New Jersey, New York Severe Flash Flood Warning | Effective 07/21/2026 15:37

Headline: 
Flash Flood Warning issued July 21 at 6:37PM EDT until July 21 at 7:15PM EDT by NWS Upton NY
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 21, 2026 - 3:37pm
Expires: 
July 21, 2026 - 4:15pm
Description: 
At 637 PM EDT, Flooding impacts will continue, but little additional rainfall is expected. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Jersey City, Hoboken, Midtown Manhattan, Jackson Heights, Astoria, Lower East Side, East Village, SoHo, Brooklyn Heights, Long Island City, Battery Park, Park Slope, Woodside, Greenpoint and Greenwich Village.
Instruction: 
Be aware of your surroundings and do not drive on flooded roads. Excessive runoff from heavy rainfall will cause flooding of urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. If you are in a basement, be prepared to move to a higher floor.
Area Description: 
Hudson, NJ; Kings, NY; New York, NY; Queens, NY
Forcast Office: 
NWS Upton NY