Note: The Heat Advisory has expired for the DC region. The most recent advisory issuances before the expiration are below.
A Heat Advisory remains in effect to 8 pm Sunday, June 22, 2025 including the following jurisdictions.
MARYLAND: Washington.
VIRGINIA: Shenandoah, Frederick, Page, Warren, Clarke.
WEST VIRGINIA: Jefferson.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
…EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT MONDAY…
…EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING…
WHAT…For the Heat Advisory, heat index values up to 104. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 107 possible.
WHERE…In Maryland, Washington County. In Virginia, Clarke, Frederick, Page, Shenandoah, and Warren Counties. In West Virginia, Berkeley and Jefferson Counties.
WHEN…For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM to 9 PM EDT Monday. For the Extreme Heat Watch, from Tuesday morning through Tuesday evening.
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.
A Heat Advisory remains in effect to 8 pm Sunday, June 22, 2025 including the following jurisdictions.
MARYLAND: Frederick, northwest Montgomery.
WEST VIRGINIA: Loudoun.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
…EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT MONDAY…
…EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING…
WHAT…For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible.
WHERE…In Maryland, Northwest Montgomery and Frederick Counties. In Virginia, Loudoun County.
WHEN…For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM to 9 PM EDT Monday. For the Extreme Heat Watch, from Tuesday morning through Tuesday evening.
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.
A Heat Advisory remains in effect to 8 pm Sunday, June 22, 2025 including the following jurisdictions.
MARYLAND: central/eastern Allegany.
WEST VIRGINIA: Hampshire, Morgan, Hardy, eastern Grant, eastern Mineral.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
…HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM EDT MONDAY…
…HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT TUESDAY…
WHAT…For the first Heat Advisory, heat index values up to 102. For the second Heat Advisory, heat index values up to 104 expected. For the third Heat Advisory, heat index values up to 104 expected.
WHERE…In Maryland, Central and Eastern Allegany County. In West Virginia, Eastern Grant, Eastern Mineral, Hampshire, Hardy, and Morgan Counties.
WHEN…For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from 11 AM to 9 PM EDT Monday. For the third Heat Advisory, from 11 AM to 9 PM EDT Tuesday.
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.