Alert archive / South Dakota / 2009
Weather alerts in South Dakota, April 2009
63 weather alerts in April 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 April 2009. Tap one for its archive.
- Alerts
- 63
- Warnings
- 29
- Watches
- 6
- Advisories
- 20
- Busiest day
- April 12, 200911 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 |
|---|---|---|---|---|
| Apr 2, 5:06 AM CDT | Winter Storm Watch | UNR | Bennett, Butte, Custer, Fall River, Haakon, Harding and 10 more | 25 hr |
| Apr 2, 3:23 PM CDT | Winter Storm Watch | ABR | Buffalo, Campbell, Corson, Dewey, Hand, Hughes and 7 more | 13 hr |
| Apr 2, 3:24 PM CDT | Winter Storm Watch | FSD | Aurora, Beadle, Bon Homme, Brule, Charles Mix, Clay and 16 more | 30 hr |
| Apr 3, 4:37 AM CDT | Winter Storm Warning | ABR | Buffalo, Dewey, Hand, Hughes, Hyde, Jones and 4 more | 41 hr |
| Apr 3, 4:37 AM CDT | Winter Weather Advisory | ABR | Campbell, Clark, Codington, Corson, Deuel, Edmunds and 5 more | 41 hr |
| Apr 3, 5:55 AM CDT | Blizzard Warning | UNR | Bennett, Haakon, Jackson, Mellette, Todd, Tripp | 46 hr |
| Apr 3, 5:55 AM CDT | Winter Storm Warning | UNR | Butte, Custer, Fall River, Harding, Lawrence, Meade and 4 more | 41 hr |
| Apr 3, 5:55 AM CDT | Winter Weather Advisory | UNR | Butte, Harding, Lawrence, Meade, Pennington, Perkins and 1 more | 27 hr |
| Apr 3, 10:40 AM CDT | Blizzard Warning | FSD | Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 10 more | 41 hr |
| Apr 3, 4:05 PM CDT | Winter Storm Warning | FSD | Davison, Hanson, Jerauld, Lincoln, McCook, Minnehaha and 2 more | 13 hr |
| Apr 3, 9:45 PM CDT | Winter Weather Advisory | FSD | Beadle, Brookings, Clay, Jerauld, Kingsbury, Lake and 5 more | 39 hr |
| Apr 4, 5:57 AM CDT | Mesoscale Discussion | SPC | Bennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington and 1 more | 4 hr |
| Apr 4, 3:20 PM CDT | Mesoscale Discussion | SPC | Charles Mix, Douglas, Gregory, Tripp | 2 hr |
| Apr 4, 9:11 PM CDT | Mesoscale Discussion | SPC | Bon Homme, Clay, Hutchinson, Lincoln, Minnehaha, Turner and 2 more | 4 hr |
| Apr 5, 6:28 AM CDT | Mesoscale Discussion | SPC | Bon Homme, Clay, Union, Yankton | 4 hr |
| Apr 6, 10:09 AM CDT | River Flood Warning | ABR | Spink | 9 days |
| Apr 8, 3:36 PM CDT | Winter Weather Advisory | UNR | Bennett, Custer, Fall River, Jackson, Lawrence, Meade and 2 more | 25 hr |
| Apr 9, 9:00 AM CDT | River Flood Warning | ABR | Corson | 48 hr |
| Apr 9, 4:07 PM CDT | Flood Watch | UNR | Bennett, Butte, Custer, Haakon, Harding, Jackson and 8 more | 72 hr |
| Apr 10, 5:03 AM CDT | Areal Flood Warning | UNR | Jackson, Mellette, Tripp | 23 hr |
| Apr 10, 10:01 AM CDT | Areal Flood Warning | ABR | Corson | 4 days |
| Apr 11, 8:48 PM CDT | Areal Flood Advisory | UNR | Perkins | 24 hr |
| Apr 11, 10:19 PM CDT | Areal Flood Advisory | UNR | Pennington | 27 hr |
| Apr 11, 11:49 PM CDT | River Flood Warning | UNR | Haakon, Meade, Pennington, Ziebach | 7 days |
| Apr 12, 1:55 AM CDT | Areal Flood Warning | UNR | Meade | 24 hr |
| Apr 12, 8:09 AM CDT | Areal Flood Warning | UNR | Butte, Haakon, Harding, Lawrence, Meade, Pennington and 2 more | 24 hr |
| Apr 12, 10:22 AM CDT | Flood Watch | UNR | Custer, Lawrence, Meade, Pennington | 4 days |
| Apr 12, 10:56 AM CDT | River Flood Warning | ABR | Corson | 4 days |
| Apr 12, 11:00 AM CDT | River Flood Warning | ABR | Dewey | 6 days |
| Apr 12, 11:15 AM CDT | River Flood Warning | UNR | Harding | 10 days |
| Apr 12, 11:15 AM CDT | River Flood Warning | UNR | Perkins | 5 days |
| Apr 12, 11:15 AM CDT | River Flood Warning | UNR | Meade | 72 hr |
| Apr 13, 7:15 AM CDT | Areal Flood Warning | UNR | Butte, Haakon, Harding, Lawrence, Meade, Pennington and 2 more | 5 days |
| Apr 13, 9:55 AM CDT | River Flood Warning | ABR | Brown | 5 days |
| Apr 13, 2:15 PM CDT | Areal Flood Advisory | ABR | Brown | 36 hr |
| Apr 14, 10:11 AM CDT | Flash Flood Warning | UNR | Harding, Perkins | 5 hr |
