A catastrophic Independence Day weekend in Texas will close with more rain and, in some cases, serious threats including quarter-size hail and high winds. A flash flood watch is in effect to begin the day in a terribly hit part of the state, as well.

A perfect storm of a slow-moving pocket of moist air, parched terrain and a hilly area prone to flash flooding unleashed absolute hell on Texas Hill Country — where more than 40 people have died, according to meteorologists.

A swift-moving flood that swept through the Hill Country of Texas on Friday, killing at least 32 people and leaving many more missing, was a flash flood.