Alert archive / Ohio / Mesoscale Discussions / 2009
Mesoscale Discussions in Ohio, April 2009
6 mesoscale discussions in April 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 April 2009. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- April 6, 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 |
|---|---|---|---|---|
| Apr 2, 5:35 PM EDT | Mesoscale Discussion | SPC | Brown, Clermont, Hamilton | 85 min |
| Apr 2, 9:02 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Crawford and 28 more | 118 min |
| Apr 5, 6:10 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Hamilton and 5 more | 65 min |
| Apr 5, 8:12 PM EDT | Mesoscale Discussion | SPC | Adams, Gallia, Jackson, Lawrence, Meigs, Pike and 3 more | 63 min |
| Apr 6, 12:08 AM EDT | Mesoscale Discussion | SPC | Athens, Gallia, Hocking, Jackson, Lawrence, Meigs and 3 more | 67 min |
| Apr 25, 7:15 PM EDT | Mesoscale Discussion | SPC | Fulton, Williams | 60 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Brown County2
- Clermont County2
- Hamilton County2
- Butler County2
- Fulton County2
- Montgomery County2
- Preble County2
- Warren County2
- Williams County2
- Adams County2
- Pike County2
- Gallia County2
- Jackson County2
- Lawrence County2
- Meigs County2
- Scioto County2
- Vinton County2
- Allen County1
- Auglaize County1
- Champaign County1
- Clark County1
- Crawford County1
- Darke County1
- Defiance County1
- Erie County1
- Greene County1
- Hancock County1
- Hardin County1
- Henry County1
- Huron County1
- Logan County1
- Lucas County1
- Marion County1
- Mercer County1
- Miami County1
- Ottawa County1
- Paulding County1
- Putnam County1
- Sandusky County1
- Seneca 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.