Weather Alerts For Glenn Dale, MD
Extreme Heat Watch
-# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING # DETAILS -------------------- WHAT For the Heat Advisory, heat index values up to 106 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 112 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. ISSUED AT Tuesday, June 30, 2026 at 3:03 AM EDT ISSUED BY National Weather Service Baltimore MD/Washington DC HEADER URGENT - WEATHER MESSAGE # 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. 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! Call 9 1 1. # AREAS AFFECTED -------------------- Central and Southeast Howard, Madison, Northwest Prince William, Southern Baltimore, Anne Arundel, Arlington/Falls Church/Alexandria, Carroll, Cecil, Central and Southeast Montgomery, Central and Southeast Prince William/Manassas/Manassas Park, Charles, Culpeper, District of Columbia, Eastern Loudoun, Fairfax, Frederick, King George, Northern Baltimore, Northern Fauquier, Northwest Harford, Northwest Howard, Northwest Montgomery, Orange, Prince Georges, Rappahannock, Southeast Harford, Southern Fauquier, Spotsylvania, Stafford, Western Loudoun
Heat Advisory
-# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING # DETAILS -------------------- WHAT For the Heat Advisory, heat index values up to 106 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 112 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. ISSUED AT Tuesday, June 30, 2026 at 3:03 AM EDT ISSUED BY National Weather Service Baltimore MD/Washington DC HEADER URGENT - WEATHER MESSAGE # 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. 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! Call 9 1 1. # AREAS AFFECTED -------------------- Central and Southeast Howard, Madison, Northwest Prince William, Southern Baltimore, Anne Arundel, Arlington/Falls Church/Alexandria, Carroll, Cecil, Central and Southeast Montgomery, Central and Southeast Prince William/Manassas/Manassas Park, Charles, Culpeper, District of Columbia, Eastern Loudoun, Fairfax, Frederick, King George, Northern Baltimore, Northern Fauquier, Northwest Harford, Northwest Howard, Northwest Montgomery, Orange, Prince Georges, Rappahannock, Southeast Harford, Southern Fauquier, Spotsylvania, Stafford, Western Loudoun
