Alert archive / South Dakota / 2018
Weather alerts in South Dakota, September 2018
135 weather alerts in September 2018, 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 2018. Tap one for its archive.
- Alerts
- 135
- Warnings
- 68
- Watches
- 3
- Advisories
- 10
- Busiest day
- September 20, 201828 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, 3:08 AM CDT | Special Weather Statement | UNR | Pennington | 37 min |
| Sep 1, 7:18 PM CDT | Special Weather Statement | UNR | Bennett | 42 min |
| Sep 1, 10:44 PM CDT | Special Weather Statement | ABR | Corson | 31 min |
| Sep 1, 11:59 PM CDT | Special Weather Statement | UNR | Pennington | 46 min |
| Sep 2, 12:17 AM CDT | Special Weather Statement | UNR | Custer | 28 min |
| Sep 2, 12:20 AM CDT | Special Weather Statement | ABR | Corson | 40 min |
| Sep 2, 12:22 AM CDT | Special Weather Statement | ABR | Dewey | 38 min |
| Sep 2, 12:43 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 24 min |
| Sep 2, 12:51 AM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Corson, Day, Dewey, Edmunds and 7 more | 2 hr |
| Sep 2, 1:03 AM CDT | Special Weather Statement | ABR | Walworth | 42 min |
| Sep 2, 1:13 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 12 min |
| Sep 2, 1:40 AM CDT | Special Weather Statement | ABR | McPherson | 50 min |
| Sep 2, 2:10 AM CDT | Special Weather Statement | ABR | Faulk | 50 min |
| Sep 2, 2:34 AM CDT | Special Weather Statement | ABR | Brown | 41 min |
| Sep 2, 2:41 AM CDT | Special Weather Statement | ABR | Potter | 49 min |
| Sep 2, 2:54 AM CDT | Special Weather Statement | ABR | Sully | 51 min |
| Sep 2, 4:13 AM CDT | Special Weather Statement | ABR | Faulk | 47 min |
| Sep 2, 4:15 AM CDT | Special Weather Statement | ABR | Roberts | 60 min |
| Sep 2, 10:10 AM CDT | Special Weather Statement | ABR | Jerauld | 35 min |
| Sep 5, 3:21 AM CDT | River Flood Warning | FSD | Union | 8 hr |
| Sep 6, 7:40 PM CDT | Special Weather Statement | UNR | Harding | 35 min |
| Sep 7, 3:52 PM CDT | Special Weather Statement | UNR | Lawrence | 23 min |
| Sep 7, 4:13 PM CDT | Special Weather Statement | UNR | Lawrence | 32 min |
| Sep 8, 5:07 PM CDT | Mesoscale Discussion | SPC | Butte, Custer, Fall River, Lawrence, Pennington | 2 hr |
| Sep 9, 2:21 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 39 min |
| Sep 9, 2:56 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 64 min |
| Sep 9, 3:33 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 57 min |
| Sep 9, 4:25 PM CDT | Special Weather Statement | UNR | Custer | 50 min |
| Sep 9, 5:23 PM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Edmunds, Faulk, Hand, Hyde and 4 more | 2 hr |
| Sep 9, 6:30 PM CDT | Special Weather Statement | ABR | McPherson | 45 min |
| Sep 9, 6:37 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 35 min |
| Sep 9, 7:15 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 45 min |
| Sep 9, 7:56 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 49 min |
| Sep 9, 8:35 PM CDT | Special Weather Statement | UNR | Meade | 40 min |
| Sep 9, 8:37 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 38 min |
| Sep 9, 9:20 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 40 min |
| Sep 9, 9:39 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 19 min |
| Sep 9, 10:04 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 41 min |
| Sep 9, 10:29 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 46 min |
| Sep 9, 10:41 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 26 min |
| Sep 9, 10:49 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Walworth | 13 min |
| Sep 9, 11:27 PM CDT | Special Weather Statement | ABR | Potter | 33 min |
| Sep 10, 12:05 AM CDT | Severe Thunderstorm Warning | ABR | Potter | 25 min |
| Sep 10, 12:14 AM CDT | Special Weather Statement | ABR | Potter | 31 min |
| Sep 10, 7:23 AM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 52 min |
| Sep 10, 8:08 AM CDT | Special Weather Statement | ABR | Sully | 37 min |
| Sep 10, 8:14 AM CDT | Severe Thunderstorm Warning | ABR | Hyde, Sully | 26 min |
| Sep 10, 8:26 AM CDT | Special Weather Statement | ABR | Sully | 34 min |
| Sep 10, 9:05 AM CDT | Special Weather Statement | ABR | Hyde | 25 min |
| Sep 11, 3:29 PM CDT | Red Flag Warning | UNR | 30 hr | |
