Hammered by heavy rain and huge hail Thursday night, Houston braces for more downpours, flooding

Clusters of violent and slow-moving thunderstorms converged on the Houston area Thursday night, unleashing torrential rain and enormous hail. The deluge wrought havoc on the city, spurring floods reminiscent of Hurricane Harvey in some areas.

And the heavy rain threat is not over.

Houston is under a flash flood watch through Saturday night, given the potential for at least one to three additional inches of rain on top of the two to five inches that fell Thursday night and two to three inches that fell Tuesday.