| Apr 14, 1:53 PM CDT | Areal Flood Advisory | ABR | Brown | 48 hr |
| Apr 15, 3:44 AM CDT | Red Flag Warning | ABR | 15 hr | |
| Apr 15, 11:05 AM CDT | Wind Advisory | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld | 8 hr |
| Apr 15, 11:27 AM CDT | Wind Advisory | ABR | Buffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 10 more | 8 hr |
| Apr 15, 12:57 PM CDT | Wind Advisory | UNR | Mellette, Todd, Tripp | 6 hr |
| Apr 16, 10:05 AM CDT | River Flood Warning | ABR | Spink | 32 days |
| Apr 16, 10:32 AM CDT | Areal Flood Advisory | ABR | Brown | 24 hr |
| Apr 16, 2:20 PM CDT | Flood Watch | UNR | Custer, Lawrence, Meade, Pennington | 5 days |
| Apr 16, 4:02 PM CDT | Winter Weather Advisory | UNR | Custer, Lawrence, Meade, Pennington | 12 hr |
| Apr 18, 3:17 PM CDT | Areal Flood Advisory | UNR | Butte, Harding, Meade, Perkins, Ziebach | 48 hr |
| Apr 20, 10:33 AM CDT | Wind Advisory | FSD | Brookings, Lincoln, Minnehaha, Moody, Union | 8 hr |
| Apr 23, 3:44 AM CDT | Red Flag Warning | FSD | 16 hr | |
| Apr 23, 2:25 PM CDT | Red Flag Warning | ABR | 6 hr | |
| Apr 24, 9:40 AM CDT | Winter Weather Advisory | UNR | Butte, Harding, Lawrence, Meade, Pennington, Perkins | 3 hr |
| Apr 25, 1:08 AM CDT | Severe Thunderstorm Warning | FSD | Union | 52 min |
| Apr 25, 4:47 AM CDT | Winter Weather Advisory | UNR | Custer, Fall River, Lawrence, Meade, Pennington, Ziebach | 35 hr |
| Apr 25, 2:46 PM CDT | Winter Storm Warning | UNR | Butte, Custer, Harding, Lawrence, Meade, Pennington and 2 more | 25 hr |
| Apr 28, 3:58 AM CDT | Wind Advisory | ABR | Corson, Dewey | 11 hr |
| Apr 28, 4:41 AM CDT | Wind Advisory | UNR | Bennett, Butte, Custer, Fall River, Haakon, Harding and 6 more | 11 hr |
| Apr 29, 3:32 PM CDT | Wind Advisory | UNR | Butte, Harding, Perkins | 9 hr |
| Apr 29, 5:22 PM CDT | Special Weather Statement | ABR | Dewey | 68 min |
| Apr 29, 8:17 PM CDT | Special Weather Statement | ABR | Day, Marshall, Spink | 3 hr |
| Apr 29, 8:52 PM CDT | Special Weather Statement | ABR | Day, Marshall, Spink | 38 min |
| Apr 29, 9:08 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 37 min |
| Apr 29, 9:27 PM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brown, Brule, Buffalo, Charles Mix and 8 more | 93 min |
| Apr 29, 9:36 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 39 min |
| Apr 29, 10:06 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 54 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 | 4 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 3 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 1 |
| River Flood Warning | 10 |
| Flood Watch | 3 |
| Areal Flood Advisory | 6 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Meade County18
- Pennington County17
- Perkins County14
- Harding County13
- Lawrence County13
- Butte County11
- Custer County11
- Ziebach County11
- Haakon County7
- Jackson County7
- Corson County7
- Union County7
- Bennett County6
- Fall River County6
- Tripp County6
- Dewey County6
- Lincoln County6
- Spink County6
- Brown County6
- Mellette County5
- Oglala Lakota County5
- Todd County5
- Charles Mix County5
- Clay County5
- Gregory County5
- Jerauld County5
- Minnehaha County5
- Day County5
- Marshall County5
- Buffalo County4
- Hand County4
- Hyde County4
- Aurora County4
- Bon Homme County4
- Brule County4
- Douglas County4
- Sanborn County4
- Turner County4
- Yankton County4
- Campbell County3
26 more counties
- Hughes County3
- Jones County3
- Lyman County3
- Potter County3
- Stanley County3
- Sully County3
- Walworth County3
- Beadle County3
- Davison County3
- Hanson County3
- Hutchinson County3
- McCook County3
- Moody County3
- Faulk County3
- Lake County2
- Miner County2
- Clark County2
- Edmunds County2
- Brookings County2
- Codington County1
- Deuel County1
- Grant County1
- Hamlin County1
- Kingsbury County1
- McPherson County1
- Roberts 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.