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Severe · Severe Thunderstorm WatchActive alert

Severe Thunderstorm Watch issued September 1 at 3:52PM CDT until September 1

Affecting Lyon, IA; Plymouth, IA; Sioux, IA; Pipestone, MN; Rock, MN; Dixon, NE; Aurora, SD; Bon Homme, SD; Charles Mix, SD; Clay, SD; Davison, SD; Douglas, SD; Gregory, SD; Hanson, SD; Hutchinson, SD; Lake, SD; Lincoln, SD; McCook, SD; Miner, SD; Minnehaha, SD; Moody, SD; Sanborn, SD; Turner, SD; Union, SD; Yankton, SD

In effect until: Sep 2, 2026, 4:00 AM

Lyon, IA; Plymouth, IA; Sioux, IA; Pipestone, MN; Rock, MN; Dixon, NE; Aurora, SD; Bon Homme, SD; Charles Mix, SD; Clay, SD; Davison, SD; Douglas, SD; Gregory, SD; Hanson, SD; Hutchinson, SD; Lake, SD; Lincoln, SD; McCook, SD; Miner, SD; Minnehaha, SD; Moody, SD; Sanborn, SD; Turner, SD; Union, SD; Yankton, SD

Possible impact zone across 25 counties in IA, MN, NE and SD; conditions develop through 4:00 AM.

Go indoors and stay away from windows until the storm passes.

Read the original bulletin (official text)
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
639 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN IOWA THIS WATCH INCLUDES 3 COUNTIES

IN NORTHWEST IOWA

LYON                  PLYMOUTH              SIOUX

IN MINNESOTA THIS WATCH INCLUDES 2 COUNTIES

IN SOUTHWEST MINNESOTA

PIPESTONE             ROCK

IN NEBRASKA THIS WATCH INCLUDES 1 COUNTY

IN NORTHEAST NEBRASKA

DIXON

IN SOUTH DAKOTA THIS WATCH INCLUDES 19 COUNTIES

IN EAST CENTRAL SOUTH DAKOTA

LAKE                  MINER                 MOODY
SANBORN

IN SOUTH CENTRAL SOUTH DAKOTA

AURORA                CHARLES MIX           DOUGLAS
GREGORY

IN SOUTHEAST SOUTH DAKOTA

BON HOMME             CLAY                  DAVISON
HANSON                HUTCHINSON            LINCOLN
MCCOOK                MINNEHAHA             TURNER
UNION                 YANKTON

THIS INCLUDES THE CITIES OF ALCESTER, ALEXANDRIA, ALLEN, ARMOUR,
AVON, BERESFORD, BRIDGEWATER, BURKE, CANISTOTA, CANTON,
CENTERVILLE, CHANCELLOR, CLAYTON, CORSICA, DELMONT, ELK POINT,
EMERY, FLANDREAU, FREEMAN, GEORGE, GREGORY, HARRISBURG, HAWARDEN,
HOWARD, HULL, HURLEY, INWOOD, IRENE, JEFFERSON, LAKE ANDES,
LARCHWOOD, LE MARS, LENNOX, LUVERNE, MADISON, MARION, MARTY,
MENNO, MITCHELL, MONTROSE, NORTH SIOUX CITY, ORANGE CITY, ORLAND,
PARKER, PARKSTON, PIPESTONE, PLANKINTON, PLATTE, PONCA,
ROCK RAPIDS, ROCK VALLEY, SALEM, SCOTLAND, SIOUX CENTER,
SIOUX FALLS, SPRINGFIELD, STICKNEY, TABOR, TEA, TRIPP, TYNDALL,
VERMILLION, VIBORG, WAGNER, WAKEFIELD, WHITE LAKE, WOONSOCKET,
AND YANKTON.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™