448
WWUS73 KDVN 042128
NPWDVN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
428 PM CDT FRI SEP 4 2026
IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-024>026-034-035-
MOZ009-010-050530-
/O.CON.KDVN.XH.W.0003.000000T0000Z-260906T0000Z/
IOWA-JOHNSON-CEDAR-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-
JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-ROCK ISLAND-MERCER-
HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF KAHOKA, MONMOUTH, KEOSAUQUA, TIPTON, MEMPHIS,
ALEDO, ROCK ISLAND, MOUNT PLEASANT, WASHINGTON, MOLINE, CARTHAGE,
OQUAWKA, BURLINGTON, MARENGO, MACOMB, IOWA CITY, BETTENDORF,
FAIRFIELD, MUSCATINE, FORT MADISON, SIGOURNEY, WAPELLO, AND DAVENPORT
428 PM CDT FRI SEP 4 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES OF 100 TO
110.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL ILLINOIS, EAST
CENTRAL AND SOUTHEAST IOWA, AND NORTHEAST MISSOURI.
* WHEN...UNTIL 7 PM CDT SATURDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
* ADDITIONAL DETAILS...THUNDERSTORMS AND STORM OUTFLOW MAY INTERRUPT
THE HEAT AT TIMES.
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.
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.
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.
ILZ016>018-050530-
/O.CON.KDVN.XH.W.0003.000000T0000Z-260906T0000Z/
HENRY IL-BUREAU-PUTNAM-
INCLUDING THE CITIES OF GENESEO, HENNEPIN, AND PRINCETON
428 PM CDT FRI SEP 4 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES OF 100 TO
110.
* WHERE...BUREAU, PUTNAM, AND HENRY IL COUNTIES.
* WHEN...UNTIL 7 PM CDT SATURDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
* ADDITIONAL DETAILS...THUNDERSTORMS AND STORM OUTFLOW MAY INTERRUPT
THE HEAT AT TIMES.
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.
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.
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.
IAZ040-051>053-066-ILZ009-050530-
/O.CON.KDVN.HT.Y.0009.000000T0000Z-260906T0000Z/
BUCHANAN-BENTON-LINN-JONES-CLINTON-WHITESIDE-
INCLUDING THE CITIES OF CLINTON, INDEPENDENCE, ANAMOSA, STERLING,
CEDAR RAPIDS, AND VINTON
428 PM CDT FRI SEP 4 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY
* WHAT...HEAT INDEX VALUES OF 100 TO 105.
* WHERE...IN ILLINOIS, WHITESIDE COUNTY. IN IOWA, BENTON, CLINTON,
JONES, LINN, AND BUCHANAN COUNTIES.
* WHEN...UNTIL 7 PM CDT SATURDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...THUNDERSTORMS AND STORM OUTFLOW MAY INTERRUPT
THE HEAT AT TIMES.
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.
IAZ041-042-054-ILZ001-002-007-050000-
/O.CON.KDVN.HT.Y.0009.000000T0000Z-260905T0000Z/
DELAWARE-DUBUQUE-JACKSON-JO DAVIESS-STEPHENSON-CARROLL-
INCLUDING THE CITIES OF MAQUOKETA, FREEPORT, DUBUQUE, MOUNT CARROLL,
GALENA, AND MANCHESTER
428 PM CDT FRI SEP 4 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES OF 100 TO 105.
* WHERE...IN ILLINOIS, CARROLL, JO DAVIESS, AND STEPHENSON COUNTIES.
IN IOWA, JACKSON, DELAWARE, AND DUBUQUE COUNTIES.
* WHEN...UNTIL 7 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...THUNDERSTORMS AND STORM OUTFLOW MAY INTERRUPT
THE HEAT AT TIMES.
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.
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.
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.
DC
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