Extreme Heat Warning Issued In VA, Will Feel Like 110 Degrees

Dangerous heat and humidity is expected in the Washington, D.C., region Monday with high temperatures approaching 100 degrees in the forecast, the National Weather Service said. Across much of Northern and central Virginia, the dangerous heat and humidity will make it feel like 110 degrees outdoors.

The summer blast-furnace has prompted warnings from the National Weather Service: An extreme heat warning is in effect from 11 a.m. until 9 p.m. Monday and will again be in place from 11 a.m. to 9 p.m. Tuesday.

Both days the NWS said heat index values up to 110 expected amid "dangerously hot conditions."

"Heat related illnesses increase significantly during extreme heat and high humidity events," the Weather Service said. "Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes."

Areas included in the extreme heat warning are: the District of Columbia, Fairfax, Arlington, Falls Church, Alexandria, Stafford, Spotsylvania, King George, Fauquier, Loudoun, Prince William, Manassas and Manassas Park.

Chances for showers and thunderstorms arrive late Wednesday and extend through the weekend. By the end of the week, storms will knock high temperatures down to the upper 80s and low 90.

The Washington Post's Capital Weather Gang said an extreme heat watch may be issued for Wednesday also, with humidity making it feel like 115 degrees.

"Limit time outdoors — near-record highs today," the Post said. "Skies are a bit hazy, but it’s overall sunny. Any stray shower or storm would be very brief. Adding in dew points around 70 to 75, it may feel like 105 to 115 degrees to our skin as sweat evaporation can no longer cool us. Minimize outdoor time, avoid strenuous activity, hydrate and use sunblock."

Forecasters say it will be humid over the weekend, but not as oppressive as the start to the work week.

Temperatures in at least three dozen states will be subjected to blistering heat, according to AccuWeather.

As temperatures traditionally drop at night, the private forecast service advised hot summer days could become hot summer nights along the East Coast.

Here's the forecast for Northern Virginia from the National Weather Service:

Monday: Sunny and hot, with a high near 99. Heat index values as high as 110. Northwest wind 5 to 7 mph.

Monday Night: Mostly clear, with a low around 77. Light northwest wind.

Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 109. Northwest wind 3 to 6 mph.

Tuesday Night: Mostly clear, with a low around 76. West wind around 5 mph becoming calm in the evening.

Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.

Wednesday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 50%.

Thursday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.

Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 91. Chance of precipitation is 60%.

Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.

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