⚠️ Severe Thunderstorm Watch – Adair, IA; Adams, IA; Audubon, IA; Boone, IA; Cass, IA; Clarke, IA; Dallas, IA; Decatur, IA; Greene, IA; Guthrie, IA; Madison, IA; Polk, IA; Ringgold, IA; Taylor, IA; Union, IA; Warren, IA – Sunday, September 6, 2026

Severe Thunderstorm Watch issued September 6 at 4:45PM CDT until September 6 at 10:00PM CDT by NWS Des Moines IA

Details

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
661 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN IOWA THIS WATCH INCLUDES 16 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 GREENE GUTHRIE

THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON,
BAYARD, BEDFORD, BOONE, CARLISLE, CASEY, CORNING, CRESTON,
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 WIND GUSTS TO 70 MPH POSSIBLE.
ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE.

PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : <05%
PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : <02%
PROB OF 10 OR MORE SEVERE WIND EVENTS : 40%
PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 20%
PROB OF 10 OR MORE SEVERE HAIL EVENTS : 30%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 20%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 80%
MEAN STORM MOTION /MPH/ : E 15

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.