Heat Advisory
Status
Event Continued Active alertStart Time
Sat 07/04/2026 10:00 AM EDTEnd Time
Sat 07/04/2026 08:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 118 AM EDT Fri Jul 3 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY... * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Heat Advisory, heat index values up to 105 expected. * WHERE...Portions of north central Maryland, northwest Virginia, and eastern and panhandle West Virginia. * WHEN...For the Extreme Heat Warning, from 10 AM this morning to 8 PM EDT this evening. For the Heat Advisory, 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Technical Header
MDZ003-VAZ027>031-WVZ050>053-055-031330- /O.CON.KLWX.XH.W.0003.260703T1400Z-260704T0000Z/ /O.CON.KLWX.HT.Y.0007.260704T1400Z-260705T0000Z/ Washington-Shenandoah-Frederick-Page-Warren-Clarke-Hampshire- Morgan-Berkeley-Jefferson-Hardy- 118 AM EDT Fri Jul 3 2026