070
WWUS73 KLSX 200703
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
203 AM CDT FRI JUN 20 2025
ILZ058>060-064-065-069-070-074-079-095>098-MOZ019-027-035-036-051-
052-059-060-062-072>075-084-085-099-202215-
/O.EXB.KLSX.HT.Y.0001.250621T1700Z-250625T0200Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-LEWIS MO-MARION MO-RALLS MO-PIKE MO-MONTGOMERY MO-
LINCOLN MO-GASCONADE MO-WARREN MO-FRANKLIN MO-CRAWFORD MO-
WASHINGTON MO-SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF WASHINGTON, SALEM, VANDALIA, MOUNT
STERLING, PITTSFIELD, HANNIBAL, BOWLING GREEN, SULLIVAN,
CENTRALIA, QUINCY, FARMINGTON, SPARTA, CHESTER, LITCHFIELD, AND
UNION
203 AM CDT FRI JUN 20 2025
..HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 9 PM CDT TUESDAY
* WHAT...PROLONGED HEAT INDEX VALUES EXCEEDING 100 DEGREES ARE
EXPECTED.
* WHERE...PORTIONS OF SOUTH CENTRAL, SOUTHWEST, AND WEST CENTRAL
ILLINOIS AND EAST CENTRAL, NORTHEAST, AND SOUTHEAST MISSOURI.
* WHEN...FROM NOON SATURDAY TO 9 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.
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.
MOZ018-026-034-041-042-047>050-202215-
/O.CON.KLSX.HT.Y.0001.250620T1700Z-250625T0200Z/
KNOX MO-SHELBY MO-MONROE MO-BOONE MO-AUDRAIN MO-MONITEAU MO-COLE
MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF FULTON, COLUMBIA, JEFFERSON CITY, AND
MEXICO
203 AM CDT FRI JUN 20 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT
TUESDAY...
* WHAT...HEAT INDEX VALUES EXCEEDING 100 DEGREES ARE EXPECTED.
* WHERE...AUDRAIN MO, BOONE MO, CALLAWAY MO, COLE MO, MONITEAU MO,
OSAGE MO, KNOX MO, MONROE MO, AND SHELBY MO COUNTIES.
* WHEN...FROM NOON TODAY TO 9 PM CDT TUESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
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.
ILZ099>102-MOZ061-063>065-202215-
/O.CON.KLSX.XH.A.0001.250621T1700Z-250625T0200Z/
JERSEY IL-MADISON IL-SAINT CLAIR IL-MONROE IL-SAINT CHARLES MO-
SAINT LOUIS MO-SAINT LOUIS CITY MO-JEFFERSON MO-
INCLUDING THE CITIES OF ALTON, BELLEVILLE, SAINT LOUIS, SAINT
CHARLES, CAHOKIA, AND EDWARDSVILLE
203 AM CDT FRI JUN 20 2025
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 109
POSSIBLE.
* WHERE...IN ILLINOIS, JERSEY IL, MADISON IL, MONROE IL, AND SAINT
CLAIR IL COUNTIES. IN MISSOURI, JEFFERSON MO, SAINT CHARLES MO,
SAINT LOUIS CITY MO, AND SAINT LOUIS MO COUNTIES.
* WHEN...FROM SATURDAY AFTERNOON THROUGH TUESDAY 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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
IF YOU DO NOT HAVE AIR CONDITIONING IN YOUR HOME OR LACK SHELTER,
YOU CAN CALL 211 FOR ASSISTANCE LOCATING APPROPRIATE SHELTER FROM
THE HEAT.
JAJA
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page