Active Weather Alerts
Severe Thunderstorm Warning
Issued: 2:25 PM Jun. 11, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR BLACK HAWK...BREMER...NORTHEASTERN GRUNDY AND EASTERN BUTLER COUNTIES... At 925 AM CDT, a severe thunderstorm was located over Dunkerton, or 8 miles east of Waterloo, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Waterloo, Cedar Falls, Waverly, Evansdale, Jesup, Hudson, Sumner, Denver, Tripoli, Shell Rock, Elk Run Heights, Waterloo Municipal Airport, Crossroads Mall, Uni-Dome And McLeod Center, Janesville, Washburn, Dunkerton, Readlyn, Raymond, and Gilbertville. This includes Interstate 380 between mile markers 61 and 73. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Severe Thunderstorm Watch
Issued: 12:34 PM Jun. 11, 2026 – National Weather Service
SEVERE THUNDERSTORM WATCH 310 REMAINS VALID UNTIL 10 AM CDT THIS MORNING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 28 COUNTIES IN CENTRAL IOWA BOONE DALLAS GRUNDY HAMILTON HARDIN MARSHALL POLK STORY TAMA WEBSTER IN NORTHEAST IOWA BLACK HAWK IN SOUTH CENTRAL IOWA CLARKE DECATUR MADISON RINGGOLD UNION WARREN 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, AMES, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CEDAR FALLS, CONRAD, CORNING, CRESTON, DENISON, DES MOINES, DIKE, DYSART, EARLHAM, EARLY, ELDORA, EXIRA, FONTANELLE, FORT DODGE, GLADBROOK, GREENFIELD, GRUNDY CENTER, GUTHRIE CENTER, INDIANOLA, IOWA FALLS, JEFFERSON, LAKE CITY, LAKE VIEW, LAMONI, LENOX, LEON, MANSON, MARSHALLTOWN, MOUNT AYR, NEW MARKET, NORWALK, ODEBOLT, OSCEOLA, PANORA, PERRY, POMEROY, REINBECK, ROCKWELL CITY, SAC CITY, SCHALLER, STUART, TAMA, TOLEDO, TRAER, WALL LAKE, WATERLOO, WAUKEE, WEBSTER CITY, WELLSBURG, AND WINTERSET. * PRIMARY THREATS INCLUDE... SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER POSSIBLE. ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE. A TORNADO OR TWO POSSIBLE.
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