Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 310, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Sep 14, 2025, 1:34 PM CDT for Brookings County, Moody County, South Dakota. It was in force for 41 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 14, 2025, 1:34 PM CDT (18:34 UTC)
- Expired
- Sep 14, 2025, 2:15 PM CDT
- In force
- 41 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brookings County, SD, Moody County, SD
The radar
The Sioux Falls radar (KFSD), 68 km from the middle of the area, began a volume at 18:34 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 12:00Z, 6.6 hours before the alert went out and 154 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
- 792 J/kg
- Mixed-layer CIN
- -167 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 14, 12:18 PM CDT, 1 hour 16 minutes earlier.
Area forecast discussion, Sep 14, 12:18 PM CDT, 1 hour 16 minutes before
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</html>Hazardous weather outlook, Sep 14, 4:35 AM CDT, 8 hours 59 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 435 AM CDT Sun Sep 14 2025 IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-150945- 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- 435 AM CDT Sun Sep 14 2025 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...Today and tonight. Scattered showers and storms will develop this afternoon, bringing a risk of isolated strong to severe storms. 60 mph winds and hail up to the size of quarters are the main threats. Rain and storms continue into tonight, but the severe weather threat wanes after sunset. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Another round of rain and storms is increasingly likely late Tuesday into Wednesday. A severe storm can't be entirely ruled out, but a lot of uncertainty remains. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 4:24 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Moody | 36 min |
| Sep 14, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 27 min |
| Sep 14, 2:54 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 36 min |
| Sep 14, 3:07 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 24 min |
| Sep 14, 5:01 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Sep 14, 4:03 PM CDT | Severe Thunderstorm Warning | FSD | Murray, Pipestone, Rock | 27 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2025Every severe thunderstorm warning in 2025
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.