New Jersey Severe Flash Flood Warning | Effective 08/05/2026 22:58

Headline: 
Flash Flood Warning issued August 6 at 1:58AM EDT until August 6 at 4:30AM EDT by NWS Mount Holly NJ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 5, 2026 - 10:58pm
Expires: 
August 6, 2026 - 1:30am
Description: 
At 158 AM EDT, Doppler radar indicated thunderstorms produced heavy rain across the warned area, and additonal rainfall is likely. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of up to 0.5 inches are possible in the warned area. 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... Lincoln Park, Kinnelon, Boonton, Butler, Riverdale, Pequannock Township, Green Pond and Lake Telemark. This includes Interstate 287 in New Jersey between mile markers 46 and 53.
Instruction: 
Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Area Description: 
Morris, NJ
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov