151
WWUS73 KLSX 181848
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
148 PM CDT MON AUG 18 2025
ILZ064-065-069-070-074-079-100>102-MOZ047>049-059>065-072>075-084-
085-099-191000-
/O.EXT.KLSX.HT.Y.0003.000000T0000Z-250820T0100Z/
BOND IL-FAYETTE 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 CHESTER, ALTON, SALEM, BELLEVILLE, SAINT
CHARLES, UNION, SAINT LOUIS, FARMINGTON, SPARTA, WASHINGTON,
CAHOKIA, VANDALIA, CENTRALIA, JEFFERSON CITY, EDWARDSVILLE, AND
SULLIVAN
148 PM CDT MON AUG 18 2025
..HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT TUESDAY
* WHAT...HEAT INDEX VALUES UP TO 104.
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ILLINOIS AND
CENTRAL, EAST CENTRAL, AND SOUTHEAST MISSOURI.
* WHEN...UNTIL 8 PM CDT TUESDAY.
* 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.
ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-190100-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-250819T0100Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO-MONROE
MO-RALLS MO-PIKE MO-BOONE MO-AUDRAIN MO-CALLAWAY MO-MONTGOMERY MO-
LINCOLN MO-
INCLUDING THE CITIES OF HANNIBAL, COLUMBIA, LITCHFIELD,
PITTSFIELD, MEXICO, FULTON, MOUNT STERLING, BOWLING GREEN, AND
QUINCY
148 PM CDT MON AUG 18 2025
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 107.
* WHERE...PORTIONS OF SOUTH CENTRAL, SOUTHWEST, AND WEST CENTRAL
ILLINOIS AND CENTRAL, EAST CENTRAL, AND NORTHEAST 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. 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.
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