Heat Advisory Thursday for DC Metro Area: National Weather Service

The National Weather Service has issued a Heat Advisory Thursday for the entire DC metro region.

The combination of high temperatures and high humidity will combine to create heat index values, the "feels like" temperature, hitting 105 degrees Thursday, according to the weather service. Temperatures will reach highs in the mid-90s.

There is a risk of heat-related illness for those without air-conditioning or those who remain outdoors for an extended period, the weather service warned in its Advisory, issued Thursday at about 10:30 a.m.

Residents are asked to reschedule strenuous activities to early morning or evening hours, wear lightweight and loose-fitting clothing when possible and to drink plenty of water.

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; if someone is experiencing heat stroke call 9-1-1, the weather service advises.

PHOTOS: Shutterstock image; National Weather Service map shows area in orange under heat advisory Thursday.