and northwest suburbs under moderate drought conditions.

By Jason Samenow | 11:58 AM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Droughts, Local Climate, Latest

Posted at 09:37 AM ET, 07/19/2012

Historic drought covers nearly two-thirds of continental U.S.

By Jason Samenow

The most extensive drought since the 1950s in the continental U.S. keeps getting worse. For the 10th consecutive week, drought conditions expanded.

By Jason Samenow | 09:37 AM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather, Droughts

Posted at 05:00 AM ET, 07/19/2012

D.C. area forecast: Thundery weather next two days brings end to strong heat

By David Streit

Today is still a sweat-fest and storms are likely to produce more downpours like yesterday. Good news for gardens and lawns, but you bike riders might want to be wary. Shower potential drops like a rock over the weekend as do the temperatues. Enjoy!

By David Streit | 05:00 AM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/19/2012

Nationals vs. Mets weather forecast: Roar of thunder possible, roar of crowd a given

By David Streit

Fortunately, the game could be over before the thundershowers really fire up, but a brief game delay is not out of the question. Some added clouds take an edge off heat, but it’s still soupy

By David Streit | 04:55 AM ET, 07/19/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 03:01 PM ET, 07/18/2012

More extreme heat milestones met as severe thunderstorms dot region

By Jason Samenow and Ian Livingston

Triple digit heat has once again baked the metro region. Meanwhile, a cold front closing in on the area is triggering widespread severe storms to our north and northwest. A severe thunderstorm watch is in effect through 11 p.m. Storms will contain heavy rain, dangerous lightning and the possibility of damaging winds to 70 mph..

By Jason Samenow and Ian Livingston | 03:01 PM ET, 07/18/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms, Extreme Heat

Posted at 11:51 AM ET, 07/18/2012

Severe storms target New York City, southern New England, a few could reach D.C. area late today

By Jason Samenow

A cold front sagging south from the Northeast this afternoon to the northern mid-Atlantic tonight - along with strong upper level winds - promises to trigger strong to severe thunderstorms across this area. A Severe Thunderstorm Watch has been issued for the D.C. area.

By Jason Samenow | 11:51 AM ET, 07/18/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather, Thunderstorms

Posted at 10:49 AM ET, 07/18/2012

Cool thoughts: awaiting an epic swim across Lake Michigan by local couple

By Don Lipman

In mid-August, at the 50-mile wide mid-point of Lake Michigan, a once-local couple now living in the Grand Rapids, MI area, will attempt a staggering 30-35 hour swim across the lake, one never before accomplished by a husband-wife team. Jeff Tow, who, as a youngster, swam competitively in Montgomery County, MD, and his wife Sara, have been preparing for this swim all their lives.

By Don Lipman | 10:49 AM ET, 07/18/2012 | Permalink | Comments ( 0)
Categories: Latest, Lipman, U.S. Weather

Posted at 05:00 AM ET, 07/18/2012

D.C. area forecast: Shooting for our 7th 100-degree day of the year

By Dan Stillman

The Dog Days of August are alive and well in mid-July. Yeah, we’re more used to this now than we were earlier in the summer. But it’s still hot and gross. The heat’s not quite as stifling tomorrow, and by Friday through the weekend we’re talking highs near to below average for a change. Today through at least Friday we may also have to dodge some showers and storms.

By Dan Stillman | 05:00 AM ET, 07/18/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/18/2012

Nationals vs Mets weather forecast: Definitely muggy; maybe stormy?

By Dan Stillman

A thunderstorm could very well come through but that’s not a sure thing. So pretty much a wait and see kind of deal.

By Dan Stillman | 04:55 AM ET, 07/18/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 04:34 PM ET, 07/17/2012

PM Update: Temperature hits 100, possible repeat Wednesday - heat advisory

By Jason Samenow

For the sixth time this summer, Washington, D.C. reached at least 100 degrees. We may tack on a 7th Wednesday, with higher humidity levels to boot. Late day thunderstorms herald the start of a gradual cooling trend Thursday.

By Jason Samenow | 04:34 PM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 03:17 PM ET, 07/17/2012

Ice island twice as big as Manhattan breaks off Greenland glacier

By Jason Samenow

A chunk of ice 46 square miles in area has parted from the Petermann glacier, which feeds into Nares straight along the northwest coast of Greenland.

By Jason Samenow | 03:17 PM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change

Posted at 02:53 PM ET, 07/17/2012

South Pole weather: 200 degrees of separation from Washington, D.C.’s scorching heat

By Jack Williams

With temperatures closing in on 100 Washington, D.C., today is a good day to dream of working at the South Pole. The high there today (Wednesday at the South Pole, which is on New Zealand time, 12 hours ahead of ET) should be -79 F, says Dale Herschlag, the meteorologist at the U.S. Amundsen-Scott South Pole Station.

