Alert archive / Minnesota / Severe Thunderstorm Warnings / 2021
Severe Thunderstorm Warnings in Minnesota, September 2021
40 severe thunderstorm warnings in September 2021. 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 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 40
- Busiest day
- September 17, 202120 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 6, 9:17 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 18 min |
| Sep 6, 9:50 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman | 20 min |
| Sep 6, 11:30 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Mahnomen | 45 min |
| Sep 7, 12:07 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Wadena | 38 min |
| Sep 15, 10:38 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall | 52 min |
| Sep 15, 10:47 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Polk | 43 min |
| Sep 15, 11:25 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Pennington, Polk | 50 min |
| Sep 15, 11:45 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 60 min |
| Sep 16, 12:42 AM CDT | Severe Thunderstorm Warning | FGF | Polk, Red Lake | 33 min |
| Sep 16, 1:59 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Hubbard, Mahnomen, Polk | 49 min |
| Sep 16, 6:03 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Crow Wing | 27 min |
| Sep 16, 6:16 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 27 min |
| Sep 16, 6:25 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 35 min |
| Sep 16, 6:26 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 49 min |
| Sep 16, 6:27 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Saint Louis | 48 min |
| Sep 16, 6:30 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Swift | 45 min |
| Sep 16, 6:40 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Renville, Yellow Medicine | 35 min |
| Sep 16, 6:48 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 42 min |
| Sep 16, 7:08 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi | 37 min |
| Sep 16, 7:09 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 23 min |
| Sep 16, 7:18 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Renville | 27 min |
| Sep 16, 7:30 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 45 min |
| Sep 16, 7:44 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Renville | 31 min |
| Sep 16, 7:53 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs | 37 min |
| Sep 16, 8:12 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville | 33 min |
| Sep 16, 8:22 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Pine | 53 min |
| Sep 16, 8:45 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 30 min |
| Sep 16, 11:58 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Saint Louis | 32 min |
| Sep 17, 12:10 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Pipestone, Rock | 35 min |
| Sep 17, 12:34 AM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more | 56 min |
| Sep 17, 12:36 AM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles, Rock | 54 min |
| Sep 17, 1:21 AM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Lyon, Murray, Nobles | 39 min |
| Sep 17, 1:23 AM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles | 67 min |
| Sep 17, 1:29 AM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Renville | 31 min |
| Sep 17, 2:29 AM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Scott, Sibley | 16 min |
| Sep 17, 2:45 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Scott | 15 min |
| Sep 17, 2:59 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Dakota, Hennepin, Ramsey, Scott, Washington | 16 min |
| Sep 17, 3:15 AM CDT | Severe Thunderstorm Warning | MPX | Washington | 15 min |
| Sep 20, 3:47 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Fillmore, Mower, Olmsted | 43 min |
| Sep 20, 4:30 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Mower, Olmsted, Wabasha, Winona | 45 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Polk County5
- Kandiyohi County5
- Renville County5
- Saint Louis County4
- Chippewa County4
- Jackson County4
- Nobles County4
- Mahnomen County3
- Marshall County3
- Aitkin County3
- Morrison County3
- McLeod County3
- Rock County3
- Scott County3
- Beltrami County2
- Becker County2
- Clearwater County2
- Hubbard County2
- Stearns County2
- Mille Lacs County2
- Meeker County2
- Lincoln County2
- Pipestone County2
- Cottonwood County2
- Lyon County2
- Murray County2
- Carver County2
- Hennepin County2
- Washington County2
- Fillmore County2
- Mower County2
- Olmsted County2
- Norman County1
- Wadena County1
- Kittson County1
- Pennington County1
- Red Lake County1
- Crow Wing County1
- Benton County1
- Swift County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.