Alert archive / South Dakota / Severe Thunderstorm Warnings / 2017
Severe Thunderstorm Warnings in South Dakota, August 2017
134 severe thunderstorm warnings in August 2017. 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 August 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 134
- Busiest day
- August 21, 201726 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 |
|---|---|---|---|---|
| Jul 31, 8:48 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 57 min |
| Aug 1, 10:07 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Sully | 24 min |
| Aug 1, 12:36 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 37 min |
| Aug 1, 1:49 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix | 41 min |
| Aug 1, 3:26 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 34 min |
| Aug 1, 3:59 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 31 min |
| Aug 1, 4:16 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 29 min |
| Aug 1, 4:30 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 30 min |
| Aug 2, 5:26 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 64 min |
| Aug 5, 6:34 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 56 min |
| Aug 5, 7:24 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 66 min |
| Aug 6, 4:45 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 60 min |
| Aug 6, 5:42 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 30 min |
| Aug 9, 6:06 PM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 19 min |
| Aug 9, 6:28 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant | 47 min |
| Aug 11, 6:58 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 62 min |
| Aug 12, 2:06 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 39 min |
| Aug 12, 2:16 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 59 min |
| Aug 12, 2:18 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 57 min |
| Aug 12, 2:31 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 44 min |
| Aug 12, 2:44 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 46 min |
| Aug 12, 3:01 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 44 min |
| Aug 12, 3:08 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 67 min |
| Aug 12, 3:28 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 47 min |
| Aug 12, 3:35 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman, Stanley | 19 min |
| Aug 12, 3:45 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 45 min |
| Aug 12, 4:05 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 40 min |
| Aug 12, 4:12 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 63 min |
| Aug 12, 4:31 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 59 min |
| Aug 12, 5:10 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 62 min |
| Aug 12, 5:27 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 49 min |
| Aug 12, 5:53 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 37 min |
| Aug 12, 6:41 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 34 min |
| Aug 12, 7:14 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 46 min |
| Aug 12, 7:31 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 59 min |
| Aug 12, 7:54 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 51 min |
| Aug 12, 8:32 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 43 min |
| Aug 12, 9:12 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 63 min |
| Aug 13, 11:29 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Deuel, Hamlin | 32 min |
| Aug 13, 3:16 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 44 min |
| Aug 13, 3:54 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas, Hutchinson | 51 min |
| Aug 13, 4:20 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 25 min |
| Aug 13, 4:24 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, McCook, Turner | 36 min |
| Aug 13, 5:15 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 30 min |
| Aug 13, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 33 min |
| Aug 13, 5:52 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 23 min |
| Aug 13, 6:39 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 21 min |
| Aug 13, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 31 min |
| Aug 13, 7:14 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha, Turner | 31 min |
| Aug 14, 4:44 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 61 min |
| Aug 14, 5:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 39 min |
| Aug 14, 6:01 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 59 min |
| Aug 14, 6:46 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota, Pennington | 45 min |
| Aug 14, 7:00 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 60 min |
| Aug 14, 7:24 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 66 min |
| Aug 14, 7:37 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 53 min |
| Aug 14, 7:50 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 41 min |
| Aug 14, 8:26 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 49 min |
| Aug 14, 8:37 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 68 min |
| Aug 14, 9:16 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 33 min |
| Aug 14, 9:50 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 55 min |
| Aug 15, 8:06 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 54 min |
| Aug 15, 8:55 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 47 min |
| Aug 18, 2:16 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 44 min |
| Aug 18, 2:59 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 46 min |
| Aug 18, 3:51 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 24 min |
| Aug 18, 4:24 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 51 min |
| Aug 19, 9:30 PM CDT | Severe Thunderstorm Warning | FSD | Union | 29 min |
| Aug 19, 9:54 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 36 min |
| Aug 21, 4:34 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 56 min |
| Aug 21, 5:16 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 44 min |
