Alert archive / Ohio / Mesoscale Discussions / 2009
Mesoscale Discussions in Ohio, December 2009
3 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
- 3
- Busiest day
- December 9, 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 3:46 AM EST | Mesoscale Discussion | SPC | Brown, Butler, Clermont, Clinton, Hamilton, Highland and 2 more | 59 min |
| Dec 9, 11:02 AM EST | Mesoscale Discussion | SPC | Athens, Belmont, Columbiana, Guernsey, Harrison, Jefferson and 5 more | 88 min |
| Dec 13, 5:16 AM EST | Mesoscale Discussion | SPC | Columbiana, Jefferson, Mahoning, Trumbull | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Columbiana County2
- Jefferson County2
- Brown County1
- Butler County1
- Clermont County1
- Clinton County1
- Hamilton County1
- Highland County1
- Preble County1
- Warren County1
- Athens County1
- Belmont County1
- Guernsey County1
- Harrison County1
- Meigs County1
- Monroe County1
- Morgan County1
- Noble County1
- Washington County1
- Mahoning County1
- Trumbull 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.