Maryland Severe Extreme Heat Watch | Effective 06/30/2026 00:03

Headline: 
Extreme Heat Watch issued June 30 at 3:03AM EDT until July 3 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
June 30, 2026 - 12:03am
Expires: 
June 30, 2026 - 8:15am
Description: 
* WHAT...Dangerously hot conditions with heat index values up to 115 possible. * WHERE...Calvert and St. Marys Counties. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Instruction: 
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.
Area Description: 
St. Marys; Calvert
Forcast Office: 
NWS Baltimore MD/Washington DC