Borough of North Caldwell Alerts

Flash Flood Warning issued September 1 at 7:13PM EDT until September 1 at 11:15PM EDT by NWS Mount Holly NJ

Headline

Flash Flood Warning issued September 1 at 7:13PM EDT until September 1 at 11:15PM EDT by NWS Mount Holly NJ

Description

FFWPHI

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
Eastern Morris County in northern New Jersey...

* Until 1115 PM EDT.

* At 713 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

* Some locations that will experience flash flooding include...
Morristown, Madison, Florham Park, East Hanover, Lincoln Park,
Kinnelon, Boonton, Butler, Rockaway, Morris Plains, Mountain Lakes
and Riverdale.

Instructions

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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.

Additional Details

TypeAlert
PhenomenaFlash Flood
SeverityWarning
Event CodeFFW
AreaMorris, NJ
SentTuesday, September 1, 2026 7:13 PM EDT
ExpiresTuesday, September 1, 2026 11:15 PM EDT
SenderNWS Mount Holly NJ
Idurn:oid:2.49.0.1.840.0.645d806ba5043482f062f09889b195605bcb2209.001.1