FirstAlerts

Heat Advisory Extended Through 5 PM AST for Culebra, Vieques, and U.S. Virgin Islands

The National Weather Service has extended the heat advisory for Culebra, Vieques, and the U.S. Virgin Islands until 5 PM AST today, September 6.

4 reports on this incident · first at Sep 6, 2026, 2:16 a.m. ET

By AI ReporterWritten Sep 6, 2026, 2:56 a.m. ET
The National Weather Service in San Juan has extended the for Culebra and Vieques in Puerto Rico, and St. Thomas, St. John, and adjacent islands, and St. Croix in the U.S. Virgin Islands. The now runs until 5 PM AST today, September 6, later than originally issued. The warns that high temperatures and elevated heat indices can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness for those sensitive to heat without adequate cooling or hydration. The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, OSHA recommends frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool, shaded location; heat stroke is an emergency, and 9 1 1 should be called.

Earlier reports

  1. Sep 6, 2026, 2:53 a.m. ET

    Heat Advisory Issued for Culebra, Vieques, and U.S. Virgin Islands

    The National Weather Service in San Juan, Puerto Rico, has issued a heat advisory for September 6, 2026, from 10:00 AM to 5:00 PM AST. The advisory covers Culebra and Vieques in Puerto Rico, and St. Croix, St. Thomas, St. John, and adjacent islands in the U.S. Virgin Islands.

    According to the advisory, heat index values are expected to reach levels that affect most individuals sensitive to heat, especially those without effective cooling or adequate hydration. The advisory warns that high temperatures can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among those sensitive to heat with inadequate cooling or hydration. Risks are highest across coastal areas, lowlands, interior valleys, and urban zones.

    Residents are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check on relatives and neighbors. The National Weather Service recommends wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action when seeing symptoms of heat exhaustion or heat stroke. For outdoor work, OSHA recommends frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

    The advisory is in effect until 5:00 PM AST this afternoon.

  2. Sep 6, 2026, 2:24 a.m. ET

    Heat Advisory for Culebra, Vieques, St. Thomas, St. John, and Adjacent Islands Until 5 PM AST

    The National Weather Service in San Juan, Puerto Rico, has issued a Heat Advisory for Sunday, September 6, from 10 a.m. to 5 p.m. AST. The advisory will lift at 5 p.m. AST. The heat could worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among those sensitive to heat with inadequate cooling or hydration.

    The advisory covers Culebra and Vieques in Puerto Rico, and St. Croix and St. Thomas, St. John, and Adjacent Islands in the U.S. Virgin Islands. The Weather Service said these risks are highest across coastal areas, lowlands, interior valleys, and urban zones.

    Officials advise drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. They recommend wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action when seeing symptoms of heat exhaustion and heat stroke. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9-1-1.

  3. Sep 6, 2026, 2:16 a.m. ETFirst report

    Heat Advisory Issued for Culebra, Vieques, and U.S. Virgin Islands

    The National Weather Service in San Juan, Puerto Rico, has issued a Heat Advisory for September 6, 2026, from 10 a.m. to 5 p.m. AST. The advisory covers Culebra and Vieques in Puerto Rico, and St. Croix, St. Thomas, St. John, and adjacent islands in the U.S. Virgin Islands. The advisory expires at 5 p.m. AST this afternoon.

    According to the advisory, this level of heat affects most individuals sensitive to heat, especially those without effective cooling or adequate hydration. High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among those with inadequate cooling or hydration. Risks are highest across coastal areas, lowlands, interior valleys, and urban zones.

    Precautions include drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. The advisory recommends wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action when symptoms of heat exhaustion or heat stroke appear. For outdoor work, the Occupational Safety and Health Administration recommends frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

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Revision history

  1. Version 16 Sept 2026, 06:56current

    First published.

  2. Version 16 Sept 2026, 06:24current

    First published.

  3. Version 16 Sept 2026, 06:16current

    First published.

  4. Version 16 Sept 2026, 06:53current

    First published.

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