Delaware, New Jersey, Pennsylvania Severe Flood Watch | Effective 08/19/2026 11:08

Headline: 
Flood Watch issued August 19 at 2:08PM EDT until August 21 at 2:00AM EDT by NWS Mount Holly NJ
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 19, 2026 - 11:08am
Expires: 
August 20, 2026 - 2:00am
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, Atlantic, Camden, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington 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 Thursday afternoon through late Thursday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of showers and thunderstorms are expected across the area beginning Thursday afternoon through Thursday evening. Rainfall rates of 1 to 3 inches per hour are possible. Rainfall amounts of 1 to 2 inches are possible with localized amounts of 3 to 5 inches which could cause 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; Hunterdon; Somerset; Middlesex; Western Monmouth; Eastern Monmouth; Mercer; Salem; Gloucester; Camden; Northwestern Burlington; Ocean; Cumberland; Atlantic; Coastal Atlantic; Coastal Ocean; Southeastern Burlington; Delaware; Philadelphia; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov