Alert archive / South Dakota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 268, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Sep 5, 2026, 12:25 AM CDT for Beadle County, Jerauld County, South Dakota. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 5, 2026, 12:25 AM CDT (05:25 UTC)
- Expired
- Sep 5, 2026, 1:00 AM CDT
- In force
- 35 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Beadle County, SD, Jerauld County, SD
The radar
The Aberdeen radar (KABR), 135 km from the middle of the area, began a volume at 05:28 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 5.4 hours before the alert went out and 73 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1325 J/kg
- Mixed-layer CIN
- -301 J/kg
- Mixed-layer LCL
- 2105 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 4, 8:55 PM CDT, 3 hours 30 minutes earlier.
Area forecast discussion, Sep 4, 8:55 PM CDT, 3 hours 30 minutes before
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</html>Hazardous weather outlook, Sep 4, 8:59 PM CDT, 3 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 859 PM CDT Fri Sep 4 2026 IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-060200- Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson- Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory- Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook- Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton- Union- 859 PM CDT Fri Sep 4 2026 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska, central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Tonight. Isolated to scattered thunderstorms are possible tonight. Some may be strong to severe producing heavy rain, wind gusts of 60-65 mph, and hail to the size of a quarter. An isolated stronger storm may produce hail up to the size of a ping-pong ball. Some patchy fog is possible early Saturday morning. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Hot and humid conditions are expected through the weekend. Heat Index values will be in the 90s to around 100 during the afternoon. Please apply heat safety to your outdoor activities. Periods of isolated to scattered thunderstorms remain possible through the weekend. A stronger storm or two are possible but widespread severe weather is not expected. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 2:16 AM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 29 min |
| Sep 5, 2:29 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld, Sanborn | 31 min |
| Sep 5, 3:01 AM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Hutchinson | 44 min |
| Sep 5, 3:42 AM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, McCook | 48 min |
| Sep 5, 4:38 AM CDT | Flash Flood Warning | FSD | Davison, Hanson, Hutchinson | 3 hr |
| Sep 5, 4:57 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 48 min |
| Sep 5, 5:45 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 45 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.