Headline:
Extreme Heat Warning issued July 4 at 9:07AM EDT until July 4 at 9:00PM EDT by NWS Baltimore MD/Washington DC
Event:
Extreme Heat Warning
Urgency:
Expected
Effective:
July 4, 2026 - 6:07am
Expires:
July 4, 2026 - 2:15pm
Description:
* WHAT...Dangerously hot conditions with heat index values of 110 to
115.
* WHERE...Washington DC, and portions of central, north central,
northeast, northern, and southern Maryland, and central, northern,
and northwest Virginia.
* WHEN...Until 9 PM EDT this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Prolonged excessive heat may impact power,
water, and transportation systems. Heat index values around 100 to
105 are possible again Sunday afternoon.
Instruction:
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.
Area Description:
District of Columbia; Frederick; 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; Nelson; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Arlington/Falls Church/Alexandria; Stafford; Spotsylvania; King George; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park
Forcast Office:
NWS Baltimore MD/Washington DC
Sender: