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Heat Advisory

Status

New Event Active alert

Start Time

Thu 07/17/2025 11:00 AM EDT

End Time

Thu 07/17/2025 08:00 PM EDT

Significance

Advisory

Impacts

Low impact

Locations Affected

Washington, DC ∙ Baltimore, MD ∙ Alexandria, VA ∙ Bowie, MD ∙ Harmans, MD ∙ Dale City, VA ∙ Fort Howard, MD ∙ Pohick, VA ∙ Level, MD ∙ Franklin Farm, VA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 439 PM EDT Wed Jul 16 2025 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * WHAT...Heat index values around 105 expected. * WHERE...Washington DC, and portions of central, northern, and southern Maryland, and central and northern Virginia. * WHEN...From 11 AM to 8 PM EDT Thursday. * 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-MDZ008-011-013-014-016>018-508-VAZ053>055-057-527-170445- /O.NEW.KLWX.HT.Y.0007.250717T1500Z-250718T0000Z/ District of Columbia-Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford-Fairfax- Arlington/Falls Church/Alexandria-Stafford-King George-Central and Southeast Prince William/Manassas/Manassas Park- 439 PM EDT Wed Jul 16 2025