New Jersey Severe Flash Flood Warning | Effective 07/28/2026 18:43

Headline: 
Flash Flood Warning issued July 28 at 9:43PM EDT until July 28 at 11:45PM EDT by NWS Mount Holly NJ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 28, 2026 - 6:43pm
Expires: 
July 28, 2026 - 8:45pm
Description: 
FFWPHI The National Weather Service in Mount Holly has extended the * Flash Flood Warning for... West Central Morris County in northern New Jersey... Northeastern Hunterdon County in northwestern New Jersey... Southeastern Warren County in northwestern New Jersey... * Until 1145 PM EDT. * At 943 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 4.5 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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... Hackettstown, Washington, High Bridge, Clinton, Oxford, Glen Gardner, Hampton, Lebanon, Califon, Annandale, Pleasant Valley and Brass Castle. This includes Interstate 78 in New Jersey between mile markers 11 and 24.
Instruction: 
Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Hunterdon, NJ; Morris, NJ; Warren, NJ
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov