Alert archive / South Dakota / Mesoscale Discussions in 2025
Mesoscale Discussion 1939
The Storm Prediction Center issued this mesoscale discussion at Aug 13, 2025, 2:11 PM MDT for 15 counties in South Dakota; Crook County, Weston County, Wyoming. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2025, 2:11 PM MDT (20:11 UTC)
- Expired
- Aug 13, 2025, 3:45 PM MDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
Counties Bennett County, SD, Butte County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Lyman County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Stanley County, SD, Todd County, SD, Crook County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 35 km from the middle of the area, began a volume at 20:14 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | Bennett, Bon Homme, Brule, Butte, Charles Mix, Custer and 17 more | 9 hr |
| Aug 13, 4:21 PM MDT | Mesoscale Discussion | SPC | Aurora, Bennett, Brule, Buffalo, Butte, Charles Mix and 15 more | 114 min |
| Aug 13, 5:51 PM MDT | Mesoscale Discussion | SPC | Brown, Clark, Codington, Day, Deuel, Grant and 3 more | 114 min |
Nearby
Mesoscale Discussions in South Dakota, 2025Mesoscale Discussions in Wyoming, 2025Every mesoscale discussion 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; radar from the NEXRAD Level II archive.