Weather Alerts For Saint John, VI

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 5 PM AST THIS AFTERNOON # SUMMARY -------------------- San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Ponce and Vicinity-Northwest-Mayaguez and Vicinity- Southwest-Culebra-Vieques-St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Naguabo, Vega Baja, Florida, Gurabo, Hatillo, Fajardo, Loiza, Arroyo, Catano, Yabucoa, Las Piedras, Guayanilla, Charlotte Amalie West, Mayaguez, Culebra, Humacao, Vieques, Christiansted, Frederiksted, Manati, Charlotte Amalie, Cabo Rojo, Toa Alta, Carolina, Patillas, Caguas, Cruz Bay, Camuy, Quebradillas, Aguadilla, Guanica, Hormigueros, San German, Rio Grande, Grove Place, Toa Baja, Cayey, Juana Diaz, Comerio, Yauco, Santa Isabel, Isabela, Vega Alta, Rincon, Frederiksted Southeast, Ponce, Maunabo, Anna's Retreat, Guaynabo, Dorado, Penuelas, Lajas, Cidra, Ceiba, Charlotte Amalie East, Bayamon, Trujillo Alto, Arecibo, Barceloneta, Anasco, Salinas, Moca, San Lorenzo, Aguada, Luquillo, Juncos, Canovanas, Guayama, Aguas Buenas, and San Juan 957 AM AST Mon Jul 6 2026 # DETAILS -------------------- WHAT Heat index values up to 103 expected. WHERE Portions of Puerto Rico and Virgin Islands. WHEN Until 5 PM AST this afternoon. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Monday, July 6, 2026 at 9:57 AM AST ISSUED BY National Weather Service San Juan PR HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during 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.