Alert archive / South Dakota / 2009
Weather alerts in South Dakota, September 2009
64 weather alerts in September 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 September 2009. Tap one for its archive.
- Alerts
- 64
- Warnings
- 30
- Watches
- 7
- Advisories
- 21
- Busiest day
- September 8, 200914 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 2, 12:05 PM CDT | Areal Flood Advisory | ABR | Dewey | 4 hr |
| Sep 2, 3:53 PM CDT | Tornado Warning | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory | 22 min |
| Sep 2, 4:11 PM CDT | Tornado Warning | FSD | Aurora, Brule, Charles Mix, Gregory | 49 min |
| Sep 2, 4:32 PM CDT | Mesoscale Discussion | SPC | Aurora, Bon Homme, Brule, Buffalo, Charles Mix, Davison and 3 more | 88 min |
| Sep 2, 8:08 PM CDT | Flash Flood Warning | FSD | Kingsbury | 112 min |
| Sep 4, 3:45 AM CDT | Dense Fog Advisory | ABR | Brown, Buffalo, Campbell, Corson, Day, Dewey and 14 more | 6 hr |
| Sep 4, 4:49 AM CDT | Dense Fog Advisory | FSD | Aurora, Beadle, Brule, Davison, Douglas, Jerauld and 1 more | 3 hr |
| Sep 8, 1:38 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 24 min |
| Sep 8, 1:44 AM CDT | Mesoscale Discussion | SPC | Corson | 91 min |
| Sep 8, 2:32 PM CDT | Mesoscale Discussion | SPC | Beadle, Bennett, Brown, Brule, Buffalo, Edmunds and 14 more | 88 min |
| Sep 8, 2:53 PM CDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Charles Mix and 26 more | 8 hr |
| Sep 8, 3:13 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 62 min |
| Sep 8, 3:26 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk | 64 min |
| Sep 8, 3:48 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 42 min |
| Sep 8, 3:50 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 70 min |
| Sep 8, 3:59 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 76 min |
| Sep 8, 4:40 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 27 min |
| Sep 8, 5:14 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 46 min |
| Sep 8, 5:16 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 28 min |
| Sep 8, 5:18 PM CDT | Flash Flood Warning | ABR | Edmunds | 4 hr |
| Sep 8, 6:00 PM CDT | Areal Flood Advisory | ABR | Brown, Spink | 3 hr |
| Sep 8, 7:10 PM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Charles Mix and 23 more | 2 hr |
| Sep 8, 9:26 PM CDT | Areal Flood Advisory | ABR | Brown, Edmunds | 6 hr |
| Sep 10, 10:22 AM CDT | Flood Watch | ABR | Brown, Day, Edmunds, Faulk, McPherson, Marshall | 19 hr |
| Sep 10, 3:36 PM CDT | Wind Advisory | UNR | Butte, Custer, Haakon, Harding, Jackson, Lawrence and 4 more | 17 min |
| Sep 10, 3:53 PM CDT | Wind Advisory | UNR | Butte, Custer, Haakon, Harding, Jackson, Lawrence and 4 more | 13 hr |
| Sep 10, 4:53 PM CDT | Mesoscale Discussion | SPC | Butte, Corson, Dewey, Meade, Pennington, Perkins and 1 more | 97 min |
| Sep 10, 8:53 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 49 min |
| Sep 10, 9:41 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 49 min |
| Sep 10, 11:07 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 8 min |
| Sep 10, 11:16 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 44 min |
| Sep 10, 11:16 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 31 min |
| Sep 10, 11:29 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 49 min |
| Sep 10, 11:34 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 41 min |
| Sep 11, 1:36 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Dewey, Edmunds, McPherson, Potter, Walworth | 54 min |
| Sep 11, 3:27 PM CDT | Flash Flood Warning | FSD | Union | 93 min |
| Sep 13, 4:26 AM CDT | Wind Advisory | UNR | Butte, Harding, Perkins | 17 hr |
| Sep 18, 10:13 AM CDT | Fire Weather Watch | ABR | 17 hr | |
| Sep 19, 3:38 AM CDT | Red Flag Warning | ABR | 16 hr | |
| Sep 19, 4:43 AM CDT | Red Flag Warning | UNR | 16 hr | |
