New York City emergency officials are urging residents to prepare for thunderstorms, heavy rain and possible localized flash flooding expected Tuesday into early Wednesday.
The New York City Emergency Management Department said Monday that periods of rain could begin as early as Tuesday morning, with heavier downpours and multiple rounds of thunderstorms likely between 4 p.m. and 11 p.m. Showers may continue overnight before clearing by early Wednesday.
The National Weather Service forecasts widespread rainfall totals of 1 to 1.5 inches, with isolated areas receiving up to 3.5 inches during the heaviest storms. Rainfall rates could reach up to 2 inches per hour in stronger thunderstorms, increasing the risk of flash flooding in low-lying and poor drainage areas, along with ponding on roads and highways.
Officials said the strongest storms could bring wind gusts of 40 to 60 mph, capable of downing tree limbs and tossing unsecured objects. Hail is also possible. No watches or warnings had been issued as of Monday.
“Our administration is getting ahead of storms that are heading to our city these next few days, and New Yorkers should take time to prepare too,” Mayor Zohran Kwame Mamdani said. He advised residents to expect travel delays and to move indoors during severe weather, adding that people should check on neighbors, particularly those living in basement apartments.
Emergency Management Commissioner Christina Farrell warned that conditions could worsen quickly, especially during the evening commute. “These storms can produce damaging winds and intense downpours with little warning,” she said, urging residents to stay alert and be ready to seek higher ground if flooding develops.
The city has activated its Flash Flood Emergency Plan, coordinating with weather agencies and other partners. Crews are clearing catch basins in flood-prone areas, and emergency teams are on standby.
Officials advised residents to allow extra travel time, avoid driving through flooded streets and secure outdoor items ahead of strong winds. They also encouraged people to sign up for emergency alerts through Notify NYC and monitor weather updates.
Emergency officials emphasized that even shallow floodwaters can stall vehicles or pose safety risks, urging residents to “turn around, don’t drown” when encountering flooded roadways.