Active Weather Alerts
Severe Thunderstorm Watch
Issued: 12:28 AM Jun. 16, 2024 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 421 IN EFFECT UNTIL 2 AM CDT SUNDAY FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 30 COUNTIES IN CENTRAL IOWA BOONE DALLAS HAMILTON HARDIN JASPER MARSHALL POLK STORY WEBSTER IN NORTHWEST IOWA POCAHONTAS IN SOUTH CENTRAL IOWA CLARKE DECATUR LUCAS MADISON MARION RINGGOLD UNION WARREN WAYNE IN SOUTHWEST IOWA ADAIR ADAMS CASS TAYLOR IN WEST CENTRAL IOWA AUDUBON CALHOUN CARROLL CRAWFORD GREENE GUTHRIE SAC THIS INCLUDES THE CITIES OF ACKLEY, ADAIR, ADEL, ALLERTON, AMES, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CHARITON, CORNING, CORYDON, CRESTON, DENISON, DES MOINES, EARLHAM, EARLY, ELDORA, EXIRA, FONDA, FONTANELLE, FORT DODGE, GILMORE CITY, GREENFIELD, GUTHRIE CENTER, HUMESTON, INDIANOLA, IOWA FALLS, JEFFERSON, KNOXVILLE, LAKE CITY, LAKE VIEW, LAMONI, LAURENS, LENOX, LEON, MANSON, MARSHALLTOWN, MOUNT AYR, NEW MARKET, NEWTON, NORWALK, ODEBOLT, OSCEOLA, PANORA, PELLA, PERRY, POCAHONTAS, POMEROY, ROCKWELL CITY, ROLFE, SAC CITY, SCHALLER, SEYMOUR, STUART, WALL LAKE, WAUKEE, WEBSTER CITY, AND WINTERSET. * PRIMARY THREATS INCLUDE... SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75 MPH POSSIBLE. ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE. A TORNADO OR TWO POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 20% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 05% PROB OF 10 OR MORE SEVERE WIND EVENTS : 50% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 30% 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 : 70% MEAN STORM MOTION /MPH/ : NE 40
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