By Jack Williams | 02:53 PM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Latest, Science, International Weather

Posted at 10:38 AM ET, 07/17/2012

Washington, D.C.: hottest location in nation

By Jason Samenow

Washington, D.C. - at 10 a.m. with a temperature of 90 - is hotter than any city on the Weather Channel’s national weather map. Its closest competition? Chicago at 89.

By Jason Samenow | 10:38 AM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat

Posted at 05:00 AM ET, 07/17/2012

D.C. area forecast: Maximum-melt, searing heat with relief starting Thursday

By Matt Rogers

As we enter the hottest hours of the current forecast period, it is important to point out that this one is not as strong or as long-lasting as what attacked us earlier this month. An imminent cool front is poised to sweep through our area tomorrow night and set the stage for a cooler/wetter pattern on Thursday and Friday.

By Matt Rogers | 05:00 AM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/17/2012

Nationals vs. NY Mets forecast: Misery meets the Mets

By Matt Rogers

Heat from the day is slow to recede in the evening hours, but no rain is anticipated at least.

By Matt Rogers | 04:55 AM ET, 07/17/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 04:35 PM ET, 07/16/2012

PM Update: A few showers or storms into evening; heat gets hotter tomorrow

By Ian Livingston

You probably know the story out there. It’s hot. It’s humid. And it’s going to get hotter. Today’s highs have mainly reached the mid-90s across the area. With dew points in the upper 60s to around 70, you can add on another 5-10 degrees of heat index. A few cooling showers and storms are now also dotting part of the region, and that should continue through about sunset. While most of these storms won’t be too intense, there’s a chance for some isolated strong winds given all the juice around.

By Ian Livingston | 04:35 PM ET, 07/16/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 03:28 PM ET, 07/16/2012

Worst drought since 1950s in continental U.S.

By Jason Samenow

It’s been more than 50 years since a drought this extensive has afflicted the Lower 48 states. That’s the conclusion of NOAA’s latest report on drought, released today.

By Jason Samenow | 03:28 PM ET, 07/16/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather, Droughts

Posted at 12:47 PM ET, 07/16/2012

Northern Hemisphere warmest on record, Arctic ice has biggest melt in June

By Jason Samenow

Globally, June was 4th warmest on record, NOAA announced today. And over the Northern Hemisphere, for the second consecutive month, temperatures were as warm as they’ve been in 133 years of records. Notably, the Arctic experienced its largest June sea ice loss since the start of satellite records in 1979.

By Jason Samenow | 12:47 PM ET, 07/16/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change

Posted at 10:20 AM ET, 07/16/2012

Solar storm sparks beautiful aurora (PHOTOS, VIDEO)

By Jason Samenow

After predictions ranging from minor to severe, the geomagnetic storm that struck Earth this weekend fell smack in the middle - at moderate intensity. The storm produced beautiful aurora shown in this post.

By Jason Samenow | 10:20 AM ET, 07/16/2012 | Permalink | Comments ( 0)
Categories: Latest, Astronomy, Space, Government

Posted at 05:00 AM ET, 07/16/2012

D.C. area forecast: Hot weather kicks into high gear, some late week relief

By Jason Samenow

Sunday started a string of what should be 4 straight days at or above 95. On the plus side, we won’t match the record-setting 11-day streak that ended the Sunday before. Late Wednesday into Thursday, a cold front is going to kick the hot, humid air out of town. Some gusty storms might rumble through around that time. It dries out by Friday and the weekend.

By Jason Samenow | 05:00 AM ET, 07/16/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:00 AM ET, 07/15/2012

D.C. area forecast: Some Sunday storms as heat builds heading into work week

By Brian Jackson

Hotter weather is on the way as we head into our next heat wave of the summer. Lucky for us, this one is a bit weaker and much shorter than the last. Nonetheless, highs could reach reach 90 or higher today through at least Wednesday, with temperatures well into the 90s Tuesday and maybe Wednesday, too. The best chances for showers and storms come this afternoon and Wednesday.

By Brian Jackson | 05:00 AM ET, 07/15/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:00 AM ET, 07/14/2012

D.C. area forecast: Sticky Saturday with shower chances, similar Sunday

By Jason Samenow

For the last several days, we’ve held the humidity at bay by-and-large. That all changes today as a warm front lifts through the region. Not only does this front bring the threat of showers and storms, but it introduces a very warm, sticky air mass that hangs around into the middle of next week.

By Jason Samenow | 05:00 AM ET, 07/14/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:35 PM ET, 07/13/2012

PM Update: Heating up with weekend storm chances

By Dan Stillman

For those still weather-wary from last week’s heat wave and the derecho before that, this weekend offers a sense of July normalcy. That still means it’ll be plenty warm and plenty humid with a chance of thunderstorms. But nothing we can’t deal with and even enjoy to some degree.