| Sep 11, 6:35 PM CDT | Special Weather Statement | LBF | Todd | 40 min |
| Sep 11, 8:08 PM CDT | Special Weather Statement | UNR | Todd | 37 min |
| Sep 15, 8:43 PM CDT | Wind Advisory | UNR | Lawrence | 8 hr |
| Sep 17, 6:13 AM CDT | Special Weather Statement | ABR | Corson | 32 min |
| Sep 17, 6:52 AM CDT | Special Weather Statement | ABR | Walworth | 38 min |
| Sep 17, 9:40 AM CDT | Special Weather Statement | ABR | Brown | 20 min |
| Sep 17, 7:49 PM CDT | Mesoscale Discussion | SPC | Bon Homme, Charles Mix, Gregory, Yankton | 116 min |
| Sep 17, 10:04 PM CDT | Special Weather Statement | UNR | Custer | 41 min |
| Sep 17, 11:19 PM CDT | Special Weather Statement | UNR | Oglala Lakota | 26 min |
| Sep 17, 11:39 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 51 min |
| Sep 18, 2:10 AM CDT | Special Weather Statement | ABR | Lyman | 35 min |
| Sep 18, 2:48 AM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brookings, Brule, Buffalo, Charles Mix and 17 more | 2 hr |
| Sep 18, 2:53 AM CDT | Special Weather Statement | ABR | Buffalo, Hand, Hyde, Lyman | 52 min |
| Sep 18, 5:21 AM CDT | Severe Thunderstorm Warning | ABR | Deuel | 24 min |
| Sep 18, 5:48 AM CDT | Mesoscale Discussion | SPC | Deuel, Minnehaha, Moody | 2 hr |
| Sep 19, 12:30 AM CDT | Special Weather Statement | UNR | Perkins | 45 min |
| Sep 19, 1:05 AM CDT | Special Weather Statement | UNR | Butte | 40 min |
| Sep 19, 1:14 AM CDT | Special Weather Statement | UNR | Perkins | 46 min |
| Sep 19, 1:59 AM CDT | Special Weather Statement | UNR | Ziebach | 16 min |
| Sep 19, 2:12 AM CDT | Special Weather Statement | ABR | Dewey | 48 min |
| Sep 19, 2:30 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Walworth | 60 min |
| Sep 19, 2:40 AM CDT | Mesoscale Discussion | SPC | Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 16 more | 3 hr |
| Sep 19, 2:52 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 38 min |
| Sep 19, 3:11 AM CDT | Special Weather Statement | ABR | Brule | 19 min |
| Sep 19, 3:23 AM CDT | Special Weather Statement | ABR | Potter | 67 min |
| Sep 19, 3:42 AM CDT | Special Weather Statement | ABR | Spink | 48 min |
| Sep 19, 3:47 AM CDT | Mesoscale Discussion | SPC | Beadle, Brookings, Clark, Codington, Day, Deuel and 12 more | 3 hr |
| Sep 19, 4:01 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hyde, Potter, Sully | 59 min |
| Sep 19, 4:13 AM CDT | Special Weather Statement | ABR | Spink | 47 min |
| Sep 19, 5:06 AM CDT | Special Weather Statement | ABR | Codington | 39 min |
| Sep 19, 10:31 AM CDT | Flash Flood Watch | FSD | Aurora, Bon Homme, Brookings, Brule, Charles Mix, Clay and 16 more | 26 hr |
| Sep 20, 3:36 AM CDT | Flash Flood Warning | FSD | Clay, Lincoln, Turner | 6 hr |
| Sep 20, 4:35 AM CDT | Flash Flood Warning | FSD | Clay, Lincoln, Union | 5 hr |
| Sep 20, 4:51 AM CDT | Flash Flood Warning | FSD | Hutchinson, Turner, Yankton | 5 hr |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Brookings, Moody | 5 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Minnehaha, Moody | 4 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Minnehaha | 3 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Lincoln, Minnehaha | 51 hr |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Union | 10 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Union | 12 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Hutchinson, Yankton | 6 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Yankton | 7 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Turner | 7 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Clay | 7 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Minnehaha | 4 days |
| Sep 20, 6:49 AM CDT | River Flood Warning | FSD | Minnehaha | 63 hr |
| Sep 20, 7:22 AM CDT | River Flood Warning | FSD | Lincoln, Minnehaha | 63 hr |
| Sep 20, 9:15 AM CDT | River Flood Warning | FSD | Minnehaha | 6 days |
| Sep 20, 9:29 AM CDT | Flash Flood Warning | FSD | Clay, Lincoln, Turner | 3 hr |
| Sep 20, 9:30 AM CDT | Flash Flood Warning | FSD | Clay, Lincoln, Union | 3 hr |
| Sep 20, 9:36 AM CDT | River Flood Warning | FSD | Clay | 8 days |
| Sep 20, 9:41 AM CDT | Flash Flood Warning | FSD | Hutchinson, Turner, Yankton | 3 hr |
