Alert archive / South Dakota / 2009
Weather alerts in South Dakota, May 2009
70 weather alerts in May 2009, 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 May 2009. Tap one for its archive.
- Alerts
- 70
- Warnings
- 38
- Watches
- 5
- Advisories
- 10
- Busiest day
- May 12, 200918 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 |
|---|---|---|---|---|
| May 4, 4:40 PM CDT | Special Weather Statement | ABR | Edmunds, Faulk, Hand, Hughes, Hyde, Potter and 1 more | 95 min |
| May 4, 6:09 PM CDT | Special Weather Statement | ABR | Hand | 66 min |
| May 4, 6:21 PM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brule, Buffalo, Charles Mix, Davison and 8 more | 84 min |
| May 5, 6:26 AM CDT | Severe Thunderstorm Warning | FSD | Union | 34 min |
| May 6, 2:27 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 35 min |
| May 12, 4:13 AM CDT | Wind Advisory | ABR | Clark, Codington, Day, Deuel, Grant, Hamlin and 2 more | 12 hr |
| May 12, 4:27 AM CDT | High Wind Watch | UNR | Butte, Harding, Lawrence, Meade, Pennington, Perkins | 11 hr |
| May 12, 3:19 PM CDT | Mesoscale Discussion | SPC | Butte, Campbell, Corson, Dewey, Haakon, Harding and 9 more | 56 min |
| May 12, 3:22 PM CDT | High Wind Warning | UNR | Butte, Custer, Haakon, Harding, Lawrence, Meade and 3 more | 29 hr |
| May 12, 3:22 PM CDT | Wind Advisory | UNR | Bennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 2 more | 29 hr |
| May 12, 3:36 PM CDT | Severe Thunderstorm Watch | SPC | Butte, Campbell, Corson, Dewey, Harding, Lawrence and 4 more | 7 hr |
| May 12, 3:49 PM CDT | High Wind Watch | FSD | Aurora, Beadle, Brule, Charles Mix, Davison, Douglas and 3 more | 12 hr |
| May 12, 3:49 PM CDT | Wind Advisory | FSD | Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more | 30 hr |
| May 12, 4:00 PM CDT | High Wind Watch | ABR | Buffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 10 more | 11 hr |
| May 12, 4:00 PM CDT | Wind Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Day and 15 more | 29 hr |
| May 12, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 61 min |
| May 12, 5:54 PM CDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Potter, Sully, Walworth and 1 more | 96 min |
| May 12, 5:57 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Perkins, Ziebach | 78 min |
| May 12, 6:08 PM CDT | Tornado Warning | UNR | Meade, Perkins, Ziebach | 52 min |
| May 12, 6:37 PM CDT | Tornado Warning | UNR | Ziebach | 24 min |
| May 12, 6:44 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 61 min |
| May 12, 6:51 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 38 min |
| May 12, 6:57 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Mellette, Todd | 63 min |
| May 12, 7:08 PM CDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Charles Mix and 17 more | 7 hr |
| May 12, 7:33 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 39 min |
| May 12, 7:34 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 41 min |
| May 12, 7:58 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 32 min |
| May 12, 8:30 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 45 min |
| May 12, 8:41 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Potter | 49 min |
| May 12, 8:42 PM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bon Homme, Brookings, Brown, Brule and 28 more | 93 min |
| May 12, 9:20 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hughes, Hyde, Potter, Sully | 11 min |
| May 12, 9:54 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 13 min |
| May 13, 3:27 AM CDT | High Wind Warning | ABR | Corson, Dewey, Hughes, Stanley, Sully | 18 hr |
| May 13, 9:04 PM CDT | Wind Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more | 2 hr |
| May 15, 2:39 PM CDT | Frost Advisory | FSD | Aurora, Beadle, Brule, Jerauld, Kingsbury, Sanborn | 17 hr |
| May 15, 3:23 PM CDT | Freeze Warning | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 17 more | 17 hr |
| May 19, 3:31 AM CDT | Wind Advisory | FSD | Bon Homme, Charles Mix, Clay, Douglas, Gregory, Union and 1 more | 17 hr |
| May 19, 2:53 PM CDT | Wind Advisory | UNR | Mellette, Todd, Tripp | 5 hr |