By Dan Stillman | 04:35 PM ET, 07/13/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 02:53 PM ET, 07/13/2012

Four day deluge, flooding in Houston, Texas - no more drought

By Jason Samenow

Since Tuesday, 5-15” of rain has fallen around Houston producing many instances of flooding.

By Jason Samenow | 02:53 PM ET, 07/13/2012 | Permalink | Comments ( 0)

Posted at 12:31 PM ET, 07/13/2012

Solar storm incoming: Federal agencies provide inconsistent, confusing information

By Jason Samenow

A geomagnetic storm is likely on Earth this weekend. NOAA predicts it will be minor, maybe moderate. NASA says it will be moderate to severe.

By Jason Samenow | 12:31 PM ET, 07/13/2012 | Permalink | Comments ( 0)
Categories: Latest, Astronomy, Space, Government

Posted at 09:59 AM ET, 07/13/2012

Wanted for wanton acts of garden destruction

By David Streit

From storms to pests, gardeners have recently felt nature’s wrath.

By David Streit | 09:59 AM ET, 07/13/2012 | Permalink | Comments ( 0)
Categories: Latest, Gardening

Posted at 05:00 AM ET, 07/13/2012

D.C. area forecast: Standard July conditions, and trending warmer

By A. Camden Walker

Before we worry about heat building next week, we still have to contend with sweaty warmth that brings with it the typical D.C. July haze and random storm threat. Any storms may be hard to pinpoint over the next few days, so stay tuned. You’ll probably want some cooling rain, but because storms may be heavy rain producers due to their slow forward motion, we’ll give you as much lead time as possible. Today should be largely or fully dry.

By A. Camden Walker | 05:00 AM ET, 07/13/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:04 PM ET, 07/12/2012

PM Update: Warm and dry to close out work week

By Jason Samenow

While the weather the last couple of days hasn’t exactly been refreshing, it hasn’t been oppressively hot either. It’s been about as average as it gets. Same deal on Friday before heat, humidity and storm chances return to our daily forecasts.

By Jason Samenow | 05:04 PM ET, 07/12/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 02:31 PM ET, 07/12/2012

Giant sunspot shoots out intense, X-class solar flare

By Jason Samenow

A massive sunspot region - known as 1520 - has unleashed a large solar flare. NOAA’s Space Weather Prediction Center says the flare is rated an X1. This type of flare is considered “strong” according to NOAA, and can cause a blackout of high frequency radio communication on the sunlit side of Earth for one to two hours.

By Jason Samenow | 02:31 PM ET, 07/12/2012 | Permalink | Comments ( 0)
Categories: Astronomy, Space, Latest

Posted at 11:19 AM ET, 07/12/2012

Worst drought in at least 12 years in continental U.S.

By Jason Samenow

Drought conditions now cover about 61 percent of the Lower 48, the most extensive in 12 years of records. Another 19 percent of the country is on the brink of drought. 80 percent of the country is classified as at least abnormally dry in the latest U.S. Drought Monitor.

By Jason Samenow | 11:19 AM ET, 07/12/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather

Posted at 05:00 AM ET, 07/12/2012

D.C. area forecast: Decent today with building humidity and storm risks for weekend

By Matt Rogers

Say “hi” to Mr. Bermuda High. After today’s relatively low humidity, seasonal temperatures, and partly sunny skies, our big neighbor to the east will be edging our way for a weekend visit. Last week’s big heat wave originated from a dry ridge of high pressure in the middle of the country. This new round starting this weekend into next week offers more traditional D.C,-style heat and humidity. That means fewer record-breaking temps, but more humidity and daily thunderstorm risks.

By Matt Rogers | 05:00 AM ET, 07/12/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:00 PM ET, 07/11/2012

PM Update: Warm with moderate humidity through tomorrow

By Ian Livingston

It’s been another day of very warm temperatures and moderate humidity, with highs reaching the upper 80s to near 90. Thus far, today’s shower and storm focus has remained northwest of the area, and most spots should stay dry around here during the next 24 hours. Besides that, it’s more of the same into tomorrow with clouds occasionally ruling the sky, but also plenty of clearer times as well.

By Ian Livingston | 05:00 PM ET, 07/11/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:11 PM ET, 07/11/2012

Derecho is one of 2012’s trending words

By Jason Samenow

After a blast of hurricane-force winds and power outages by the hundreds of thousands, suddenly the word “derecho” entered the vocabulary of Washingtonians and English speakers all over the world. On Tuesday, the Global Language Monitor, in its mid-year update of 2012’s trending words, announced “derecho” had burst into the top 10,

By Jason Samenow | 04:11 PM ET, 07/11/2012 | Permalink | Comments ( 0)

Posted at 01:16 PM ET, 07/11/2012

Are we ready yet for potentially disastrous impacts of space weather?

