Headline:
Flash Flood Warning issued July 21 at 2:49PM EDT until July 21 at 7:00PM EDT by NWS Mount Holly NJ
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
July 21, 2026 - 11:49am
Expires:
July 21, 2026 - 4:00pm
Description:
FFWPHI
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Central Morris County in northern New Jersey...
* Until 700 PM EDT.
* At 249 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1.5 inches of
rain have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Additional rainfall amounts of 0.5 to 1.5 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...
Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler,
Wharton, Rockaway, Morris Plains, Mount Arlington, Mendham and
Mountain Lakes.
This includes the following highways...
Interstate 287 in New Jersey between mile markers 42 and 53.
Interstate 80 in New Jersey between mile markers 29 and 44.
Instruction:
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Area Description:
Morris, NJ
Forcast Office:
NWS Mount Holly NJ
Sender: