Flash flood watch in effect until early Thursday a.m. for the Princeton region
Severe weather and heavy rainfall are possible in the Princeton region Wednesday afternoon and evening. A flash flood watch is in effect until 2 a.m. Thursday, Sept. 9, for Mercer, Somerset, Hunterdon, Middlesex, Warren, and Sussex counties in New Jersey and Bucks County in Pennsylvania. Thunderstorms with heavy rain are expected to move through the…