Severe Thunderstorm Watch — Clay County, Iowa
Conditions favor the development of severe thunderstorms in and near the watch area.
Current Status
⛈️ Active: Severe Thunderstorm Watch
Severe Thunderstorm Watch issued September 1 at 11:49PM CDT until September 2 at 5:00AM CDT by NWS Sioux Falls SD
SEVERE THUNDERSTORM WATCH 640 REMAINS VALID UNTIL 5 AM CDT WEDNESDAY FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 11 COUNTIES IN NORTHWEST IOWA BUENA VISTA CHEROKEE CLAY DICKINSON LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX IN WEST CENTRAL IOWA IDA WOODBURY IN MINNESOTA THIS WATCH INCLUDES 3 COUNTIES IN SOUTHWEST MINNESOTA COTTONWOOD JACKSON NOBLES IN NEBRASKA THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST NEBRASKA DAKOTA DIXON IN SOUTH DAKOTA THIS WATCH INCLUDES 1 COUNTY IN SOUTHEAST SOUTH DAKOTA UNION THIS INCLUDES THE CITIES OF ALCESTER, ALLEN, ARNOLDS PARK, BATTLE CREEK, BERESFORD, CHEROKEE, ELK POINT, GEORGE, HARTLEY, HAWARDEN, HOLSTEIN, HULL, IDA GROVE, INWOOD, JACKSON, JEFFERSON, LAKEFIELD, LARCHWOOD, LE MARS, MILFORD, MOUNTAIN LAKE, NORTH SIOUX CITY, ORANGE CITY, PONCA, ROCK RAPIDS, ROCK VALLEY, SANBORN, SHELDON, SIBLEY, SIOUX CENTE
Effective September 2, 2026 at 12:49 AM ET · Expires September 2, 2026 at 6:00 AM ET
Event Details
Event Type
Severe Thunderstorm Watch
Severity
severe
Issued By
NWS Sioux Falls SD
Expires
September 2, 2026 at 6:00 AM ET
Last Checked
1 minute ago
Also In Effect For
This same Severe Thunderstorm Watch also covers:
Other Active Alerts in Iowa
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Severe Thunderstorm Watch Alerts for Clay County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Watch mean for Clay County, Iowa?
Conditions favor the development of severe thunderstorms in and near the watch area.
Is this Severe Thunderstorm Watch currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire September 2, 2026 at 6:00 AM ET.
How do I get notified about Severe Thunderstorm Watch alerts for Clay County?
Download StormCast free on Google Play and set Clay County, Iowa as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Severe Thunderstorm Watch is also in effect for Buena Vista County, Union County, O'Brien County, Nobles County, Osceola County, Jackson County, Dixon County, Cherokee County, Woodbury County, Ida County, Sioux County, Lyon County, Plymouth County, Dickinson County, Cottonwood County, Dakota County.