By Steve Tracton

What if the sun triggered a geomagnetic storm of historic proportions? Would we be ready?

By Steve Tracton | 01:16 PM ET, 07/11/2012 | Permalink | Comments ( 0)
Categories: Latest, Space, Tracton

Posted at 10:33 AM ET, 07/11/2012

Heavy downpours of July 10: flooding in Bloomingdale, D.C.

By Jason Samenow

A weak area of low pressure passed over the D.C. area yesterday evening. As the atmosphere was flush with moisture, a very localized, but intense band of thundershowers developed between central Fairfax county and north central Prince George’s county. Torrential rain accompanied the thundershowers - with the heaviest rain falling in the heart of the District of Columbia.

By Jason Samenow | 10:33 AM ET, 07/11/2012 | Permalink | Comments ( 0)
Categories: Latest, Floods, Local Climate

Posted at 05:00 AM ET, 07/11/2012

D.C. area forecast: Average July heat never felt so good

By Dan Stillman

The midday sun is still hot and the humidity is still noticeable. But man has it been a joy to be outside the past couple days compared to last week, that is unless you got caught in last evening’s gully washer near and inside the Beltway. Typical July weather continues the next several days with the best chance of showers and thunderstorms waiting for the weekend.

By Dan Stillman | 05:00 AM ET, 07/11/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 05:23 PM ET, 07/10/2012

PM Update: Scattered showers this evening, drying out Wednesday

By Jason Samenow

Our break from 90-degree temperatures yesterday lasted all of one day. For the 12th time in 13 days, we reached at least 90 today. The humidity was also up there and a few showers have popped up this afternoon/evening. Those will fade overnight and drier air filters in for Wednesday.

By Jason Samenow | 05:23 PM ET, 07/10/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:31 PM ET, 07/10/2012

How statistically unusual was the heat wave?

By Jason Samenow

For some commentators, the recent heat wave signified nothing - other than a few extra drops of sweat. But the numbers reveal this heat wave was a rare event.

By Jason Samenow | 04:31 PM ET, 07/10/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather, Climate Change, Local Climate

Posted at 01:18 PM ET, 07/10/2012

NOAA scientist: 80 percent chance recent heat records due to climate change

By Jason Samenow

Is climate change giving our weather just a little nudge to make setting heat records vastly more probable? That’s the opinion of one NOAA scientist.

By Jason Samenow | 01:18 PM ET, 07/10/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change, Extreme Heat

Posted at 10:30 AM ET, 07/10/2012

June recap: volatile temperatures with a hot finale

By Matt Rogers

June was an excessively volatile month with a menagerie of meteorological conditions. We experienced some very cool and comfortable days contrasted against the hottest summer has to offer.

By Matt Rogers | 10:30 AM ET, 07/10/2012 | Permalink | Comments ( 0)
Categories: Latest, Local Climate

Posted at 05:00 AM ET, 07/10/2012

D.C. area forecast: Some clouds, some showers/storms, and highs in the 80s

By Matt Rogers

This new cooler pattern continues through this week with occasional bouts of cloudiness and shower/storm chances. For the most part, our high temperatures run near to below normal, while low temperatures hold near normal or are sometimes slightly higher. The weekend starts to get a bit hotter and more humid, but nothing like last weekend with upper 80s to low 90s and more thunderstorm chances.

By Matt Rogers | 05:00 AM ET, 07/10/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 PM ET, 07/09/2012

PM Update: A few showers possible overnight, and more 80s tomorrow

By Ian Livingston

For the first time in ages, it’s not 95 degrees or higher this afternoon! On a day like this, it’s hard to even care that it’s still rather humid out there. Highs are ranging from the low-to-mid 80s this afternoon and most spots have been dry since late morning. As far as rain of consequence, that should largely tend to remain south, but we might have to dodge a few showers from time to time.

By Ian Livingston | 04:55 PM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:34 PM ET, 07/09/2012

Warmest period in U.S. records carries on

By Jason Samenow

The first half of 2012 was the warmest in 118 years of records in the Lower 48. And the last 12 months were warmest on record as well.

By Jason Samenow | 04:34 PM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather

Posted at 01:33 PM ET, 07/09/2012

Historic heat wave in hindsight: Hottest on record in Washington D.C., hotter than 1930

By Ian Livingston and Jason Samenow

Mercifully, Washington, D.C.’s 11-day heat wave is over. We’ve crunched the numbers - and by almost every measure - it ranks as the most intense in 141 years of records.

