Alert archive / Ohio / Mesoscale Discussions / 2009
Mesoscale Discussions in Ohio, May 2009
14 mesoscale discussions in May 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 May 2009. Tap one for its archive.
- Mesoscale Discussions
- 14
- Busiest day
- May 16, 20094 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 |
|---|---|---|---|---|
| May 1, 6:36 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Fairfield, Guernsey and 9 more | 54 min |
| May 8, 6:03 PM EDT | Mesoscale Discussion | SPC | Gallia, Lawrence | 87 min |
| May 14, 5:37 AM EDT | Mesoscale Discussion | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 20 more | 53 min |
| May 15, 9:14 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Darke and 11 more | 2 hr |
| May 15, 11:28 PM EDT | Mesoscale Discussion | SPC | Adams, Auglaize, Brown, Butler, Champaign, Clark and 13 more | 2 hr |
| May 16, 12:05 PM EDT | Mesoscale Discussion | SPC | Belmont, Jefferson, Monroe, Washington | 55 min |
| May 16, 2:46 PM EDT | Mesoscale Discussion | SPC | Gallia, Lawrence | 59 min |
| May 28, 1:28 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Fayette and 10 more | 62 min |
| May 28, 4:54 PM EDT | Mesoscale Discussion | SPC | Belmont, Gallia, Harrison, Jefferson, Lawrence, Meigs and 3 more | 66 min |
| May 29, 4:17 PM EDT | Mesoscale Discussion | SPC | Mercer | 88 min |
| May 30, 3:51 PM EDT | Mesoscale Discussion | SPC | Adams, Brown | 84 min |
| May 30, 7:01 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Gallia and 8 more | 59 min |
| May 30, 9:53 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Clark, Clermont and 20 more | 67 min |
| May 30, 11:37 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Clermont, Clinton and 13 more | 23 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gallia County7
- Lawrence County7
- Brown County7
- Butler County7
- Hamilton County7
- Warren County7
- Clermont County6
- Clinton County6
- Highland County6
- Adams County6
- Clark County4
- Fayette County4
- Greene County4
- Montgomery County4
- Preble County4
- Jackson County4
- Pike County4
- Scioto County4
- Belmont County3
- Jefferson County3
- Champaign County3
- Logan County3
- Darke County3
- Mercer County3
- Miami County3
- Ross County3
- Vinton County3
- Meigs County3
- Harrison County2
- Noble County2
- Pickaway County2
- Auglaize County2
- Shelby County2
- Monroe County2
- Washington County2
- Athens County2
- Hocking County2
- Carroll County1
- Columbiana County1
- Coshocton County1
23 more counties
- Fairfield County1
- Guernsey County1
- Licking County1
- Mahoning County1
- Morgan County1
- Muskingum County1
- Perry County1
- Tuscarawas County1
- Crawford County1
- Delaware County1
- Erie County1
- Franklin County1
- Huron County1
- Madison County1
- Marion County1
- Morrow County1
- Richland County1
- Seneca County1
- Union County1
- Wyandot County1
- Allen County1
- Hardin County1
- Van Wert 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.