Headline:
Severe Thunderstorm Watch issued August 12 at 2:27AM CDT until August 12 at 10:00AM CDT by NWS Des Moines IA
Event:
Severe Thunderstorm Watch
Urgency:
Future
Effective:
August 12, 2026 - 12:27am
Expires:
August 12, 2026 - 8:00am
Description:
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
573 IN EFFECT UNTIL 10 AM CDT THIS MORNING FOR THE FOLLOWING
AREAS
IN IOWA THIS WATCH INCLUDES 18 COUNTIES
IN CENTRAL IOWA
BOONE DALLAS POLK
IN SOUTH CENTRAL IOWA
CLARKE DECATUR MADISON
RINGGOLD UNION WARREN
IN SOUTHWEST IOWA
ADAIR ADAMS CASS
TAYLOR
IN WEST CENTRAL IOWA
AUDUBON CARROLL CRAWFORD
GREENE GUTHRIE
THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON,
BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CORNING,
CRESTON, DENISON, DES MOINES, EARLHAM, EXIRA, FONTANELLE,
GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LAMONI, LENOX,
LEON, MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY,
STUART, WAUKEE, AND WINTERSET.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
TO 80 MPH POSSIBLE.
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE.
PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : = 2 INCHES : 10%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : >95%
MEAN STORM MOTION /MPH/ : E 45
Area Description:
Adair, IA; Adams, IA; Audubon, IA; Boone, IA; Carroll, IA; Cass, IA; Clarke, IA; Crawford, IA; Dallas, IA; Decatur, IA; Greene, IA; Guthrie, IA; Madison, IA; Polk, IA; Ringgold, IA; Taylor, IA; Union, IA; Warren, IA
Forcast Office:
NWS Des Moines IA
Sender:
w-nws.webmaster@noaa.gov