Alert archive / South Dakota / Jackson County / Mesoscale Discussions
Mesoscale Discussions in Jackson County, South Dakota, 2021
27 mesoscale discussions in 2021. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.
Jackson County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Mesoscale Discussions
- 27
- Busiest month
- June7 mesoscale discussions
- Busiest day
- June 11, 20213 mesoscale discussions
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 10, 12:12 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Mar 14, 11:40 AM MDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 14, 5:20 PM MDT | Mesoscale Discussion | SPC | 6 hr |
| May 21, 9:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| May 23, 5:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 7, 2:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 8, 2:24 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 10:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 10, 2:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 10, 7:28 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jun 10, 10:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 10, 10:50 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jul 3, 5:33 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 5, 12:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 8, 6:08 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jul 13, 10:30 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 25, 2:28 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 5:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Aug 14, 12:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 26, 6:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 30, 6:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 1, 4:39 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 8:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 1, 10:36 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Oct 9, 4:50 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Dec 10, 1:39 AM MST | Mesoscale Discussion | SPC | 4 hr |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.