323
WWUS73 KLSX 181906
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
206 PM CDT FRI JUL 18 2025
ILZ079-100>102-MOZ041-042-047>052-059>065-072>075-084-085-099-191015-
/O.NEW.KLSX.XH.W.0002.250719T1700Z-250724T0000Z/
RANDOLPH IL-MADISON IL-SAINT CLAIR IL-MONROE IL-BOONE MO-AUDRAIN
MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO-LINCOLN
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 SAINT CHARLES, EDWARDSVILLE, UNION, SAINT
LOUIS, FULTON, ALTON, MEXICO, JEFFERSON CITY, FARMINGTON,
WASHINGTON, BELLEVILLE, CHESTER, CAHOKIA, SULLIVAN, SPARTA, AND
COLUMBIA
206 PM CDT FRI JUL 18 2025
...EXTREME HEAT WARNING IN EFFECT FROM NOON SATURDAY TO 7 PM CDT
WEDNESDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 110
EXPECTED.
* WHERE...PORTIONS OF SOUTHWEST ILLINOIS AND CENTRAL, EAST CENTRAL,
AND SOUTHEAST MISSOURI.
* WHEN...FROM NOON SATURDAY TO 7 PM CDT WEDNESDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
ILZ058>060-064-065-069-070-074-095>099-MOZ018-019-026-027-034>036-
191015-
/O.NEW.KLSX.XH.A.0002.250721T1700Z-250724T0000Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON 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-
INCLUDING THE CITIES OF PITTSFIELD, MOUNT STERLING, HANNIBAL,
CENTRALIA, QUINCY, BOWLING GREEN, VANDALIA, LITCHFIELD, AND SALEM
206 PM CDT FRI JUL 18 2025
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
WEDNESDAY EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 108
POSSIBLE.
* WHERE...PORTIONS OF SOUTH CENTRAL, SOUTHWEST, AND WEST CENTRAL
ILLINOIS AND NORTHEAST MISSOURI.
* WHEN...FROM MONDAY AFTERNOON THROUGH WEDNESDAY EVENING.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
PFAHLER
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