By Ian Livingston and Jason Samenow | 01:33 PM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Latest, Local Climate, Extreme Heat

Posted at 11:07 AM ET, 07/09/2012

Boom! Deafening thunder, lightning at Twins vs. Rangers game (WATCH)

By Jason Samenow

In the midst of an ordinary mid-summer baseball game in Arlington, Texas, between the Minnesota Twins and Texas Rangers, an incredible crash of thunder and simultaneous lightning strike delivered a startling jolt. Without hesitation, umpires and players bolted from the scene.

By Jason Samenow | 11:07 AM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Latest, U.S. Weather

Posted at 10:30 AM ET, 07/09/2012

Washington, D.C. derecho storm names: Derechosaurus Wrecks and Swelter in Place

By Jason Samenow

Thank you for dozens of suggestions for storm names. Lots of great, creative ideas. We’ve narrowed down the most popular choices so you can vote for your favorite. We will announce the winner Thursday.

By Jason Samenow | 10:30 AM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat, Thunderstorms

Posted at 05:00 AM ET, 07/09/2012

D.C. area forecast: Heat wave is history, storm chances at times this week

By Jason Samenow

The hottest week in recent memory is behind us. Let’s welcome a week with temperatures near normal or even a bit below. Yes, we’ll have occasional rain opportunities, but we really need them after the recent scorching and a mounting rainfall deficit.

By Jason Samenow | 05:00 AM ET, 07/09/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 02:01 PM ET, 07/08/2012

A few storms possible overnight; awaiting Monday’s cooler air

By Jason Samenow

A Severe Thunderstorm Watch that had been in effect for the D.C. and Baltimore metro region through 10 p.m. has been cancelled. Some of the earlier storms contained damaging winds and large hail, dangerous lightning and torrential rain.

By Jason Samenow | 02:01 PM ET, 07/08/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 12:15 PM ET, 07/08/2012

Washington, D.C. hits 102, breaks daily record, ties mark for most straight 100+ days

By Jason Samenow

Washington has extended its streak of 95-plus days to a record-setting 11 days.

By Jason Samenow | 12:15 PM ET, 07/08/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat, Local Climate

Posted at 05:00 AM ET, 07/08/2012

D.C. area forecast: Record heat wave goes out with a bang for some

By Brian Jackson

Relief is in sight, but first we need to make it through today. We’re likely to reach 95 or higher once more today, which would extend our 95+ streak to a Spinal Tap-ian 11 days. Before cooler weather can come in and end our torture, at least some of us will likely have to deal with strong to severe storms this afternoon into evening.

By Brian Jackson | 05:00 AM ET, 07/08/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/08/2012

Nationals vs. Rockies weather forecast: Hot heading into the break

By Brian Jackson

We’re closing out the first half of the season on a hot note - hopefully the Nats do the same. Strong storms may threaten by the later innings so keep an eye on the sky.

By Brian Jackson | 04:55 AM ET, 07/08/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 05:40 PM ET, 07/07/2012

Washington, D.C. breaks record high for July 7; high of 105 falls one degree short of tying all-time high

By Dan Stillman and Ian Livingston

The high temperature at Reagan National Airport reached 105 today. That breaks D.C. record high for the date set in 2010, and it’s only the fifth time on record D.C. has climbed to 105 or higher.

By Dan Stillman and Ian Livingston | 05:40 PM ET, 07/07/2012 | Permalink | Comments ( 0)
Categories: Extreme Heat, Local Climate

Posted at 05:00 AM ET, 07/07/2012

D.C. area forecast: Intense heat blast creates unhealthy conditions

By Ian Livingston

As if the ongoing record stretch of high heat wasn’t enough, we’ve got even higher heat on the way today. Daily record highs almost seem a sure bet at National (102), Dulles (101) and Baltimore (101). All set just two years ago! There’s even an outside shot we reach all-time highs across the area -- currently 106 for D.C., 105 for Dulles and 107 for Baltimore, if you’re playing along at home. Add in high humidity as well as dirty air, and it’s going to be ugly out there. At least we finally see some cooler times on the horizon.

By Ian Livingston | 05:00 AM ET, 07/07/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/07/2012

Nationals vs. Rockies weather forecast: A really hot start, with minimal cooling thereafter

By Ian Livingston

Gotta wonder if attendance will take a hit on a day like this. At least you’re not playing? Seek shade, cold drinks and A/C when possible!

By Ian Livingston | 04:55 AM ET, 07/07/2012 | Permalink | Comments ( 0)
Categories: NatCast

Posted at 07:43 PM ET, 07/06/2012

Weather and worrying: summertime storms alarm some, post-derecho

By A. Camden Walker

Maybe some of us have post-traumatic stress disorder (PTSD) or acute stress disorder (ASD)? After last Friday’s big time derecho complex rolled through, we learned about just how badly we could hurt, how badly our homes, trees, cars—our very infrastructure—could be damaged. Even now, a few thousand of us still don’t have power.

