Extreme Heat Warning for District of Columbia; Frederick; Carroll +32 more
What: Dangerously hot conditions each afternoon with heat index values between 110 to 115 expected. Impacts: Heat related illnesses increase significantly during extreme heat and high humidity events. Where: Washington DC, and portions of central, north...
Official alert brief
WHAT
Dangerously hot conditions each afternoon with heat index values between 110 to 115 expected.
WHERE
Washington DC, and portions of central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia.
WHEN
For the first Extreme Heat Warning, until 9 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 9 PM EDT Saturday.
IMPACTS
Heat related illnesses increase significantly during extreme heat and high humidity events.
ADDITIONAL DETAILS
Early morning low temperatures in the 70s and 80s combined with oppressive humidity will result in little to no overnight relief. Prolonged excessive heat may impact power, water, and transportation systems. Heat index values around 100 are possible again Sunday afternoon.
Instructions
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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.