886
WWUS73 KDVN 120618
NPWDVN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
118 AM CDT WED AUG 12 2026
IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-121730-
/O.NEW.KDVN.HT.Y.0008.260812T1700Z-260813T0100Z/
JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-HENDERSON-WARREN-
HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF MOUNT PLEASANT, CARTHAGE, MEMPHIS, FORT
MADISON, MACOMB, MONMOUTH, BURLINGTON, OQUAWKA, KAHOKA, KEOSAUQUA,
AND FAIRFIELD
118 AM CDT WED AUG 12 2026
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING...
* WHAT...HEAT INDEX VALUES UP TO 105 EXPECTED.
* WHERE...PORTIONS OF WEST CENTRAL ILLINOIS, SOUTHEAST IOWA, AND
NORTHEAST MISSOURI.
* WHEN...FROM NOON TODAY TO 8 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...HEAT INDICES MAY BRIEFLY EXCEED 105 DEGREES IN
SOME AREAS. 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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