071
WWUS73 KLSX 180758
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
258 AM CDT FRI SEP 18 2026
ILZ058>060-065-098-099-MOZ041-050>052-182300-
/O.CON.KLSX.HT.Y.0012.000000T0000Z-260919T0100Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-FAYETTE IL-CALHOUN IL-JERSEY
IL-BOONE MO-CALLAWAY MO-MONTGOMERY MO-LINCOLN MO-
INCLUDING THE CITIES OF LITCHFIELD, FULTON, VANDALIA, AND COLUMBIA
258 AM CDT FRI SEP 18 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 105.
* WHERE...IN ILLINOIS, FAYETTE IL, MONTGOMERY IL, CALHOUN IL, GREENE
IL, JERSEY IL, AND MACOUPIN IL COUNTIES. IN MISSOURI, BOONE MO,
CALLAWAY MO, LINCOLN MO, AND MONTGOMERY MO COUNTIES.
* 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. YOUNG CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY
CIRCUMSTANCES. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION
AND HEAT STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE. TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
ILZ064-069-070-074-079-100>102-MOZ047>049-059>065-072>075-084-085-
099-182300-
/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 UNION, CAHOKIA, SPARTA, SAINT LOUIS, SAINT
CHARLES, WASHINGTON, SALEM, CHESTER, FARMINGTON, EDWARDSVILLE, ALTON,
BELLEVILLE, CENTRALIA, JEFFERSON CITY, AND SULLIVAN
258 AM CDT FRI SEP 18 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SATURDAY
* WHAT...HEAT INDEX VALUES UP TO 107.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ILLINOIS AND
CENTRAL, EAST CENTRAL, AND SOUTHEAST MISSOURI.
* WHEN...UNTIL 8 PM CDT SATURDAY.
* 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. YOUNG CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY
CIRCUMSTANCES. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION
AND HEAT STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE. TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
PEOPLE IN THE SAINT LOUIS METROPOLITAN AREA CAN GET INFORMATION ABOUT
COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE EXCESSIVE HEAT BY
CALLING THE UNITED WAY OF GREATER SAINT LOUIS AT 800-427-4626, OR IF
CALLING FROM A LAND LINE PHONE DIAL 2-1-1. YOU CAN ALSO CALL COOL
DOWN SAINT LOUIS AT 314-241-7668.
KIMBLE
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