New Jersey Severe Flash Flood Warning | Effective 08/07/2026 14:42

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northeastern Mercer County in central New Jersey... Middlesex County in northern New Jersey... Southeastern Morris County in northern New Jersey... Central Somerset County in northern New Jersey... * Until 845 PM EDT. * At 542 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has 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 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. * Some locations that may experience flash flooding include... New Brunswick, Morristown, Somerville, Somerset, Edison, East Brunswick, South Brunswick, North Brunswick, Madison, Middlesex, Princeton and Florham Park. This includes the following highways... New Jersey Turnpike between exits 8A and 11. Interstate 287 in New Jersey between mile markers 0 and 16...and between mile markers 27 and 47. Interstate 78 in New Jersey between mile markers 34 and 42. Interstate 80 in New Jersey between mile markers 40 and 48. Garden State Parkway between mile markers 130 and 134.