A heat advisory will be in effect across St. Croix, St. Thomas and St. John from 9 a.m. to 5 p.m. AST Tuesday, October 27, as hot and humid conditions raise the risk of heat-related illness. The National Weather Service in San Juan issued the advisory at 2:44 a.m., warning that people sensitive to heat face greater risks without adequate cooling or hydration.
Forecasters expect the strongest heat impacts in coastal and urban areas. In its early-morning forecast discussion, the weather service reported overnight minimum temperatures in the lower to middle 80s across the U.S. Virgin Islands, with temperatures expected to rise quickly during the day.
The advisory cautions that high temperatures and elevated heat indices can worsen symptoms in people with chronic conditions. Residents are urged to drink fluids, spend time in air-conditioned spaces, avoid direct sunlight and check on relatives and neighbors.
People spending time outdoors should wear lightweight, loose-fitting clothing and move strenuous activities to the early morning or evening, the weather service advised. It also urged people to take action if symptoms of heat exhaustion or heat stroke appear.
Above-normal sea-surface temperatures and moist southerly airflow are expected to sustain warm, humid conditions across the region. Passing showers remain possible, and forecasters expect warm conditions to continue into Thursday, although Tuesday’s heat advisory is scheduled to expire at 5 p.m.