| Sep 20, 11:17 AM CDT | River Flood Warning | FSD | Minnehaha | 6 days |
| Sep 20, 12:39 PM CDT | Areal Flood Warning | FSD | Clay, Hutchinson, Lincoln, Turner, Union, Yankton | 12 hr |
| Sep 20, 2:44 PM CDT | River Flood Warning | FSD | Lincoln | 5 days |
| Sep 20, 3:11 PM CDT | Severe Thunderstorm Watch | SPC | Union | 8 hr |
| Sep 20, 3:32 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 43 min |
| Sep 20, 3:59 PM CDT | Severe Thunderstorm Warning | FSD | Union | 46 min |
| Sep 20, 4:17 PM CDT | Tornado Warning | FSD | Union | 28 min |
| Sep 20, 7:52 PM CDT | River Flood Warning | FSD | Lincoln, Minnehaha | 31 hr |
| Sep 21, 12:31 AM CDT | Areal Flood Warning | FSD | Clay, Hutchinson, Lincoln, Turner, Union, Yankton | 24 hr |
| Sep 21, 2:14 AM CDT | River Flood Warning | FSD | Turner | 41 hr |
| Sep 21, 2:14 AM CDT | River Flood Warning | FSD | Union | 67 hr |
| Sep 21, 6:47 AM CDT | River Flood Warning | FSD | Moody | 27 hr |
| Sep 21, 8:38 AM CDT | River Flood Warning | FSD | Union | 11 days |
| Sep 21, 2:59 PM CDT | Fire Weather Watch | UNR | 25 hr | |
| Sep 22, 12:35 AM CDT | Areal Flood Warning | FSD | Clay, Hutchinson, Lincoln, Turner, Union, Yankton | 24 hr |
| Sep 22, 2:10 AM CDT | River Flood Warning | FSD | Minnehaha | 4 days |
| Sep 22, 3:02 AM CDT | Red Flag Warning | UNR | 24 hr | |
| Sep 23, 3:00 AM CDT | Red Flag Warning | UNR | 17 hr | |
| Sep 23, 5:51 AM CDT | Dense Fog Advisory | ABR | Brown, Campbell, Corson, Dewey, Edmunds, Faulk and 4 more | 6 hr |
| Sep 23, 8:34 PM CDT | River Flood Warning | FSD | Union | 5 days |
| Sep 25, 3:21 AM CDT | Wind Advisory | UNR | Butte, Haakon, Harding, Meade, Pennington, Perkins and 1 more | 16 hr |
| Sep 25, 7:29 AM CDT | River Flood Warning | FSD | Bon Homme | 14 days |
| Sep 25, 9:57 AM CDT | Wind Advisory | ABR | Buffalo, Campbell, Corson, Dewey, Hughes, Hyde and 6 more | 9 hr |
| Sep 25, 2:32 PM CDT | Frost Advisory | UNR | Bennett, Butte, Custer, Fall River, Harding, Jackson and 4 more | 18 hr |
| Sep 25, 2:32 PM CDT | Freeze Warning | UNR | Fall River, Oglala Lakota | 18 hr |
| Sep 25, 9:55 PM CDT | Frost Advisory | ABR | Corson | 9 hr |
| Sep 27, 3:39 AM CDT | Winter Weather Advisory | UNR | Custer, Pennington | 30 hr |
| Sep 27, 2:52 PM CDT | Frost Advisory | UNR | Butte, Harding, Meade, Perkins, Ziebach | 19 hr |
| Sep 27, 3:14 PM CDT | Frost Advisory | ABR | Brown, Campbell, Corson, Day, Dewey, Edmunds and 6 more | 18 hr |
| Sep 28, 3:48 AM CDT | Freeze Warning | ABR | Brown, Clark, Codington, Day, Deuel, Edmunds and 7 more | 28 hr |
| Sep 28, 9:38 AM CDT | River Flood Warning | FSD | Charles Mix | 49 hr |
| Sep 28, 12:05 PM CDT | Frost Advisory | FSD | Brookings | 19 hr |
| Sep 28, 7:28 PM CDT | River Flood Warning | FSD | Bon Homme, Charles Mix | 39 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 | 25 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 46 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 6 |
| River Flood Warning | 28 |
| Flash Flood Watch | 1 |
| Winter | |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Walworth County16
- Union County16
- Potter County15
- Lincoln County15
- Minnehaha County15
- McPherson County14
- Edmunds County12
- Turner County12
- Clay County11
- Dewey County10
- Sully County10
- Yankton County10
- Pennington County9
- Corson County9
- Campbell County9
- Faulk County9
- Hutchinson County9
- Custer County7
- Brown County7
- Lawrence County7
- Hyde County7
- Charles Mix County7
- Moody County7
- Bon Homme County6
- Spink County5
- Butte County5
- Meade County5
- Hand County5
- Brookings County5
- Deuel County5
- Perkins County5
- Day County4
- Marshall County4
- Jerauld County4
- Harding County4
- Brule County4
- Roberts County3
- Fall River County3
- Oglala Lakota County3
- Lyman County3
25 more counties
- Aurora County3
- Buffalo County3
- Davison County3
- Douglas County3
- Hamlin County3
- Hanson County3
- Kingsbury County3
- Lake County3
- McCook County3
- Miner County3
- Sanborn County3
- Ziebach County3
- Codington County3
- Bennett County2
- Todd County2
- Gregory County2
- Beadle County2
- Clark County2
- Grant County2
- Tripp County1
- Haakon County1
- Hughes County1
- Jones County1
- Stanley County1
- Jackson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.