⚠️ Severe Thunderstorm Warning – Clay, IA; Dickinson, IA; Lyon, IA; O’Brien, IA; Osceola, IA; Sioux, IA – Sunday, June 28, 2026

Severe Thunderstorm Warning issued June 28 at 5:58AM CDT until June 28 at 7:00AM CDT by NWS Sioux Falls SD

Details

SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for…
Southeastern Lyon County in northwestern Iowa…
Osceola County in northwestern Iowa…
Western Dickinson County in northwestern Iowa…
Northeastern Sioux County in northwestern Iowa…
Northwestern Clay County in northwestern Iowa…
O’Brien County in northwestern Iowa…

* Until 700 AM CDT.

* At 557 AM CDT, severe thunderstorms were located along a line
extending from Matlock to near Hospers, moving east at 30 mph.

HAZARD…60 mph wind gusts and half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Severe thunderstorms will be near…
Sheldon and Archer around 600 AM CDT.
Sanborn and Ashton around 605 AM CDT.
Primghar around 610 AM CDT.

Other locations in the path of these severe thunderstorms include
Melvin, Hartley and Everly.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.