New York City is preparing for a combination of dangerous heat, high humidity, and heavy rainfall, with officials activating emergency measures as forecasters warn of possible flash flooding through Friday.
Heat Advisory in Effect Through Friday
New York City and the wider Tri-State Area are under a heat advisory as temperatures and humidity are expected to create dangerous outdoor conditions on Thursday, August 6, and Friday, August 7, 2026.
The advisory took effect at 11:00 a.m. ET on Thursday and will remain in place until 8:00 p.m. ET on Friday. Although actual air temperatures may be lower, the combination of heat and humidity is expected to make it feel like 95°F to 100°F (35°C to 38°C) in many areas.
Weather forecasters have also designated both days as First Alert Weather Days, warning residents to prepare for extreme heat as well as the possibility of severe thunderstorms.
Flash Flood Threat Accompanies Stormy Weather
Alongside the heat, forecasters are warning that periods of heavy rain could trigger flash flooding, particularly in low-lying and poorly drained areas.
According to weather forecasts, Thursday afternoon and evening could bring scattered showers and thunderstorms, mainly to areas north and west of New York City. However, the city itself could also experience localized flash flooding if intense rainfall develops.
On Friday, weather conditions are expected to become even more unsettled, with more widespread showers and thunderstorms forecast across the region. High humidity is also expected to persist, making outdoor conditions uncomfortable and potentially hazardous.
City Activates Emergency Response Measures
In response to the forecast, New York City officials have activated heat and flash flood preparedness plans to help protect residents during the two-day weather event.
The city has opened cooling centers across all five boroughs to provide air-conditioned spaces for people seeking relief from the heat. Residents can locate the nearest cooling center through the city’s official online resources or by calling 311.
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Authorities are encouraging older adults, young children, people with chronic health conditions, and those without access to air conditioning to make use of these facilities during the advisory period.
COOL Vans to Provide Community Assistance
In addition to cooling centers, officials have deployed approximately two dozen Cooling Outreach On-Location (COOL) vans throughout the city and surrounding areas.
The mobile units are expected to assist residents by providing support during heat-related medical emergencies, distributing food and water, and connecting vulnerable individuals with available public services.
The initiative is aimed at reducing the health risks associated with prolonged exposure to extreme heat, particularly for homeless individuals and other at-risk populations.
Residents Urged to Stay Weather-Aware
Officials are advising New Yorkers to stay hydrated, limit strenuous outdoor activities during the hottest parts of the day, and monitor weather updates as conditions may change rapidly.
Motorists and commuters are also urged to exercise caution during periods of heavy rain, as flash flooding can develop quickly and make roads hazardous. Residents living in flood-prone areas are encouraged to remain alert for weather warnings and be prepared to take action if flooding occurs.
With high temperatures, oppressive humidity, and the threat of severe thunderstorms expected over the next two days, city authorities are urging the public to take precautions and stay informed until the weather system passes.
