Flash Flood Warning — Monmouth County, New Jersey

🌊 Active: Flash Flood Warning

Flash Flood Warning issued August 3 at 11:03AM EDT until August 3 at 2:45PM EDT by NWS Mount Holly NJ

At 1103 AM EDT, A combination of NJDOT, automated rain gauges, and media reports indicated flash flooding is ongoing with extensive flooding being reported in the Highlands area of NJ and portions of both North and South Brunswick have reported road closures. Doppler radar indicated thunderstorms producing heavy rain across portions of the warned area. Between 1 and 4 inches of rain have fallen already with additional rainfall of up to 2 inches possible. For the coastal communities this rainfall is combining with increasing high tides to produce significant flooding. Flash flooding is already occurring. HAZARD...Life threatening flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. Some locations that may experience flash flooding include... Trenton, New Brunswick, Perth Amboy, Long Branch, Sandy Hook, Somerset, Edison, Middletown, Old Bridge, East

Effective August 3, 2026 at 11:03 AM ET · Expires August 3, 2026 at 2:45 PM ET

📋 Official NWS Guidance

Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.