The National Weather Service has issued an Extreme Heat Watch for Calvert and St. Mary’s counties from Thursday morning through Friday evening. Heat index values could reach as high as 115 degrees, creating dangerous conditions across Southern Maryland.
The watch also includes portions of Charles County. Forecasters warn that dangerously hot conditions combined with high humidity will significantly increase the risk of heat-related illnesses.
Impacts from extreme heat can include heat exhaustion and heat stroke, particularly for vulnerable populations such as the elderly, children and those with pre-existing health conditions. Outdoor workers and people without access to air conditioning face heightened risks.
Residents are urged to take precautions by drinking plenty of fluids, staying in air-conditioned spaces when possible, avoiding direct sun exposure and checking on relatives and neighbors. Lightweight and loose-fitting clothing is recommended, and strenuous activities should be limited to early morning or evening hours.
The Occupational Safety and Health Administration advises outdoor workers to take frequent rest breaks in shaded or air-conditioned areas. Anyone showing signs of heat-related illness should be moved to a cool, shaded location immediately. Heat stroke is a medical emergency requiring a call to 911.
Southern Maryland’s coastal location and typical summer humidity can make heat feel even more oppressive. The combination of high temperatures and moisture reduces the body’s ability to cool itself through sweating, increasing danger.
Local emergency management officials and health departments often activate cooling centers during such events. Residents without air conditioning should seek out public facilities or community resources if needed.
The heat watch comes as the region enters the heart of summer. High temperatures are common, but the forecasted heat index values represent extreme conditions that require proactive preparation.
Power companies may see increased demand for electricity as residents run air conditioners continuously. Officials remind people to have backup plans in case of power outages.
The National Weather Service will continue monitoring conditions and may issue additional warnings or advisories as the event approaches. Residents should stay informed through local media and official alert systems.
For those planning outdoor activities, rescheduling or taking extra precautions is strongly advised. Hydration, shade, and rest are essential during periods of extreme heat.
Southern Maryland communities have experience with summer heat, but this watch serves as a reminder to prioritize safety. Vulnerable individuals and outdoor workers should be especially cautious.
The Extreme Heat Watch is in effect for Thursday morning through Friday evening. Conditions may remain hot and humid beyond that period, so continued awareness is important.
