Heat Advisory issued September 7 at 10:03AM AST until September 7 at 5:00PM AST by NWS San Juan PR

Culebra; Vieques; St.Thomas...St. John.. and Adjacent Islands; St Croix

Urgency: Expected

Certainty: Likely

Onset: 9/7/2026, 2:03:00 PM

Expires: 9/7/2026, 9:00:00 PM

Details

* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. * WHERE...In Puerto Rico, Culebra and Vieques Counties. In Virgin Islands, St Croix and St. Thomas, and St. John. * WHEN...Until 5 PM AST this afternoon. * IMPACTS...High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions. They can also increase the risk of heat-related illness among individuals sensitive to heat with inadequate cooling or hydration. These risks are highest across coastal areas, lowlands, interior valleys, and urban zones.

What To Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Other Active Heat Advisory Alerts

Heat Advisory issued September 7 at 10:45AM CDT until September 8 at 8:00PM CDT by NWS Dodge City KS

Ellis; Rush; Pawnee; Stafford; Edwards; Kiowa; Pratt; Comanche; Barber

Heat Advisory issued September 7 at 10:31AM CDT until September 7 at 7:00PM CDT by NWS New Orleans LA

Northern Harrison; Northern Jackson; Southern Harrison; Southern Jackson

Heat Advisory issued September 7 at 10:31AM CDT until September 7 at 7:00PM CDT by NWS New Orleans LA

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Heat Advisory issued September 7 at 10:31AM CDT until September 7 at 7:00PM CDT by NWS New Orleans LA

Pointe Coupee; West Feliciana; East Feliciana; St. Helena; Washington; Iberville; West Baton Rouge; East Baton Rouge; Assumption; St. James; St. John The Baptist; Upper St. Bernard; Northern Tangipahoa; Southeast St. Tammany; Western Orleans; Eastern Orleans; Northern St. Tammany; Southwestern St. Tammany; Central Tangipahoa; Lower Tangipahoa; Northern Livingston; Southern Livingston; Western Ascension; Eastern Ascension; Upper Jefferson; Upper Plaquemines; Central Plaquemines; Lower Plaquemines; Central Jefferson; Coastal Jefferson; Upper Lafourche; Lower Lafourche; Upper Terrebonne; Lower Terrebonne; Upper St. Charles; Central St. Charles; Lower St. Charles; Wilkinson; Amite; Pike; Walthall; Pearl River; Northern Hancock; Southern Hancock

Heat Advisory issued September 7 at 9:02AM CDT until September 7 at 7:00PM CDT by NWS New Orleans LA

Northern Harrison; Northern Jackson; Southern Harrison; Southern Jackson

Source: National Weather Service.