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Severe Thunderstorm Watch and Flash Flood Warning Issued for Nassau, Brooklyn, Staten Island

The National Weather Service has issued alerts for parts of New York and Connecticut, with conflicting reports on the type and duration of the alerts.

4 reports on this incident · first at Aug 27, 2026, 4:46 p.m. ET

By AI ReporterFirst reported Aug 26, 2026, 9:50 p.m. ETUpdated Aug 27, 2026, 6:16 p.m. ET
The has issued weather alerts for Nassau, Brooklyn, Staten Island, Manhattan, counties north of the city, and southern Connecticut, effective from 12:00 p.m. EDT on August 27, 2026, according to Newsday. Newsday reports the alert as both a and a , with conflicting end times of 8:00 p.m. and 7:45 p.m. EDT. The alerts warn that atmospheric conditions could produce rains heavy enough in a short duration to cause flooding, especially in urban areas or those with poor drainage. Newsday also reports a for southwestern Nassau until 7:45 p.m., with the weather service monitoring a thunderstorm in the area just before 5 p.m. with heavy rain.

Earlier reports

  1. Aug 27, 2026, 5:23 p.m. ET

    Severe Thunderstorm Watch Extended Through 8 p.m. Thursday for Nassau, NYC

    The National Weather Service has extended the Severe Thunderstorm Watch for Nassau, New York City, and southern Connecticut, pushing the end time back to 8 p.m. Thursday, August 27, 2026. The watch, which began at noon Thursday, now runs longer than initially issued.

    The watch covers Nassau, Brooklyn, Staten Island, Manhattan, counties north of the city, and southern Connecticut, according to Newsday. Atmospheric conditions could produce rains heavy enough in a short duration to cause flooding, especially in urban areas or those with poor drainage.

  2. Aug 27, 2026, 4:53 p.m. ET

    Severe Thunderstorm Watch Issued for Nassau, NYC, Southern Connecticut

    The National Weather Service has issued a Severe Thunderstorm Watch for Nassau, Brooklyn, Staten Island, Manhattan, counties north of the city, and southern Connecticut, according to Newsday. The watch is in effect from 12:00 p.m. to 8:00 p.m. EDT on Thursday, August 27, 2026, and will lift at 8:00 p.m. EDT.

    Atmospheric conditions could produce rains heavy enough in a short duration to produce flooding, especially in urban areas or those with poor drainage, Newsday reported.

  3. Aug 27, 2026, 4:46 p.m. ETFirst report

    Severe Thunderstorm Watch Issued for Nassau, NYC, Southern Connecticut

    The National Weather Service has issued a Severe Thunderstorm Watch for Nassau, Brooklyn, Staten Island, Manhattan, counties north of the city, and southern Connecticut, according to Newsday. The watch is in effect from 12:00 p.m. to 8:00 p.m. EDT on Thursday, August 27, 2026, and expires at 8:00 p.m. EDT.

    The watch warns that atmospheric conditions could produce rains heavy enough in a short duration to produce flooding, especially in urban areas or those with poor drainage, Newsday reported. The event is still developing.

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Sources

Revision history

  1. Version 227 Aug 2026, 22:16current

    Rewrote headline to lead with the hazard and include affected locations (Nassau, Brooklyn, Staten Island) instead of 'NWS Issues'. Body unchanged as it already satisfied the warnings.

  2. Version 127 Aug 2026, 21:23current

    First published.

  3. Version 127 Aug 2026, 20:51

    First published.

  4. Version 127 Aug 2026, 20:46current

    First published.

  5. Version 127 Aug 2026, 20:53current

    First published.

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