The mid-Atlantic and Northeast face a dangerous flash flood threat Thursday as storms move along the Interstate 95 corridor. The Weather Prediction Center has issued a Level 3 of 4 flooding risk for Washington, DC, Philadelphia, New York City, and parts of Connecticut.
Heavy rainfall could bring up to 8 inches in some areas, with the heaviest downpours expected during the evening commute. New Jersey has declared a state of emergency as storm training and saturated soils increase the risk of rapid flooding.
⚠️In collaboration with @NWSWPC we have expanded the moderate risk of excessive rainfall and flash flooding potential up the I-95 corridor. Flood watches go into effect for the entire area starting at 2pm. You can check out our latest briefing at: https://t.co/610UeEEOhv pic.twitter.com/AihrDP843M
— NWS New York NY (@NWSNewYorkNY) July 31, 2025
Subways and roadways are at risk of inundation, echoing earlier summer events. The storms are linked to a cold front breaking the recent heat dome, unleashing high moisture levels on already-soaked ground.
Residents are urged to avoid travel, remain alert, and follow emergency updates. Flood watches remain in effect through Friday morning for multiple states.
According to NOAA and Climate Central, cities are seeing more intense rainfall events, complicating stormwater management across urban areas.
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