By A. Camden Walker | 07:43 PM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms, Health

Posted at 04:43 PM ET, 07/06/2012

PM Update: Excessive heat warning Saturday and code red air quality

By Jason Samenow

The combination of high temperature of 100-105 and high humidity levels has prompted the National Weather Service to issue an excessive warning from 11 a.m. to 10 p.m. Saturday - its most serious heat alert. Heat indices may exceed 110 in the afternoon. In addition, air quality is forecast to be code red, generally unhealthy.

By Jason Samenow | 04:43 PM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 12:49 PM ET, 07/06/2012

The longest, strongest heat wave: D.C. records 9th straight 95+ day

By Jason Samenow

For the 9th straight day, Washington, D.C. has met or exceed 95 degrees. In 141 years of records, this is a first. And the streak is likely to be extended to 11 after Saturday and Sunday. This record is just one of countless extraordinary heat records established over the course of the last three summers.

By Jason Samenow | 12:49 PM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat, Local Climate

Posted at 12:30 PM ET, 07/06/2012

Air-conditioning: Modern-day luxury or summertime necessity?

By Justin Grieser

If you were among the many D.C. locals who suffered without A/C for a day or more, you’ll likely agree that surviving summer without it is nearly impossible. It makes us wonder how earlier generations coped during the dog days of summer before the invention of indoor cooling.

By Justin Grieser | 12:30 PM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat

Posted at 10:31 AM ET, 07/06/2012

Mammatus clouds bubble up in Washington, D.C.’s evening sky (PHOTOS)

By Jason Samenow

Who doesn’t love mammatus clouds? These eerie, pouch-like structures that develop in sinking air are the atmosphere’s version of bubble-wrap: you want to extend your arms and pop them.

By Jason Samenow | 10:31 AM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms, Photography

Posted at 05:00 AM ET, 07/06/2012

D.C. area forecast: Potentially dangerous heat continues to plague the area

By A. Camden Walker

Everything feels overheated. Record heat looks possible too. Maybe even challenging the all time D.C. high temperature of 106? Potentially. Anywhere you look it is going to be downright miserable and dangerous if you’re out too long without taking numerous precautions. Any breeze out of the south or southwest only makes you long for cooler times. Please check on your friends, neighbors, and relatives. Make sure they are drinking plenty of water!

By A. Camden Walker | 05:00 AM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/06/2012

Nationals vs. Rockies weather forecast: Hot and muggy

By A. Camden Walker

Be prepared to sweat. It’s muggy, it’s hot. Storm chances are pretty low or nonexistent, though if you see bubbling clouds keep an eye on them.

By A. Camden Walker | 04:55 AM ET, 07/06/2012 | Permalink | Comments ( 0)
Categories: NatCast

Posted at 05:03 PM ET, 07/05/2012

PM Update: Chance of an isolated storm this evening, then a fiery hot Friday

By Jason Samenow

We touched the century mark today but fell two degrees short of the record (102). A steamy night lies ahead before another run towards a record high (103) Friday (probably falls just short). Keep eye on the sky this evening as an isolated thunderstorm or two could pop up.

By Jason Samenow | 05:03 PM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:21 PM ET, 07/05/2012

Did global warming intensify the derecho in Washington, D.C.?

By Jason Samenow

The June 29 derecho, which caused mass destruction from west of Chicago to east of Washington, D.C., blossomed to full fury in a record hot environment. Could the heat added to the atmosphere from manmade greenhouse gases have provided extra fuel to this explosive storm?

By Jason Samenow | 04:21 PM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Latest, Climate Change, Thunderstorms

Posted at 12:47 PM ET, 07/05/2012

Worst heat wave ever? Washington, D.C. ties record for most straight 95+ days, more coming

By Jason Samenow

In terms of the duration of a punishing heat wave, the current spell has arrived at historic levels. For the 8th straight day, the temperature has reached at least 95 degrees in Washington, D.C. - tying 2002, 1993, and 1988 for the most such days on record.

By Jason Samenow | 12:47 PM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Latest, Extreme Heat, Droughts, Local Climate

Posted at 10:08 AM ET, 07/05/2012

July 4th fireworks in Washington, D.C. (PHOTOS)

By Kevin Ambrose, Ian Livingston and Jason Samenow

While mother nature produced her own fireworks west of Washington, D.C., the Capitol Mall remained dry (though uncomfortably muggy) for the annual July 4 fireworks. Capital Weather Gang photographers Kevin Ambrose and Ian Livingston captured some dramatic views for us all to enjoy...

