⚠️ Severe Thunderstorm Warning – Haakon, SD; Jackson, SD; Mellette, SD – Tuesday, August 11, 2026

Severe Thunderstorm Warning issued August 10 at 11:13PM MDT until August 11 at 12:15AM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Western Mellette County in south central South Dakota…
Eastern Jackson County in southwestern South Dakota…
Southeastern Haakon County in west central South Dakota…

* Until 1215 AM MDT /115 AM CDT/.

* At 1113 PM MDT /1213 AM CDT/, a severe thunderstorm was located 9
miles southwest of Ottumwa, or 12 miles northeast of Philip, moving
southeast at 45 MPH.

HAZARD…Two inch hail and 60 MPH wind gusts.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.

* Locations impacted include…
Kadoka, White River, Norris, Midland, Belvidere, Cedar Butte, Corn
Creek, Black Pipe, Ottumwa, Swift Bear and Nowlin.

This includes Interstate 90 in South Dakota between Mile Markers 149
and 174.

Instructions

Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail and damaging winds.

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

If you observe a tornado, hail, wind damage, or flooding, please
report your observations to the National Weather Service office in
Rapid City via phone, email, or social media, as soon as it is safe
to do so.

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