Severe Storms Trigger Tornado Watch and Flash Flood Warnings Across NYC

New York City is under a heightened state of alert as severe weather conditions sweep through the region. A tornado watch has been issued for all five boroughs, remaining in effect until 9 p.m. on Monday, July 21, 2026. While the National Weather Service notes that tornadoes are uncommon in the city, officials stated that current atmospheric conditions could support their development.

In addition to the tornado watch, flash flood warnings were issued for Brooklyn, Manhattan, Queens, and the Bronx throughout the evening. Forecasters warned that between one and two inches of rain could accumulate, creating significant hazards for motorists and residents in low-lying areas or locations with inadequate drainage.

Infrastructure impacts were reported as the storm intensified. City officials confirmed that flooding caused travel delays on the Major Deegan Expressway near West 234th Street in the Bronx. Furthermore, a fallen tree forced the closure of all northbound lanes on the Henry Hudson Parkway near West 66th Street.

Emergency management personnel have advised residents to take proactive safety measures. Those currently in basements are encouraged to relocate to the highest floor of their buildings. Officials also cautioned drivers against attempting to navigate flooded roadways, noting that even shallow water can pose a risk to vehicles.

Beyond the city, the severe weather has had a regional impact. Westchester County was placed under a flash flood warning and a tornado watch, while state offices in New Jersey closed early in the afternoon to mitigate risks associated with the approaching storm. Residents are urged to keep emergency alerts active on their mobile devices and monitor official communications for further updates as the situation develops.