Heat Advisory
Status
New Event ExpiredStart Time
Fri 07/25/2025 11:00 AM EDTEnd Time
Fri 07/25/2025 08:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 123 AM EDT Thu Jul 24 2025 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and northern and northwest Virginia. * WHEN...From 11 AM to 8 PM EDT Friday. * IMPACTS...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. 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.
Technical Header
DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ039-040-051-053- 054-501-502-505-506-526-527-241800- /O.NEW.KLWX.HT.Y.0008.250725T1500Z-250726T0000Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-Northwest Montgomery-Central and Southeast Montgomery-Northwest Howard-Central and Southeast Howard- Northwest Harford-Southeast Harford-Madison-Rappahannock-Culpeper- Fairfax-Arlington/Falls Church/Alexandria-Northern Fauquier- Southern Fauquier-Western Loudoun-Eastern Loudoun-Northwest Prince William-Central and Southeast Prince William/Manassas/Manassas Park- 123 AM EDT Thu Jul 24 2025
