Delaware, New Jersey, Pennsylvania Severe Flood Watch | Effective 06/21/2026 23:16

Headline: 
Flood Watch issued June 22 at 2:16AM EDT until June 23 at 6:00AM EDT by NWS Mount Holly NJ
Event: 
Flood Watch
Urgency: 
Future
Effective: 
June 21, 2026 - 11:16pm
Expires: 
June 23, 2026 - 3:00am
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 2 PM EDT this afternoon through late tonight. * IMPACTS...Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Showers and thunderstorms with rainfall rates potentially of 1-2 inches per hour are expected across the watch area. In urban locations, this will be enough to trigger flash flooding. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
New Castle; Morris; Hunterdon; Somerset; Middlesex; Western Monmouth; Mercer; Salem; Gloucester; Camden; Northwestern Burlington; Delaware; Philadelphia; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
Forcast Office: 
NWS Mount Holly NJ