Alert archive / South Dakota / 2011
Weather alerts in South Dakota, September 2011
26 weather alerts in September 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2011. Tap one for its archive.
- Alerts
- 26
- Warnings
- 12
- Watches
- 4
- Advisories
- 8
- Busiest day
- September 3, 20117 alerts
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, 9:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 26 min |
| Sep 1, 9:51 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 39 min |
| Sep 2, 2:56 PM CDT | Mesoscale Discussion | SPC | Butte, Harding, Meade, Perkins | 94 min |
| Sep 2, 7:09 PM CDT | Wind Advisory | UNR | Butte, Harding, Lawrence, Meade, Pennington, Perkins and 1 more | 11 hr |
| Sep 2, 11:22 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 38 min |
| Sep 2, 11:57 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 63 min |
| Sep 3, 12:32 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 58 min |
| Sep 3, 1:20 AM CDT | Mesoscale Discussion | SPC | Brule, Charles Mix, Gregory, Todd, Tripp | 85 min |
| Sep 3, 1:28 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 62 min |
| Sep 3, 3:38 AM CDT | Severe Thunderstorm Warning | UNR | Todd | 38 min |
| Sep 13, 3:42 AM CDT | Freeze Watch | ABR | Brown, Clark, Codington, Day, Deuel, Edmunds and 7 more | 12 hr |
| Sep 13, 3:54 AM CDT | Freeze Watch | FSD | Brookings, Kingsbury, Lake, Minnehaha, Moody | 11 hr |
| Sep 13, 3:12 PM CDT | Freeze Warning | FSD | Beadle, Brookings, Kingsbury, Lake, Lincoln, McCook and 4 more | 41 hr |
| Sep 13, 3:20 PM CDT | Freeze Warning | ABR | Brown, Clark, Codington, Day, Deuel, Edmunds and 8 more | 41 hr |
| Sep 14, 4:02 AM CDT | Frost Advisory | FSD | Aurora, Bon Homme, Clay, Davison, Douglas, Hanson and 5 more | 28 hr |
| Sep 14, 2:56 PM CDT | Frost Advisory | ABR | Buffalo, Campbell, Hughes, Hyde, Potter, Sully and 1 more | 17 hr |
| Sep 19, 3:13 AM CDT | High Wind Watch | ABR | Brown, Campbell, Clark, Codington, Corson, Day and 17 more | 12 hr |
| Sep 19, 4:30 AM CDT | High Wind Watch | UNR | Butte, Haakon, Harding, Meade, Pennington, Perkins and 1 more | 11 hr |
| Sep 19, 3:03 PM CDT | High Wind Warning | ABR | Brown, Campbell, Clark, Codington, Corson, Day and 17 more | 24 hr |
| Sep 19, 3:03 PM CDT | Wind Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more | 31 hr |
| Sep 19, 3:15 PM CDT | High Wind Warning | UNR | Butte, Custer, Haakon, Harding, Lawrence, Meade and 3 more | 24 hr |
| Sep 19, 3:15 PM CDT | Wind Advisory | UNR | Bennett, Custer, Jackson, Mellette, Oglala Lakota, Todd and 1 more | 24 hr |
| Sep 19, 3:28 PM CDT | Wind Advisory | FSD | Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more | 34 hr |
| Sep 20, 12:28 PM CDT | High Wind Warning | FSD | Beadle, Brule, Jerauld | 4 hr |
| Sep 20, 9:00 PM CDT | Frost Advisory | UNR | Custer, Fall River, Oglala Lakota | 11 hr |
| Sep 29, 12:03 PM CDT | Frost Advisory | UNR | Bennett, Butte, Custer, Fall River, Haakon, Harding and 10 more | 21 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 7 |
| Mesoscale Discussion | 2 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Wind Advisory | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County8
- Meade County7
- Haakon County7
- Jackson County6
- Ziebach County5
- Butte County5
- Harding County5
- Perkins County5
- Todd County5
- Brown County5
- Clark County5
- Codington County5
- Day County5
- Deuel County5
- Edmunds County5
- Faulk County5
- Grant County5
- Hamlin County5
- McPherson County5
- Marshall County5
- Roberts County5
- Spink County5
- Mellette County4
- Hand County4
- Campbell County4
- Hughes County4
- Hyde County4
- Potter County4
- Sully County4
- Walworth County4
- Custer County4
- Lawrence County3
- Brule County3
- Tripp County3
- Bennett County3
- Brookings County3
- Kingsbury County3
- Lake County3
- Minnehaha County3
- Moody County3
26 more counties
- Beadle County3
- Jerauld County3
- Corson County3
- Dewey County3
- Stanley County3
- Oglala Lakota County3
- Charles Mix County2
- Gregory County2
- Lincoln County2
- McCook County2
- Miner County2
- Turner County2
- Aurora County2
- Bon Homme County2
- Clay County2
- Davison County2
- Douglas County2
- Hanson County2
- Hutchinson County2
- Sanborn County2
- Union County2
- Yankton County2
- Buffalo County2
- Fall River County2
- Jones County1
- Lyman County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.