Active Weather Alerts
Extreme Heat Watch
Issued: 5:03 AM Jun. 22, 2025 – National Weather Service
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * WHAT...For the Heat Advisory, heat index values up to 105 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible. * WHERE...In Maryland, Northwest Montgomery and Frederick MD Counties. In Virginia, Eastern Loudoun and Western Loudoun Counties. * WHEN...For the Heat Advisory, from noon today to 8 PM EDT this evening. For the Extreme Heat Watch, from Monday morning through Monday 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. &&
Heat Advisory
Issued: 5:03 AM Jun. 22, 2025 – National Weather Service
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * WHAT...For the Heat Advisory, heat index values up to 105 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible. * WHERE...In Maryland, Northwest Montgomery and Frederick MD Counties. In Virginia, Eastern Loudoun and Western Loudoun Counties. * WHEN...For the Heat Advisory, from noon today to 8 PM EDT this evening. For the Extreme Heat Watch, from Monday morning through Monday 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. &&
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