A Heat Advisory remains in effect for New Castle County and surrounding areas through 8 PM Friday as dangerous heat index values climb to 104 degrees.
The National Weather Service issued the advisory early this morning, warning residents in northern Delaware, southeastern Pennsylvania, and southern New Jersey to take precautions against heat-related illness. The advisory covers New Castle County in Delaware, along with Philadelphia, parts of Chester, Montgomery, and Bucks counties in Pennsylvania.
The combination of hot temperatures and high humidity creates potentially dangerous conditions from 11 AM today through Friday evening. While scattered thunderstorms may provide temporary relief late this afternoon and Friday evening, humidity levels will remain elevated until a cold front moves through this weekend.
Health officials urge residents to drink plenty of fluids, stay indoors in air conditioning when possible, and avoid prolonged sun exposure. Wear lightweight, loose-fitting clothing and limit outdoor activities to early morning or evening hours.
Check on elderly relatives and neighbors, and watch for signs of heat exhaustion including dizziness, nausea, and excessive sweating. Those without air conditioning can call 211 for assistance finding cooling centers.
Relief is expected this weekend as cooler, less humid air moves into the region.