FVXX24 KNES 171459
VA ADVISORY
DTG: 20210717/1459Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT (5426 M)

ADVISORY NR: 2021/474

INFO SOURCE: GOES-16. WEBCAM. NWP MODELS.
RADIOSONDE. 

ERUPTION DETAILS: VA CLD OBS FM STLT

OBS VA DTG: 17/1440Z

OBS VA CLD: SFC/FL200 N1908 W09840 - N1902 W09837
- N1859 W09835 - N1851 W09837 - N1838 W09905 -
N1859 W09920 - N1908 W09840 MOV W 10KT 

FCST VA CLD +6HR: 17/2030Z SFC/FL200 N1902 W09837
- N1859 W09837 - N1846 W09838 - N1834 W09918 -
N1902 W09920 - N1902 W09837 

FCST VA CLD +12HR: 18/0230Z SFC/FL200 N1902
W09837 - N1859 W09838 - N1823 W09915 - N1900
W09931 - N1902 W09837 

FCST VA CLD +18HR: 18/0830Z SFC/FL200 N1902
W09837 - N1859 W09838 - N1823 W09915 - N1900
W09931 - N1902 W09837 

RMK: NEARLY STATIONARY VA CLD OBS W AND SW OF
SUMMIT EXTDG APRX 35NM. WINDS FCST TO ACCEL THRU
T+12 AND TURN TO WSW. FL BASED ON RADIOSONDE. 
...COVERDALE

NXT ADVISORY: WILL BE ISSUED BY 20210717/2100Z
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