| Sep 21, 3:25 AM CDT | Severe Thunderstorm Warning | FSD | Union | 33 min |
| Sep 21, 3:50 AM CDT | Wind Advisory | UNR | Butte, Haakon, Harding, Jackson, Meade, Pennington and 2 more | 15 hr |
| Sep 26, 3:33 AM CDT | Fire Weather Watch | FSD | 24 hr | |
| Sep 26, 3:39 AM CDT | Wind Advisory | UNR | Bennett, Butte, Custer, Haakon, Harding, Jackson and 9 more | 39 hr |
| Sep 26, 4:13 AM CDT | Fire Weather Watch | ABR | 24 hr | |
| Sep 26, 2:26 PM CDT | Wind Advisory | FSD | Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more | 30 hr |
| Sep 26, 3:08 PM CDT | Wind Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more | 28 hr |
| Sep 27, 3:33 AM CDT | Red Flag Warning | FSD | 15 hr | |
| Sep 27, 3:36 AM CDT | High Wind Warning | UNR | Butte, Custer, Haakon, Harding, Lawrence, Meade and 3 more | 15 hr |
| Sep 27, 4:25 AM CDT | Red Flag Warning | ABR | 16 hr | |
| Sep 27, 3:34 PM CDT | Frost Advisory | UNR | Butte, Custer, Fall River, Harding, Lawrence, Meade and 3 more | 17 hr |
| Sep 28, 3:49 AM CDT | Frost Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 17 more | 29 hr |
| Sep 28, 3:20 PM CDT | Frost Advisory | FSD | Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more | 18 hr |
| Sep 28, 3:45 PM CDT | Wind Advisory | UNR | Butte, Harding, Meade, Perkins, Ziebach | 29 hr |
| Sep 29, 4:29 AM CDT | High Wind Watch | UNR | Bennett, Butte, Custer, Haakon, Harding, Jackson and 8 more | 36 hr |
| Sep 30, 4:26 AM CDT | High Wind Warning | UNR | Butte, Custer, Harding, Lawrence, Meade, Pennington and 1 more | 42 hr |
| Sep 30, 4:26 AM CDT | Winter Storm Watch | UNR | Custer, Lawrence, Meade, Pennington | 12 hr |
| Sep 30, 11:07 AM CDT | Wind Advisory | ABR | Brown, Buffalo, Campbell, Clark, Corson, Day and 15 more | 8 hr |
| Sep 30, 3:29 PM CDT | Wind Advisory | ABR | Buffalo, Campbell, Corson, Dewey, Hughes, Hyde and 6 more | 48 hr |
| Sep 30, 3:54 PM CDT | Wind Advisory | FSD | Brule, Charles Mix, Gregory | 23 hr |
| Sep 30, 4:00 PM CDT | Wind Advisory | UNR | Bennett, Butte, Custer, Fall River, Haakon, Harding and 10 more | 48 hr |
| Sep 30, 4:04 PM CDT | Winter Storm Warning | UNR | Lawrence, Meade, Pennington | 12 hr |
| Sep 30, 4:04 PM CDT | Winter Weather Advisory | UNR | Custer, Lawrence, Meade, Pennington | 24 hr |
| Sep 30, 6:01 PM CDT | Mesoscale Discussion | SPC | Bennett, Todd | 89 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 | 18 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 6 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Cold | |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 12 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Meade County15
- Perkins County15
- Edmunds County13
- Pennington County13
- Brown County12
- Butte County12
- Corson County11
- Harding County11
- Lawrence County11
- Brule County10
- Faulk County10
- Todd County10
- Custer County10
- Ziebach County10
- Buffalo County9
- Spink County9
- Dewey County8
- Aurora County8
- Charles Mix County8
- Hyde County8
- Lyman County8
- Douglas County7
- Gregory County7
- Jerauld County7
- Day County7
- Hand County7
- Hughes County7
- Jones County7
- Marshall County7
- Potter County7
- Beadle County7
- Bennett County7
- Haakon County7
- Davison County6
- Campbell County6
- McPherson County6
- Sully County6
- Walworth County6
- Mellette County6
- Tripp County6
26 more counties
- Jackson County6
- Kingsbury County5
- Stanley County5
- Sanborn County5
- Clark County5
- Codington County4
- Deuel County4
- Grant County4
- Hamlin County4
- Hanson County4
- Miner County4
- Roberts County4
- Union County4
- Oglala Lakota County4
- Bon Homme County3
- Hutchinson County3
- Brookings County2
- Clay County2
- Lake County2
- Lincoln County2
- McCook County2
- Minnehaha County2
- Moody County2
- Turner County2
- Yankton County2
- Fall River County2
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.