A flash flood warning was issued by the National Weather Service for the following: Berks, until 8:15 p.m., Chester, Delaware and Montgomery counties, until 9:45 p.m. and Bucks, until 10 p.m. Tuesday.

The National Weather Service issued a flood watch from 5 p.m. Wednesday to 2 a.m. Thursday for southeastern Pennsylvania.

The stunning flood that killed more than two dozen campers and counselors along a river at Camp Mystic in the Texas Hill Country was the result of extraordinary rain and walls of water. Nonetheless, ...