06/11/2026
Heat Advisory in Effect as Severe Thunderstorm Risk Increases Across Region
The National Weather Service Baltimore/Washington has issued a Heat Advisory for portions of Maryland, the District of Columbia, and northern Virginia, including areas near and east of the Interstate 95 corridor. The advisory remains in effect until 8 p.m. today, Thursday, June 11, 2026.
Heat index values are expected to reach up to 105 degrees, creating conditions that may lead to heat-related illnesses, especially for older adults, young children, outdoor workers, athletes, and anyone without access to air conditioning.
Residents are urged to drink plenty of water, stay in air-conditioned spaces when possible, avoid direct sunlight, and check on relatives, neighbors, and others who may be more vulnerable to the heat. Outdoor activity should be limited during the hottest part of the day, and strenuous work or exercise should be scheduled for the early morning or evening when conditions are cooler.
Anyone working outside should take frequent breaks in shaded or air-conditioned areas and wear lightweight, loose-fitting clothing. Symptoms of heat exhaustion may include heavy sweating, weakness, dizziness, nausea, headache, or muscle cramps. Anyone experiencing these symptoms should move to a cooler location, rest, and drink water.
Heat stroke is a medical emergency. Warning signs may include confusion, fainting, seizures, hot skin, or a very high body temperature. Call 911 immediately if heat stroke is suspected.
In addition to the heat, the National Weather Service reports that scattered thunderstorms may develop late this afternoon through the evening. Some storms could produce damaging wind gusts and spotty hail. Additional rounds of thunderstorms are possible Friday afternoon and evening, with some storms potentially becoming severe.
Residents should monitor local weather conditions, secure outdoor items that could be blown around by strong winds, and be prepared to move indoors quickly if storms approach. Never drive through flooded roadways, and avoid using corded electrical devices during thunderstorms.
Community members are encouraged to stay weather-aware, have multiple ways to receive emergency alerts, and follow local public safety agencies for updates throughout the afternoon and evening.