SunTuesday is forecast to be the hottest day of 2015 so far, the National Weather Service says.

A heat advisory for Reston, Northern Virginia and the DC area is in effect from 1 to 7 p.m. as afternoon temperatures may hit 99 degrees. With the heat index, it will feel like 105, so take precautions.

A heat advisory means a period of high temperatures is expected. The combination of high heat and high humidity creates a situation in which heat illnesses are possible, says the NWS.

To avoid head exhaustion and heat stroke:

  • If possible, reschedule outdoor strenuous activities to early morning or evening.
  • Wear lightweight and loose-fitting clothes.
  • Drink plenty of water.

Relief is in sight late in the day, when thunderstorms are expected to roll through Reston, bringing with them slightly lower temperatures for Wednesday.


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