486
WWUS73 KDVN 121556
NPWDVN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1056 AM CDT WED AUG 12 2026
IAZ087>089-ILZ025-026-121700-
/O.CAN.KDVN.HT.Y.0008.260812T1700Z-260813T0100Z/
JEFFERSON-HENRY IA-DES MOINES-HENDERSON-WARREN-
INCLUDING THE CITIES OF MONMOUTH, BURLINGTON, MOUNT PLEASANT,
OQUAWKA, AND FAIRFIELD
1056 AM CDT WED AUG 12 2026
..HEAT ADVISORY IS CANCELLED
CLOUD COVER AND PERSISTENT SHOWERS AND THUNDERSTORMS WILL RESULT IN
COOLER BUT STILL HUMID CONDITIONS. PEAK AFTERNOON HEAT INDICES OF 90
TO 95 ARE EXPECTED.
IAZ098-099-ILZ034-035-MOZ009-010-130000-
/O.CON.KDVN.HT.Y.0008.260812T1700Z-260813T0100Z/
VAN BUREN-LEE-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF KAHOKA, MACOMB, KEOSAUQUA, FORT MADISON,
CARTHAGE, AND MEMPHIS
1056 AM CDT WED AUG 12 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES AROUND 100 EXPECTED.
* WHERE...IN ILLINOIS, HANCOCK AND MCDONOUGH COUNTIES. IN IOWA, LEE
AND VAN BUREN COUNTIES. IN MISSOURI, CLARK AND SCOTLAND COUNTIES.
* WHEN...UNTIL 8 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...THUNDERSTORMS AND STORM OUTFLOW MAY ALSO
INTERRUPT THE HIGH 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.
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