| May 19, 3:18 PM CDT | Wind Advisory | FSD | Brookings, Clay, Lake, Lincoln, McCook, Minnehaha and 4 more | 28 hr |
| May 20, 3:01 PM CDT | Mesoscale Discussion | SPC | Todd, Tripp | 89 min |
| May 24, 6:53 PM CDT | Areal Flood Advisory | UNR | Butte, Custer, Fall River, Lawrence, Meade, Pennington | 5 hr |
| May 24, 7:31 PM CDT | Mesoscale Discussion | SPC | Butte, Custer, Fall River, Lawrence, Meade, Oglala Lakota and 1 more | 119 min |
| May 24, 7:43 PM CDT | Flash Flood Warning | UNR | Pennington | 3 hr |
| May 25, 1:33 PM CDT | Special Weather Statement | ABR | Clark | 27 min |
| May 28, 5:06 PM CDT | Severe Thunderstorm Warning | UNR | 24 min | |
| May 28, 5:18 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 27 min |
| May 29, 5:41 PM CDT | Special Weather Statement | ABR | Campbell | 34 min |
| May 29, 5:56 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 49 min |
| May 29, 6:15 PM CDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, Faulk, Haakon and 13 more | 60 min |
| May 29, 6:29 PM CDT | Special Weather Statement | ABR | Walworth | 46 min |
| May 29, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey, Walworth | 45 min |
| May 29, 7:24 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter | 51 min |
| May 29, 7:36 PM CDT | Tornado Warning | ABR | Potter | 24 min |
| May 29, 7:54 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 51 min |
| May 29, 8:00 PM CDT | Special Weather Statement | ABR | Hyde | 45 min |
| May 29, 8:42 PM CDT | Special Weather Statement | ABR | Hyde | 48 min |
| May 29, 9:27 PM CDT | Special Weather Statement | ABR | Buffalo | 48 min |
| May 31, 12:39 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 44 min |
| May 31, 1:49 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 18 min |
| May 31, 2:51 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 39 min |
| May 31, 2:59 PM CDT | Severe Thunderstorm Warning | UNR | 61 min | |
| May 31, 4:04 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 56 min |
| May 31, 4:44 PM CDT | Special Weather Statement | ABR | Day | 46 min |
| May 31, 4:52 PM CDT | Special Weather Statement | ABR | Clark | 53 min |
| May 31, 5:34 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 41 min |
| May 31, 6:01 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 30 min |
| May 31, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 33 min |
| May 31, 6:25 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 35 min |
| May 31, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 31 min |
| May 31, 6:46 PM CDT | Severe Thunderstorm Warning | FSD | Miner, Sanborn | 29 min |
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 | 31 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 10 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 3 |
| Wind Advisory | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Potter County15
- Dewey County13
- Walworth County12
- Sully County11
- Faulk County10
- Hand County10
- Hyde County10
- Corson County10
- Clark County9
- Meade County9
- Campbell County9
- Edmunds County8
- Hughes County8
- Buffalo County8
- Stanley County8
- Todd County8
- Tripp County8
- Lyman County8
- Beadle County7
- Brule County7
- Spink County7
- Butte County7
- Perkins County7
- Ziebach County7
- Mellette County7
- Aurora County6
- Charles Mix County6
- Gregory County6
- Jerauld County6
- Sanborn County6
- Codington County6
- Day County6
- Hamlin County6
- Lawrence County6
- Pennington County6
- Custer County6
- Jones County6
- McPherson County6
- Douglas County5
- Marshall County5
26 more counties
- Harding County5
- Fall River County5
- Kingsbury County5
- Brown County5
- Davison County4
- Union County4
- Turner County4
- Deuel County4
- Grant County4
- Roberts County4
- Haakon County4
- Brookings County4
- Clay County4
- Yankton County4
- Bon Homme County3
- Lake County3
- Lincoln County3
- McCook County3
- Miner County3
- Minnehaha County3
- Moody County3
- Bennett County2
- Oglala Lakota County2
- Hanson County2
- Hutchinson County2
- Jackson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.