| Event | Severe Thunderstorm Warning |
| Severity | Severe |
| Urgency | Immediate |
| Certainty | Observed |
| Area | O’Brien, IA; Sioux, IA |
| Effective | 8/29/2026, 5:08:00 AM CDT |
| Expires | 8/29/2026, 5:45:00 AM CDT |
Severe Thunderstorm Warning issued August 29 at 5:08AM CDT until August 29 at 5:45AM CDT by NWS Sioux Falls SD
Details
SVRFSD
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for…
Southeastern Sioux County in northwestern Iowa…
Southern O’Brien County in northwestern Iowa…
* Until 545 AM CDT.
* At 508 AM CDT, a severe thunderstorm was located over Granville, or
8 miles east of Orange City, moving east at 50 mph.
HAZARD…60 mph wind gusts and quarter size hail.
SOURCE…Radar indicated.
IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near…
Paullina and Primghar around 515 AM CDT.
Sutherland around 525 AM CDT.
Instructions
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
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