"Florida's Sweltering Heatwave Raises Heatstroke Concerns"

South Florida is under a heat advisory until 7 p.m. on Friday, with the heat index expected to reach 110 degrees in some areas, increasing the risk of death by heatstroke. Officials advise residents without access to air conditioning to spend the day in public spaces such as libraries and shopping malls. The National Weather Service and Centers for Disease Control and Prevention offer tips on how to prepare for extreme heat, including recognizing the signs of heat illness, staying hydrated, and avoiding high-energy activities during midday heat. Thunderstorms and a risk of tornadoes are expected in the area.