| Aug 21, 5:41 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 64 min |
| Aug 21, 6:04 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 41 min |
| Aug 21, 6:36 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 34 min |
| Aug 21, 6:37 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 53 min |
| Aug 21, 7:45 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 20 min |
| Aug 21, 7:54 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley, Sully | 66 min |
| Aug 21, 8:38 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 52 min |
| Aug 21, 8:55 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman, Stanley | 65 min |
| Aug 21, 9:07 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 38 min |
| Aug 21, 9:19 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 41 min |
| Aug 21, 9:42 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 33 min |
| Aug 21, 9:42 AM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 63 min |
| Aug 21, 9:50 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 40 min |
| Aug 21, 10:16 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 30 min |
| Aug 21, 10:29 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 46 min |
| Aug 21, 10:39 AM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix, Gregory | 51 min |
| Aug 21, 10:42 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 33 min |
| Aug 21, 11:06 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, McCook, Minnehaha, Turner | 39 min |
| Aug 21, 11:23 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory | 52 min |
| Aug 21, 12:05 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Charles Mix, Davison, Douglas, Gregory, Hutchinson | 40 min |
| Aug 21, 12:33 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Davison, Douglas, Hanson, Hutchinson, Yankton | 42 min |
| Aug 21, 12:48 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 27 min |
| Aug 21, 1:06 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Hutchinson, Turner, Yankton | 39 min |
| Aug 21, 1:40 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 50 min |
| Aug 25, 10:33 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 57 min |
| Aug 25, 1:40 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 50 min |
| Aug 25, 3:14 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 46 min |
| Aug 25, 3:22 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 38 min |
| Aug 25, 3:23 PM CDT | Severe Thunderstorm Warning | ABR | Faulk | 52 min |
| Aug 25, 4:12 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 63 min |
| Aug 25, 4:36 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 54 min |
| Aug 25, 5:12 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 63 min |
| Aug 25, 5:23 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day | 52 min |
| Aug 25, 5:32 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 58 min |
| Aug 25, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix, Gregory | 63 min |
| Aug 25, 5:43 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 25 min |
| Aug 25, 5:47 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 43 min |
| Aug 25, 6:03 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Day, Deuel, Grant | 42 min |
| Aug 25, 6:36 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Miner, Sanborn | 39 min |
| Aug 25, 6:48 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Jerauld, Sanborn | 57 min |
| Aug 25, 7:00 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Miner | 45 min |
| Aug 25, 7:28 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner, Minnehaha | 47 min |
| Aug 26, 2:08 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 67 min |
| Aug 26, 3:02 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 58 min |
| Aug 26, 3:47 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Oglala Lakota | 58 min |
| Aug 26, 4:14 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 46 min |
| Aug 26, 4:27 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 63 min |
| Aug 26, 4:28 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 50 min |
| Aug 26, 4:53 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 67 min |
| Aug 26, 4:57 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 63 min |
| Aug 26, 5:05 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 25 min |
| Aug 26, 5:27 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 24 min |
| Aug 26, 5:30 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 23 min |
| Aug 26, 5:45 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 60 min |
| Aug 26, 6:37 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 53 min |
| Aug 26, 6:38 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 52 min |
| Aug 26, 7:00 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 17 min |
| Aug 26, 7:10 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 50 min |
| Aug 26, 7:29 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Aug 26, 8:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Ziebach | 33 min |
| Aug 26, 8:42 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 48 min |
| Aug 26, 10:33 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 42 min |
| Aug 26, 11:21 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 54 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Meade County16
- Lyman County16
- Tripp County12
- Pennington County11
- Mellette County9
- Charles Mix County9
- Todd County8
- Jones County8
- Ziebach County8
- Dewey County7
- Sully County7
- Hutchinson County7
- Minnehaha County7
- Grant County7
- Brule County6
- Perkins County6
- Stanley County6
- Douglas County6
- Turner County6
- Oglala Lakota County6
- Haakon County6
- Lincoln County5
- Codington County5
- Deuel County5
- Hughes County5
- Gregory County5
- Bon Homme County5
- McCook County5
- Lawrence County5
- Aurora County4
- Potter County4
- Custer County4
- Day County3
- Corson County3
- Bennett County3
- Union County3
- Davison County3
- Yankton County3
- Miner County3
- Jackson County3
20 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.