WHAT
For the Extreme Heat Warning, a dangerous combination of oppressively humid and hot conditions with heat index values between 100 to 110 expected. For the Extreme Heat Watch, continued dangerously hot conditions possible with heat index values potentially between 100 to 110.
WHERE
Portions of north central, northwest, and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri.
WHEN
For the Extreme Heat Warning, from 11 AM to 9 PM CDT Sunday. For the Extreme Heat Watch, from Sunday evening through Monday evening.
IMPACTS
Heat related illnesses increase significantly during extreme heat and high humidity events.
ADDITIONAL DETAILS
Little relief is expected Sunday night with low temperatures in the mid to upper 70s.
PRECAUTIONARY/PREPAREDNESS ACTIONS
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.
