Active Weather Alerts
Severe Thunderstorm Watch
Issued: 2:21 AM Mar. 31, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 77 IN EFFECT UNTIL 3 AM CDT TUESDAY FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 16 COUNTIES IN CENTRAL IOWA BOONE DALLAS JASPER MARSHALL POLK POWESHIEK STORY TAMA IN SOUTH CENTRAL IOWA MADISON MAHASKA MARION WARREN IN SOUTHWEST IOWA ADAIR CASS IN WEST CENTRAL IOWA AUDUBON GUTHRIE THIS INCLUDES THE CITIES OF ADAIR, ADEL, AMES, ATLANTIC, AUDUBON, BAYARD, BOONE, CARLISLE, CASEY, DES MOINES, DYSART, EARLHAM, EXIRA, FONTANELLE, GLADBROOK, GREENFIELD, GRINNELL, GUTHRIE CENTER, INDIANOLA, KNOXVILLE, MARSHALLTOWN, NEWTON, NORWALK, OSKALOOSA, PANORA, PELLA, PERRY, STUART, TAMA, TOLEDO, TRAER, WAUKEE, AND WINTERSET. * PRIMARY THREATS INCLUDE... SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE. ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 10% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 05% PROB OF 10 OR MORE SEVERE WIND EVENTS : 30% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 10% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 50% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 80% MEAN STORM MOTION /MPH/ : E 35
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