The National Weather Service has issued a Heat Advisory for northern Delaware and surrounding areas, warning residents that dangerous heat index values could reach 103 degrees through Friday evening.
New Castle County will experience the most extreme conditions, with the advisory taking effect Thursday at 11 AM and lasting until 8 PM Friday. The combination of hot temperatures and high humidity creates potentially dangerous conditions that could lead to heat-related illnesses.
Neighboring areas in Pennsylvania and New Jersey, including Philadelphia, Camden, and Gloucester counties, are also under the same heat advisory.
Health officials urge residents to take immediate precautions: drink plenty of fluids, stay in air-conditioned spaces, and avoid prolonged sun exposure. When venturing outside, wear lightweight, loose-fitting clothing and limit strenuous activities to early morning or evening hours.
Residents should check on elderly neighbors and relatives, and watch for symptoms of heat exhaustion and heat stroke. Those without air conditioning can call 211 or visit their county health department website to find cooling centers.
The advisory expires Friday at 8 PM, but residents should continue monitoring weather conditions as summer heat continues to build across Delmarva.