Virginia Weather Forecast: Dangerous Heat Friday, Weekend Worse

The heat will, again, reach dangerous levels on Friday, with the National Weather Service issuing a heat advisory from noon until 8 p.m. And the weekend forecast will keep the temperatures high.

The heat index, or "feels like" temperatures, could reach 105 degrees on Friday and possibly exceed 110 degrees on Saturday, according to the weather service.

Intense heat can cause heat-related illness for those without air-conditioning or those who are outside for too long.

Heat tips include:

• Rescheduling strenuous activity to early morning or evening
• Knowing the signs and symptoms of heat exhaustion and heat stroke
• Wearing light and loose fitting clothing
• Drinking plenty of water

Those working outside should take frequent breaks in the shade or in an air-conditioned environment.

"Heat stroke is an emergency - call 911," the weather service warns.

The weekend forecast:

Friday: Mostly sunny, with a high near 96. Heat index values as high as 105. Southwest wind 7 to 9 mph.

Saturday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 105. Southwest wind 7 to 9 mph. Chance of precipitation is 20%.

Sunday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Southwest wind 5 to 9 mph. Chance of precipitation is 20%.

Monday: L A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Chance of precipitation is 30%.