By Kevin Ambrose, Ian Livingston and Jason Samenow | 10:08 AM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Capital Weather Gang, Photography, Latest

Posted at 09:06 AM ET, 07/05/2012

Spectacular July 4th lightning in Aldie, Va.

By Jason Samenow

It was a light show manmade fireworks couldn’t hold a candle to. Facing south-southeast, Kevin Dzierwinski captured one of the most dramatic lightning images from Aldie, Va. I’ve seen in a while Wednesday night.

By Jason Samenow | 09:06 AM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Latest, Photography

Posted at 05:00 AM ET, 07/05/2012

D.C. area forecast: Heat is on until Monday, some records threatened

By David Streit

The heat is gearing up with triple digits likely in drier areas for the next three days. Not the trifecta I would like. It is probable that some records get broken. The few isolated t-storms today are likely to evaporate before reaching most of us. This is dangerous heat so please take it easy and water yourself, pets and gardens too!

By David Streit | 05:00 AM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/05/2012

NatCast: HOT!!! Both the team and the weather

By David Streit

Hit the cold soda and ice cream stands early and often. Hopefully, the seats in the sun won’t melt before it sets.

By David Streit | 04:55 AM ET, 07/05/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 08:50 PM ET, 07/04/2012

Post-fireworks storms move through west suburbs

By Jason Samenow, Ian Livingston and Dan Stillman

Temperatures have climbed into the 90s and humidity levels are moderate-to-high (dew points upper 60s). The atmosphere was fueled up for possible strong late afternoon and evening thunderstorms, but storms mostly held off through fireworks time.

By Jason Samenow, Ian Livingston and Dan Stillman | 08:50 PM ET, 07/04/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 05:00 AM ET, 07/04/2012

D.C. area forecast: A scorching 4th with a risk of storms for some

By Dan Stillman

Today's high heat and humidity along with a chance of thunderstorms isn’t terribly unusual for July 4th in and around the nation’s capital. But what is far from usual is the surrounding circumstances of continued derecho recovery and a number of cancelled fireworks displays. The big one is still set to go off on the National Mall as long as storms don’t interfere. No matter where you are or what you’re doing today, please do stay safe in the heat, and if thunder roars, head indoors.

By Dan Stillman | 05:00 AM ET, 07/04/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/04/2012

Nationals vs. Giants weather forecast: Hot as a firecracker

By Ian Livingston

It’s going to be a toasty one, but also more than likely shower and storm free. If anything passes, should be quick. Grab the sunscreen on your way out the door!

By Ian Livingston | 04:55 AM ET, 07/04/2012 | Permalink | Comments ( 0)
Categories: NatCast

Posted at 07:10 PM ET, 07/03/2012

Strong thunderstorms exiting D.C. area; possible second round towards morning

By Jason Samenow

A line of thunderstorms is likely to move through the D.C. area between 7 and 10 p.m. from northwest to southeast. Heavy downpours, lightning and gusty winds are likely with these storms. While isolated damaging wind gusts are possible, widespread destructive winds like we experienced Friday night are not likely.

By Jason Samenow | 07:10 PM ET, 07/03/2012 | Permalink | Comments ( 0)

Posted at 04:32 PM ET, 07/03/2012

PM Update: Scattered storms tonight, hot July 4th with chance of more storms

By Jason Samenow

For the sixth consecutive day the mercury hit 95 or higher. Luckily, humidity levels were manageable as a bubble of dry air moved overhead. The dry air gets kicked out this evening, and storms may develop over the region as the atmosphere moistens. Independence Day is hot and humid with another possible round of storms.

By Jason Samenow | 04:32 PM ET, 07/03/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 03:19 PM ET, 07/03/2012

Dangerous chase: Derecho pursuit in Washington, D.C.

By Kevin Ambrose

The derecho storm chase was one of the most bizarre, painful, and unique experiences of my storm chasing career. Ian and I both lost camera gear during our scary run along the river bank to the Jefferson Memorial. We were blasted by 70+ mph winds, blinding rain, and flying debris. In the end, I salvaged a few storm photos.

By Kevin Ambrose | 03:19 PM ET, 07/03/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms, Photography

Posted at 12:58 PM ET, 07/03/2012

Could forecasters have better predicted the June 29 derecho?

By Ian Livingston

We know a number of facts about the June 29 derecho now. While the United States moves toward becoming a weather ready nation, how could something like this happen with half a day or less of warning? Is it destined to happen again?

By Ian Livingston | 12:58 PM ET, 07/03/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 05:00 AM ET, 07/03/2012

D.C. area forecast: Mostly sunny with rebuilding heat and humidity, isolated storm chance

By Matt Rogers

We’re headed back towards another brutal peak in heat and humidity late this week. By the time we reach the weekend, we could be feeling those 100-degree temperatures again. But what about storms? We seem to carry along a slight risk each day with the best chances on July 4 and Sunday, when a significant cool front may slide our way.

