Iowa, Nebraska, South Dakota Severe Severe Thunderstorm Watch | Effective 09/01/2026 19:51

Headline: 
Severe Thunderstorm Watch issued September 1 at 9:51PM CDT until September 2 at 5:00AM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Watch
Urgency: 
Future
Effective: 
September 1, 2026 - 7:51pm
Expires: 
September 2, 2026 - 3:00am
Description: 
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 640 UNTIL 5 AM CDT WEDNESDAY WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 639. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN IOWA THE NEW WATCH INCLUDES 6 COUNTIES IN NORTHWEST IOWA CHEROKEE LYON PLYMOUTH SIOUX IN WEST CENTRAL IOWA IDA WOODBURY IN NEBRASKA THE NEW WATCH INCLUDES 2 COUNTIES IN NORTHEAST NEBRASKA DAKOTA DIXON IN SOUTH DAKOTA THE NEW WATCH INCLUDES 1 COUNTY IN SOUTHEAST SOUTH DAKOTA UNION THIS INCLUDES THE CITIES OF ALCESTER, ALLEN, BATTLE CREEK, BERESFORD, CHEROKEE, ELK POINT, GEORGE, HAWARDEN, HOLSTEIN, HULL, IDA GROVE, INWOOD, JEFFERSON, LARCHWOOD, LE MARS, NORTH SIOUX CITY, ORANGE CITY, PONCA, ROCK RAPIDS, ROCK VALLEY, SIOUX CENTER, SIOUX CITY, SOUTH SIOUX CITY, AND WAKEFIELD.
Area Description: 
Cherokee, IA; Ida, IA; Lyon, IA; Plymouth, IA; Sioux, IA; Woodbury, IA; Dakota, NE; Dixon, NE; Union, SD
Forcast Office: 
NWS Sioux Falls SD
Sender: 
w-nws.webmaster@noaa.gov