Heavy rain causes more flash flooding in St. Louis

The St. Louis area was under a flash flood warning Thursday as heavy rain once again hit the area following what the National Weather Service called a "historic rainfall event" earlier this week. Thursday's flash flood warning is in effect until at least 5:45 p.m. local time, NWS said.

"Between 2 and 3 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area, but rain is quickly moving east out of the area," NWS St. Louis said Thursday. "Flash flooding is ongoing."

The St. Louis Fire Department on Thursday responded to numerous calls of vehicles that had been stranded on flooded roads. The fire department warned motorists that several feet of flooding had been reported, and said not to drive through standing water.