Alert archive / Minnesota / Severe Thunderstorm Warnings / 2026
Severe Thunderstorm Warnings in Minnesota, September 2026
58 severe thunderstorm warnings in September 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in September 2026. Tap one for its archive.
- Severe Thunderstorm Warnings
- 58
- Busiest day
- September 3, 202614 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 9:51 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 24 min |
| Sep 1, 10:02 PM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 43 min |
| Sep 1, 10:34 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles, Rock | 71 min |
| Sep 1, 10:41 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault | 49 min |
| Sep 1, 11:23 PM CDT | Severe Thunderstorm Warning | MPX | Steele, Waseca | 52 min |
| Sep 1, 11:30 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Faribault, Martin, Nicollet, Watonwan | 45 min |
| Sep 1, 11:56 PM CDT | Severe Thunderstorm Warning | ARX | Winona | 34 min |
| Sep 2, 12:43 AM CDT | Severe Thunderstorm Warning | MPX | Steele | 17 min |
| Sep 2, 12:47 AM CDT | Severe Thunderstorm Warning | ARX | Dodge | 58 min |
| Sep 2, 1:17 AM CDT | Severe Thunderstorm Warning | ARX | Dodge, Fillmore, Mower, Olmsted, Wabasha | 58 min |
| Sep 2, 1:47 AM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Houston, Wabasha, Winona | 58 min |
| Sep 2, 4:18 AM CDT | Severe Thunderstorm Warning | ARX | Mower | 26 min |
| Sep 3, 12:53 PM CDT | Severe Thunderstorm Warning | FGF | Norman, Polk | 67 min |
| Sep 3, 1:49 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Norman, Pennington, Polk, Red Lake | 56 min |
| Sep 3, 2:22 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 18 min |
| Sep 3, 2:39 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Marshall, Norman, Pennington, Polk, Red Lake | 66 min |
| Sep 3, 3:01 PM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 44 min |
| Sep 3, 3:14 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Clearwater, Mahnomen, Norman, Polk | 61 min |
| Sep 3, 3:23 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Marshall, Pennington, Roseau | 67 min |
| Sep 3, 3:53 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods, Roseau | 67 min |
| Sep 3, 4:01 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Otter Tail and 2 more | 59 min |
| Sep 3, 4:06 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 54 min |
| Sep 3, 4:50 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard | 55 min |
| Sep 3, 4:56 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 64 min |
| Sep 3, 5:54 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca | 66 min |
| Sep 3, 6:35 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 55 min |
| Sep 3, 7:11 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 64 min |
| Sep 3, 7:19 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Pennington, Polk, Red Lake | 56 min |
| Sep 3, 8:09 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Marshall, Pennington, Red Lake | 66 min |
| Sep 3, 8:12 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Polk, Red Lake | 63 min |
| Sep 3, 8:16 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 59 min |
| Sep 3, 9:08 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Todd | 39 min |
| Sep 3, 9:10 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen, Polk | 65 min |
| Sep 3, 10:00 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen | 28 min |
| Sep 3, 10:03 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 57 min |
| Sep 3, 10:38 PM CDT | Severe Thunderstorm Warning | DLH | Cass | 67 min |
| Sep 3, 11:29 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Itasca, Saint Louis | 61 min |
| Sep 6, 6:11 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Pennington, Polk, Red Lake | 64 min |
| Sep 6, 7:27 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Kittson, Lake of the Woods, Marshall, Roseau | 63 min |
| Sep 11, 4:14 PM CDT | Severe Thunderstorm Warning | DLH | Lake, Saint Louis | 61 min |
| Sep 11, 6:24 PM CDT | Severe Thunderstorm Warning | ABR | Traverse | 16 min |
| Sep 11, 6:28 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 62 min |
| Sep 11, 6:51 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 54 min |
| Sep 11, 6:54 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 51 min |
| Sep 11, 7:02 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wadena | 58 min |
| Sep 11, 7:05 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 40 min |
| Sep 11, 7:05 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 55 min |
| Sep 11, 7:10 PM CDT | Severe Thunderstorm Warning | DLH | Cass | 35 min |
| Sep 11, 7:19 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone | 27 min |
| Sep 11, 7:22 PM CDT | Severe Thunderstorm Warning | DLH | Cass | 53 min |
| Sep 11, 7:33 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone | 27 min |
| Sep 11, 7:37 PM CDT | Severe Thunderstorm Warning | FGF | Wadena | 53 min |
| Sep 11, 7:41 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 38 min |
| Sep 11, 7:43 PM CDT | Severe Thunderstorm Warning | DLH | Cass | 34 min |
| Sep 11, 8:32 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 16 min |
| Sep 11, 9:09 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Pope, Swift | 18 min |
| Sep 28, 5:12 PM CDT | Severe Thunderstorm Warning | FGF | Wadena | |
| Sep 28, 5:13 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 62 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Polk County9
- Clearwater County8
- Marshall County7
- Beltrami County7
- Cass County7
- Pennington County6
- Red Lake County6
- Otter Tail County6
- Norman County5
- Mahnomen County5
- Wadena County4
- Faribault County3
- Clay County3
- Becker County3
- Roseau County3
- Hubbard County3
- Itasca County3
- Stevens County3
- Big Stone County3
- Nobles County2
- Rock County2
- Blue Earth County2
- Steele County2
- Winona County2
- Dodge County2
- Fillmore County2
- Mower County2
- Wabasha County2
- Lake of the Woods County2
- Aitkin County2
- Wilkin County2
- Saint Louis County2
- Traverse County2
- Swift County2
- Cottonwood County1
- Jackson County1
- Murray County1
- Waseca County1
- Brown County1
- Martin County1
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.