Alert archive / South Dakota / 1999
Weather alerts in South Dakota, August 1999
84 weather alerts in August 1999, 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 August 1999. Tap one for its archive.
- Alerts
- 84
- Warnings
- 78
- Watches
- 6
- Advisories
- 0
- Busiest day
- August 12, 199922 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 |
|---|---|---|---|---|
| Aug 6, 8:36 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 34 min |
| Aug 6, 9:07 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 28 min |
| Aug 6, 9:33 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 42 min |
| Aug 7, 1:19 PM CDT | Flash Flood Warning | UNR | Custer | 6 hr |
| Aug 7, 1:44 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 46 min |
| Aug 7, 1:57 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 48 min |
| Aug 9, 12:35 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 60 min |
| Aug 9, 2:30 AM CDT | Severe Thunderstorm Watch | SPC | Codington, Day, Deuel, Grant, Marshall, Roberts | 6 hr |
| Aug 11, 3:01 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 49 min |
| Aug 11, 3:30 PM CDT | Tornado Watch | SPC | Butte, Corson, Haakon, Harding, Lawrence, Meade and 3 more | 7 hr |
| Aug 11, 3:41 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| Aug 11, 3:59 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 31 min |
| Aug 11, 4:31 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 34 min |
| Aug 11, 4:49 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 51 min |
| Aug 11, 5:04 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 36 min |
| Aug 11, 5:39 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 51 min |
| Aug 11, 7:18 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 47 min |
| Aug 11, 8:44 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 61 min |
| Aug 11, 9:25 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 65 min |
| Aug 11, 10:06 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 64 min |
| Aug 11, 10:07 PM CDT | Tornado Warning | UNR | Perkins | 63 min |
| Aug 11, 10:44 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 61 min |
| Aug 11, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Corson, Dewey, Edmunds, Faulk and 4 more | 6 hr |
| Aug 11, 11:01 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 64 min |
| Aug 11, 11:14 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 66 min |
| Aug 11, 11:34 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 51 min |
| Aug 11, 11:44 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 61 min |
| Aug 12, 12:11 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 64 min |
| Aug 12, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 48 min |
| Aug 12, 12:19 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 66 min |
| Aug 12, 12:44 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 61 min |
| Aug 12, 1:11 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 64 min |
| Aug 12, 1:27 AM CDT | Tornado Warning | ABR | Dewey | 33 min |
| Aug 12, 1:44 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 61 min |
| Aug 12, 1:47 AM CDT | Severe Thunderstorm Warning | ABR | Walworth | 63 min |
| Aug 12, 2:05 AM CDT | Severe Thunderstorm Warning | ABR | Campbell | 65 min |
| Aug 12, 5:03 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 47 min |
| Aug 12, 5:26 AM CDT | Tornado Warning | ABR | Brown, Spink | 49 min |
| Aug 14, 3:51 AM CDT | Severe Thunderstorm Warning | UNR | Haakon | 44 min |
| Aug 15, 3:15 PM CDT | Severe Thunderstorm Watch | SPC | Corson, Harding, Perkins | 6 hr |
| Aug 20, 6:10 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 45 min |
| Aug 20, 8:36 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 49 min |
| Aug 20, 10:03 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 47 min |
| Aug 20, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 33 min |
| Aug 20, 10:26 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 34 min |
| Aug 20, 10:51 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 34 min |
| Aug 20, 11:33 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 62 min |
| Aug 20, 11:33 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 32 min |
| Aug 20, 11:47 PM CDT | Tornado Warning | FSD | Kingsbury | 33 min |
| Aug 21, 2:27 AM CDT | Severe Thunderstorm Warning | FSD | Lake, Moody | 33 min |
| Aug 21, 1:56 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| Aug 22, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Clark, Codington, Day, Deuel, Edmunds and 7 more | 6 hr |
| Aug 22, 8:37 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 63 min |
| Aug 22, 8:56 PM CDT | Severe Thunderstorm Warning | ABR | Day, Spink | 64 min |
| Aug 22, 9:16 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 64 min |
| Aug 22, 9:40 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 65 min |
| Aug 22, 9:59 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 66 min |
| Aug 22, 10:20 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 65 min |
| Aug 22, 11:03 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Hamlin | 62 min |
| Aug 27, 3:21 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 64 min |
| Aug 28, 1:07 AM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 48 min |
| Aug 28, 1:55 AM CDT | Severe Thunderstorm Warning | ABR | Day | 35 min |
| Aug 28, 2:12 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 63 min |
| Aug 28, 2:42 AM CDT | Severe Thunderstorm Warning | ABR | Marshall | 63 min |
| Aug 28, 3:29 AM CDT | Severe Thunderstorm Warning | ABR | Grant | 46 min |
| Aug 29, 1:52 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 48 min |
| Aug 29, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Bennett, Butte, Custer, Fall River, Harding, Jackson and 5 more | 7 hr |
| Aug 29, 2:39 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 46 min |
| Aug 29, 3:27 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 63 min |
| Aug 29, 4:52 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 63 min |
| Aug 29, 5:36 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| Aug 29, 5:47 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 48 min |
| Aug 29, 6:51 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 49 min |
| Aug 29, 7:42 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 33 min |
| Aug 29, 8:01 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 49 min |
| Aug 29, 8:22 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 58 min |
| Aug 29, 10:34 PM CDT | Severe Thunderstorm Warning | ABR | Hyde | 46 min |
| Aug 30, 12:15 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 65 min |
| Aug 30, 12:32 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 63 min |
| Aug 30, 3:28 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 62 min |
| Aug 30, 3:42 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 63 min |
| Aug 31, 6:04 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 46 min |
| Aug 31, 6:33 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 62 min |
| Aug 31, 6:49 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 46 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 | 73 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Flooding | |
| Flash Flood Warning | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County9
- Corson County9
- Meade County7
- Lawrence County7
- Perkins County7
- Spink County7
- Butte County6
- Harding County6
- Day County5
- Brown County5
- Jackson County5
- Roberts County4
- Codington County4
- Marshall County4
- Dewey County4
- Kingsbury County4
- Custer County3
- Grant County3
- Campbell County3
- Clark County3
- Fall River County2
- Deuel County2
- Haakon County2
- Ziebach County2
- Todd County2
- Edmunds County2
- Faulk County2
- McPherson County2
- Walworth County2
- Tripp County2
- Beadle County2
- Hamlin County2
- Lyman County2
- Jones County2
- Potter County1
- Charles Mix County1
- Gregory County1
- Miner County1
- Lake County1
- Moody County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.