Headline:
Flash Flood Warning issued August 6 at 12:44AM EDT until August 6 at 3:45AM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 5, 2026 - 9:44pm
Expires:
August 6, 2026 - 12:45am
Description:
At 1244 AM EDT, local law enforcement reported thunderstorms
producing heavy rain in Flooding on Route 46 east of NJ15 in Dover.
Between 1 and 2 inches of rain have fallen. The expected rainfall
rate is 0.5 to 1 inch in 1 hour. Additional rainfall amounts of 1 to
2 inches are possible in the warned area. Flash flooding is already
occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
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...
Morristown, Bridgewater, Dover, Madison, Florham Park, East
Hanover, Chatham, Boonton, Wharton, Rockaway, Morris Plains and
Mount Arlington.
This includes the following highways...
Interstate 287 in New Jersey between mile markers 17 and 46.
Interstate 78 in New Jersey between mile markers 17 and 38.
Interstate 80 in New Jersey between mile markers 29 and 48.
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:
Hunterdon, NJ; Morris, NJ; Somerset, NJ
Forcast Office:
NWS Mount Holly NJ
Sender:
w-nws.webmaster@noaa.gov