New Jersey, Pennsylvania Severe Flash Flood Warning | Effective 08/05/2026 12:33

Headline: 
Flash Flood Warning issued August 5 at 3:33PM EDT until August 5 at 7:30PM EDT by NWS Mount Holly NJ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 5, 2026 - 12:33pm
Expires: 
August 5, 2026 - 4:30pm
Description: 
FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Hunterdon County in northwestern New Jersey... Southwestern Warren County in northwestern New Jersey... North Central Bucks County in southeastern Pennsylvania... * Until 730 PM EDT. * At 333 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain just beginning to move into the warned area. These storms have a history of producing 1 to 2 inches of rainfall within an hour and causing flash flooding. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. * Some locations that may experience flash flooding include... Easton, Flemington, High Bridge, Clinton, Alpha, Glen Gardner, Ferndale, Hampton, Frenchtown, Lebanon, Milford and Califon. This includes Interstate 78 in New Jersey between mile markers 0 and 23.
Instruction: 
Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. Be aware of your surroundings and do not drive on flooded roads.
Area Description: 
Hunterdon, NJ; Warren, NJ; Bucks, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov