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Extreme Heat Warning
ActiveSt. Clair; Monroe; Jefferson
Status
In Progress
Started about 1 hour ago
Ends
Issued
Severity
Severe
Urgency
Expected
Certainty
Likely
Details
* WHAT...Dangerously hot conditions with heat index values up to 106.
* WHERE...In Illinois, Monroe IL and Saint Clair IL Counties. In Missouri, Jefferson MO County.
* WHEN...Until 7 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Data from the National Weather Service
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