Maryland, Virginia, West Virginia Moderate Heat Advisory | Effective 07/03/2026 19:05

Headline: 
Heat Advisory issued July 3 at 10:05PM EDT until July 4 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
July 3, 2026 - 7:05pm
Expires: 
July 4, 2026 - 3:15am
Description: 
* WHAT...Heat index values of 100 to 104 expected. * WHERE...Portions of north central and western Maryland, northwest and western Virginia, and eastern and panhandle West Virginia. * WHEN...From 10 AM to 8 PM EDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Early morning low temperatures in the around 70 combined with oppressive humidity will result in little to no overnight relief. Prolonged excessive heat may impact power, water, and transportation systems.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Area Description: 
Washington; Central and Eastern Allegany; Augusta; Rockingham; Shenandoah; Frederick; Page; Warren; Clarke; Eastern Highland; Hampshire; Morgan; Berkeley; Jefferson; Hardy; Eastern Grant; Eastern Mineral; Eastern Pendleton
Forcast Office: 
NWS Baltimore MD/Washington DC