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Extreme Heat Watch

Active

Clinton; Washington; Randolph; Madison; St. Clair

Starts Aug 31, 12:00 PM CDT

Ends Sep 4, 8:00 PM CDT

Issued Aug 30, 12:27 PM CDT

Severity Severe

Urgency Future

Certainty Likely

Details

* WHAT...Dangerously hot conditions with heat index values of 102 to 108 degrees, and morning lows from 75 to 80 degrees, possible for several consecutive days.

* WHERE...In Illinois, Clinton IL, Washington IL, Madison IL, Monroe IL, Randolph IL, and Saint Clair IL Counties. In Missouri, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties.

* WHEN...From Monday afternoon through Friday evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...In addition to near-record afternoon temperatures, warm morning lows may provide little relief, especially Wednesday through Friday.

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Data from the National Weather Service

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