573
WWUS73 KLSX 081644
NPWLSX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
1144 AM CDT MON JUN 8 2026
ILZ079-098>102-MOZ041-047>052-059>065-072>075-084-085-099-090745-
/O.NEW.KLSX.HT.Y.0001.260609T1700Z-260610T0300Z/
RANDOLPH IL-CALHOUN IL-JERSEY IL-MADISON IL-SAINT CLAIR IL-MONROE
IL-BOONE 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 SULLIVAN, SPARTA, ALTON, BELLEVILLE, CAHOKIA,
FULTON, UNION, COLUMBIA, JEFFERSON CITY, EDWARDSVILLE, FARMINGTON,
WASHINGTON, SAINT LOUIS, SAINT CHARLES, AND CHESTER
1144 AM CDT MON JUN 8 2026
..HEAT ADVISORY IN EFFECT FROM NOON TO 10 PM CDT TUESDAY
* WHAT...HEAT INDEX VALUES UP TO 108 EXPECTED.
* WHERE...PORTIONS OF SOUTHWEST ILLINOIS AND CENTRAL, EAST CENTRAL,
AND SOUTHEAST MISSOURI.
* WHEN...FROM NOON TO 10 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.
PFAHLER
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page