Emergency management directors with the National Weather Service Charleston will hold a briefing Tuesday regarding changes to flash flooding event criteria.

The National Weather Service urged people to avoid travel if a flash flood warning was in place for their area.

"The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until midnight for a portion of central Pennsylvania," says the National Weather Service.

At 9:35 p.m. on Sunday, the NWS Raleigh NC released a flash flood warning in effect until Monday at 1:45 a.m. for Person County.

An updated flash flood warning was issued by the NWS Fort Worth TX on Monday at 5:25 a.m. in effect until 8:30 a.m. The warning is for Johnson, Bosque, Hamilton, Hill and Somervell counties.

On Monday at 3:37 p.m. the National Weather Service released a flash flood warning in effect until 7:45 p.m. for Carbon and Monroe counties.

Water rose fast along the Guadalupe River, causing dozens of deaths. Local officials said they couldn’t have seen it coming.