Headline:
Extreme Heat Watch issued June 30 at 2:25PM EDT until July 3 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Event:
Extreme Heat Watch
Urgency:
Future
Effective:
June 30, 2026 - 11:25am
Expires:
June 30, 2026 - 7:30pm
Description:
* WHAT...For the Heat Advisory, heat index values of 105 to 109
expected. For the Extreme Heat Watch, dangerously hot conditions
with heat index values around 110 possible.
* WHERE...DC, and portions of central, north central, northeast,
northern, and southern Maryland, and central, northern, and
northwest Virginia.
* WHEN...For the Heat Advisory, from 11 AM to 8 PM EDT Wednesday.
For the Extreme Heat Watch, from Thursday morning through Friday
evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.
* ADDITIONAL DETAILS...Heat index values may approach 115 in spots
near and east of Interstate 95 Thursday afternoon and Friday
afternoon, especially near larger bodies of water. Dangerous heat
may linger into Saturday. Prolonged extreme heat could 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.
Look before you lock. Never leave anyone unattended in a vehicle as
temperatures can reach lethal levels in a matter of minutes during
extreme heat.
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! In cases of heat stroke, call 9 1 1.
Area Description:
District of Columbia; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; 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: