Severe · Flash Flood WarningActive alert
Flash Flood Warning issued September 1 at 9:19PM EDT until September 2
Affecting Hunterdon, NJ; Mercer, NJ; Middlesex, NJ; Bucks, PA
In effect until: Sep 2, 2026, 5:15 AM
Hunterdon, NJ; Mercer, NJ; Middlesex, NJ; Bucks, PA
Likely impact across 4 counties in NJ and PA; effects through 5:15 AM.
Get to higher ground now. Never drive through flooded roads.
Read the original bulletin (official text)
FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Mercer County in central New Jersey... Southwestern Middlesex County in northern New Jersey... Southeastern Hunterdon County in northwestern New Jersey... Southeastern Bucks County in southeastern Pennsylvania... * Until 115 AM EDT. * At 919 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. 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, Hightstown, Pennington, Yardley, Newtown, Hopewell and Tullytown.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™