Alert archive / South Dakota / Gregory County
Weather alerts in Gregory County, South Dakota, 1999
53 weather alerts in 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Gregory County and its neighbors
Each county as a circle sized by its count in 1999. Tap one for its archive.
- Alerts
- 53
- Warnings
- 32
- Watches
- 21
- Advisories
- 0
- Busiest month
- June29 alerts
- Busiest day
- June 22, 19999 alerts
Over time
By month
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 | Lasted |
|---|---|---|---|
| May 3, 9:11 PM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| May 3, 9:54 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| May 9, 4:30 PM CDT | Tornado Watch | SPC | 6 hr |
| May 9, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 10, 1:56 AM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| May 10, 2:45 AM CDT | Severe Thunderstorm Warning | FSD | 35 min |
| May 22, 11:39 AM CDT | Severe Thunderstorm Warning | FSD | 51 min |
| May 22, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 3, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 4, 1:08 AM CDT | Severe Thunderstorm Warning | FSD | 37 min |
| Jun 4, 1:41 AM CDT | Severe Thunderstorm Warning | FSD | 64 min |
| Jun 4, 2:30 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 2:38 AM CDT | Severe Thunderstorm Warning | FSD | 52 min |
| Jun 4, 6:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 4, 10:29 PM CDT | Severe Thunderstorm Warning | FSD | 31 min |
| Jun 4, 11:00 PM CDT | Tornado Warning | FSD | 45 min |
| Jun 4, 11:15 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 5, 4:15 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 5, 9:00 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 5, 9:16 PM CDT | Tornado Warning | FSD | 44 min |
| Jun 7, 6:15 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 7, 6:57 PM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| Jun 7, 9:16 PM CDT | Severe Thunderstorm Warning | FSD | 44 min |
| Jun 7, 10:18 PM CDT | Severe Thunderstorm Warning | FSD | 42 min |
| Jun 8, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 4:41 PM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| Jun 22, 5:26 PM CDT | Flash Flood Warning | FSD | 94 min |
| Jun 22, 5:49 PM CDT | Flash Flood Warning | FSD | 46 min |
| Jun 22, 5:49 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jun 22, 6:21 PM CDT | Tornado Warning | FSD | 24 min |
| Jun 22, 6:35 PM CDT | Severe Thunderstorm Warning | FSD | 25 min |
| Jun 22, 6:40 PM CDT | Flash Flood Warning | FSD | 2 hr |
| Jun 22, 6:59 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jun 22, 7:45 PM CDT | Severe Thunderstorm Warning | FSD | 45 min |
| Jun 27, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 2, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 2:17 AM CDT | Severe Thunderstorm Warning | FSD | 48 min |
| Jul 2, 3:07 AM CDT | Severe Thunderstorm Warning | FSD | 43 min |
| Jul 2, 3:52 AM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| Jul 2, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 10:53 PM CDT | Severe Thunderstorm Warning | FSD | 62 min |
| Jul 3, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 4, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 15, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 7:17 PM CDT | Severe Thunderstorm Warning | FSD | 43 min |
| Jul 18, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Jul 18, 8:38 PM CDT | Flash Flood Warning | FSD | 2 hr |
| Jul 27, 6:30 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 12, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | 48 min |
| Sep 2, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 4, 12:46 AM CDT | Flash Flood Warning | FSD | 3 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 | 24 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 7 |
| Flooding | |
| Flash Flood Warning | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.