NYC Heat Emergency Plan Activated

NEW YORK, NY— New York City activated its Heat Emergency Plan ahead of forecasted temperatures expected to push heat index values as high as 96 degrees across parts of the five boroughs.

The National Weather Service issued a heat advisory from 11 a.m. Tuesday through 8 p.m. Wednesday as forecasters warned of unseasonably hot conditions and elevated air pollution levels.

Mayor Zohran Mamdani said city agencies would expand emergency operations, open cooling centers and increase outreach to vulnerable residents, including older adults, people with chronic health conditions and New Yorkers experiencing homelessness.

City officials said the highest heat index readings are expected between 1 p.m. and 5 p.m. in portions of the Bronx, northern Manhattan and Staten Island.

New York City Emergency Management Commissioner Christina Farrell said the timing of the heat wave could catch residents off guard.

“Tomorrow, we'll be seeing temperatures that feel more like the middle of summer than the middle of May,” Farrell said. “Because it’s arriving early in the season, New Yorkers may not be thinking about heat safety yet.”

The City said cooling centers would open across all five boroughs, including accessible and pet-friendly locations. Residents can locate nearby cooling centers through the city’s Cool Options Map or by calling 311.

Health officials urged residents to remain indoors in air-conditioned spaces whenever possible, warning that fans alone may not prevent heat-related illness during extreme temperatures.

“The best way to prevent heat-related illness is to remain in a cool, air-conditioned environment — a fan alone isn’t enough,” Health Commissioner Alister Martin said. “If you do plan to be outside, stay in the shade, drink plenty of water and take frequent breaks as needed.”

The City also warned residents about deteriorating air quality conditions.

An Air Quality Health Alert remained in effect through 11 p.m. Monday with an Air Quality Index reading of 105, considered unhealthy for sensitive groups, including people with asthma and allergies.

Department of Homeless Services outreach teams will operate around the clock during the heat emergency, distributing water and encouraging unsheltered New Yorkers to enter shelters or cooler indoor spaces.

Officials urged residents to check on neighbors, limit outdoor activity during peak heat hours and recognize signs of heat illness, including rapid heartbeat and difficulty breathing.