Headline:
Flash Flood Warning issued July 29 at 12:02AM EDT until July 29 at 2:45AM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
July 28, 2026 - 9:02pm
Expires:
July 28, 2026 - 11:45pm
Description:
At 1202 AM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain with the Whippany River at
Morristown going into flood stage. Between 2 and 3 inches of rain
have fallen. The expected rainfall rate is 0.5 inches in 1 hour.
Additional rainfall amounts up to 0.5 inches are possible in the
warned area. Flash flooding is already occurring.
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.
For Whippany River at Morristown:
At 11:40pm the stage was 6.09 feet.
Flood Stage is 6 feet.
This includes the following highways...
Interstate 287 in New Jersey between mile markers 35 and 53.
Interstate 80 in New Jersey between mile markers 37 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.
Area Description:
Morris, NJ
Forcast Office:
NWS Mount Holly NJ
Sender:
w-nws.webmaster@noaa.gov