576 WWCA72 TJSJ 120802 NPWSJU URGENT - WEATHER MESSAGE National Weather Service San Juan PR 402 AM AST Sat Aug 12 2023 PRZ012-013-VIZ001-002-121615- /O.NEW.TJSJ.HT.Y.0069.230812T1400Z-230812T2100Z/ Culebra-Vieques-St.Thomas...St. John...and Adjacent Islands- St Croix- Including the cities of Culebra, Vieques, Anna's Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, Cruz Bay, Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 402 AM AST Sat Aug 12 2023 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 PM AST THIS AFTERNOON... * WHAT...Heat index values of 108 to 111 degrees Fahrenheit. * WHERE...Lower elevations and urban areas of the US Virgin Islands, Vieques, and Culebra, particularly in areas that do not observe shower activity. * WHEN...From 10 AM this morning to 5 PM this afternoon. * IMPACTS...Heat exhaustion is possible with prolonged exposure. Heat stroke possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. 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. && $$