HEAT ADVISORY
HEAT ADVISORY ISSUED JULY 18 AT 3:04AM CDT UNTIL JULY 21 AT 7:00PM CDT
Effective: 2026-07-18 03:04:00
Expires: 2026-07-21 19:00:00
Issued by: NWS St Louis MO
Alert Text
* WHAT...HEAT INDEX VALUES UP TO 105 EXPECTED. * WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ILLINOIS AND CENTRAL, EAST CENTRAL, AND SOUTHEAST MISSOURI.
* WHEN...FROM NOON TODAY TO 7 PM CDT TUESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT ILLNESSES.
More Information
Target Area
CLINTON, WASHINGTON, RANDOLPH, MADISON, ST. CLAIR, MONROE, BOONE, MONITEAU, COLE, OSAGE, CALLAWAY, MONTGOMERY, GASCONADE, WARREN, ST. CHARLES, FRANKLIN, ST. LOUIS, ST. LOUIS CITY, JEFFERSON, CRAWFORD, WASHINGTON, ST. FRANCOIS, STE. GENEVIEVE, IRON, MADISON, REYNOLDS
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