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Waterloo, IA Severe Weather Alertstar_ratehome

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Location: Waterloo, IA
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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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