
Simply as New Yorkers emerge from summer season’s second warmth wave Thursday, the Nationwide Climate Service has issued a flood look ahead to the world, warning that intense rainfall might rapidly overwhelm drains and streets and doubtlessly trigger “localized, severe flooding.”
“A slow-moving frontal system will bring the potential for scattered to numerous instances of flash flooding, particularly for the NYC/NJ metro area and Long Island this afternoon into tonight,” the NWS mentioned in an early-morning replace.
The flood watch might be in impact from 2 p.m. Thursday till 8 a.m. Friday, when intervals of average to domestically heavy rainfall are anticipated.
Whereas rainfall totals throughout the world are anticipated to vary between 1.5 and three inches, some places might see as much as 5 inches, forecasters mentioned.
Widespread rain is forecast throughout a lot of the state via late Thursday night. Parts of the Southern Tier, Mid-Hudson, New York Metropolis and Lengthy Island might see the heaviest rain, with the best rainfall charges anticipated between 2 p.m. and midnight. Flash flooding is feasible, officers warn.
Rainfall charges might exceed 2 inches per hour in some areas throughout the 5 boroughs, elements of Lengthy Island, in addition to Union, Essex and Hudson counties in New Jersey, based on the NWS.
“New Yorkers, be prepared for a serious storm to arrive later this afternoon,” Mayor Eric Adams mentioned in a social media publish simply earlier than 10 a.m. Thursday. “A Flood Watch begins at 2 PM, and we’ve issued a Travel Advisory for today and tomorrow,” Adams mentioned.
The New York State Division of Homeland Safety and Emergency Companies is warning residents of the southern a part of the state to be ready to reply to potential flash flooding.
Simply 6 inches of fast-moving floodwater can knock over an grownup, based on the NWS. About 12 inches of transferring water can carry away most automobiles, whereas 2 toes of speeding water can carry away SUVs and vans, the company warns.
Initially Revealed: July 31, 2025 at 10:01 AM EDT

