926
WWUS73 KLSX 191751
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
1251 PM CDT SAT SEP 19 2026
ILZ064-069-070-074-079-100>102-MOZ047>049-059>065-072>075-084-085-
099-200100-
/O.CON.KLSX.HT.Y.0012.000000T0000Z-260920T0100Z/
BOND IL-CLINTON IL-MARION IL-WASHINGTON IL-RANDOLPH IL-MADISON IL-
SAINT CLAIR IL-MONROE IL-MONITEAU MO-COLE MO-OSAGE MO-
GASCONADE MO-WARREN MO-SAINT CHARLES MO-FRANKLIN MO-
SAINT LOUIS MO-SAINT LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF CENTRALIA, SALEM, CHESTER, SPARTA, ALTON,
EDWARDSVILLE, BELLEVILLE, CAHOKIA, JEFFERSON CITY, SAINT CHARLES,
WASHINGTON, UNION, SULLIVAN, SAINT LOUIS, AND FARMINGTON
1251 PM CDT SAT SEP 19 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 101.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ILLINOIS AND
CENTRAL, EAST CENTRAL, AND SOUTHEAST MISSOURI.
* WHEN...UNTIL 8 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
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.
MAPLES
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