By Matt Rogers | 05:00 AM ET, 07/03/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:55 AM ET, 07/03/2012

NatCast: Very warm with a storm chance

By Matt Rogers

Lingering daytime heat and humidity keeps the evening very warm. Only a slight chance of a storm disruption. Otherwise, no problems.

By Matt Rogers | 04:55 AM ET, 07/03/2012 | Permalink | Comments ( 0)
Categories: Latest, NatCast

Posted at 05:00 PM ET, 07/02/2012

PM Update: More heat and more slight storm chances

By Ian Livingston

While we’ve dealt with a bit of heat relief today, it’s still plenty hot with temperatures surpassing 90 and heading as far as the mid-90s across the area. Fortunately, storm threats are generally low compared to recently, though it’s still tough to entirely rule out pop-up storms that could be strong with all this heat around. Tomorrow? Mainly the same story.

By Ian Livingston | 05:00 PM ET, 07/02/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 03:58 PM ET, 07/02/2012

Lightning gone wild during Washington D.C.’s derecho

By Jason Samenow

The wind stole the show, but the second most striking feature of Friday night’s derecho was the vivid, almost continuous display of lightning.

By Jason Samenow | 03:58 PM ET, 07/02/2012 | Permalink | Comments ( 0)
Categories: Government, Thunderstorms, Latest

Posted at 03:27 PM ET, 07/02/2012

Weather Channel to acquire Weather Underground

By Jason Samenow

The world of private sector weather services appears to be consolidating as corporate giant the Weather Channel announced plans to acquire the San Francisco-based Weather Underground.

By Jason Samenow | 03:27 PM ET, 07/02/2012 | Permalink | Comments ( 0)
Categories: Latest, Media

Posted at 12:54 PM ET, 07/02/2012

Extreme heat and power outages: Double trouble for human health

By Jason Samenow

Heat is a silent killer, that preys on older adults, people with medical conitions, and the frail. In a typical year, it kills more people than any other weather hazard. The best protection from heat-related illness and death is air conditioning. But, when the power goes out during a heat wave, that protection erodes.

By Jason Samenow | 12:54 PM ET, 07/02/2012 | Permalink | Comments ( 0)

Posted at 10:15 AM ET, 07/02/2012

Name the Washington, D.C. derecho of June 29

By Jason Samenow

We are requesting name recommendations for this storm. We welcome your suggestions, but please no names ending in “geddon” or “pocalypse”.

By Jason Samenow | 10:15 AM ET, 07/02/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms, Capital Weather Gang

Posted at 05:00 AM ET, 07/02/2012

D.C. area forecast: Hot all week with PM storm chances

By Jason Samenow

The hot, humid, and sometimes stormy weather pattern shows little sign of relenting in this first week of July. Every day this week, temperatures reach 90 or higher and there’s at least a small chance of late day or overnight thunderstorms most days.

By Jason Samenow | 05:00 AM ET, 07/02/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 04:14 PM ET, 07/01/2012

Update: A few late night showers and thundershowers, severe weather stays southwest

By Ian Livingston

After yesterday’s mini reprieve following the severe derecho on Friday, a resurgence of higher humidity mixed with record (96 at Dulles) and near-record temperatures around 100 degrees has helped promote a volatile environment over the area.

By Ian Livingston | 04:14 PM ET, 07/01/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Posted at 01:47 PM ET, 07/01/2012

Extraordinary energy: Friday night’s derecho in Washington, D.C.

By Jason Samenow

One of the key metrics for evaluating prospects for explosive thunderstorm development is called Convective Available Potential Energy, or CAPE. It’s an estimate of “fuel” available to developing thunderstorms. The CAPE levels Friday night as the derecho approached Washington, D.C. were - in short - astronomical.

By Jason Samenow | 01:47 PM ET, 07/01/2012 | Permalink | Comments ( 0)
Categories: Latest, Thunderstorms

Posted at 05:00 AM ET, 07/01/2012

D.C. area forecast: Still flirting with the century mark

By Brian Jackson

No reprieve for the weary as the heat continues across the mid-Atlantic. For any still without power, I know this is getting old quickly, but at least after today you can enjoy the a/c at work! Today brings the last of our near-term chances at triple-digits but we’ll stay well into the 90s heading through the upcoming week. Widespread severe weather is not likely, but storms are possible each day going forward. With this heat and instability, any will need to be watched carefully.

By Brian Jackson | 05:00 AM ET, 07/01/2012 | Permalink | Comments ( 0)
Categories: Forecasts

Capital Weather Gang: July, 2012