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Somerset County Public Safety
Thursday August 27th, 2026 :: 01:18 p.m. EDT

Advisory

Flash Flood Warning until 05:15PM

FFWPHI The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for... Mercer County in central New Jersey... Southwestern Somerset County in northern New Jersey... Southeastern Bucks County in southeastern Pennsylvania...

* Until 515 PM EDT.

* At 117 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 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 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... Trenton, Ewing, Princeton, Bristol, Pennington, Yardley, Newtown, Hopewell, Tullytown and Langhorne.

* AFFECTED AREAS: MERCER, NJ ... SOMERSET, NJ ... BUCKS, PA

Instructions:

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

Address/Location
Somerset County Public Safety
20 Grove St
Somerville, NJ 08876

Contact
Emergency: 9-1-1
Non-emergencies: 908-231-7140

Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Immediate - Responsive action SHOULD be taken immediately
Certainty:
Likely (p > ~50%)
Category:
Meteorological (inc. flood)
Event:
Flash Flood Warning

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