Alert archive / Missouri / Mesoscale Discussions / 2009
Mesoscale Discussions in Missouri, December 2009
6 mesoscale discussions in December 2009. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in December 2009. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- December 25, 20092 mesoscale discussions
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 |
|---|---|---|---|---|
| Dec 8, 11:22 AM CST | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 25 more | 5 hr |
| Dec 8, 9:38 PM CST | Mesoscale Discussion | SPC | Andrew, Atchison, DeKalb, Gentry, Grundy, Harrison and 5 more | 6 hr |
| Dec 23, 10:31 AM CST | Mesoscale Discussion | SPC | Barton, Bates, Cass, Cedar, Clay, Dade and 11 more | 89 min |
| Dec 24, 1:32 PM CST | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Caldwell, Cass, Clay and 11 more | 4 hr |
| Dec 24, 8:18 PM CST | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Carroll, Cass and 21 more | 4 hr |
| Dec 24, 11:54 PM CST | Mesoscale Discussion | SPC | Andrew, Atchison, Bates, Buchanan, Cass, Clay and 9 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Andrew County4
- Atchison County4
- Clay County4
- DeKalb County4
- Gentry County4
- Holt County4
- Jackson County4
- Nodaway County4
- Platte County4
- Ray County4
- Worth County4
- Cass County4
- Buchanan County3
- Clinton County3
- Harrison County3
- Bates County3
- Caldwell County2
- Carroll County2
- Daviess County2
- Grundy County2
- Mercer County2
- Putnam County2
- Barton County2
- Cedar County2
- Dade County2
- Henry County2
- Jasper County2
- Johnson County2
- Lafayette County2
- McDonald County2
- Newton County2
- St. Clair County2
- Vernon County2
- Adair County1
- Chariton County1
- Clark County1
- Knox County1
- Lewis County1
- Linn County1
- Livingston 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.