Alert archive / Ohio / Mesoscale Discussions in 2012
Mesoscale Discussion 1347
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2012, 6:47 PM EDT for Monroe County, Michigan; 20 counties in Ohio. It was in force for 58 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2012, 6:47 PM EDT (22:47 UTC)
- Expired
- Jul 1, 2012, 7:45 PM EDT
- In force
- 58 min
- Issued by
- the Storm Prediction Center
All 21 counties
Monroe County, MI, Ashland County, OH, Coshocton County, OH, Crawford County, OH, Erie County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH
The radar
The Cleveland radar (KCLE), 99 km from the middle of the area, began a volume at 22:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 10.8 hours before the alert went out and 157 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1587 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | Berrien, Cass | 6 hr |
| Jul 1, 5:19 PM EDT | Mesoscale Discussion | SPC | Lenawee, Monroe | 56 min |
| Jul 1, 3:56 PM EDT | Mesoscale Discussion | SPC | Allen, Athens, Auglaize, Champaign, Clark, Clinton and 36 more | 94 min |
| Jul 1, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Clinton, Columbiana, Coshocton and 28 more | 6 hr |
| Jul 1, 5:40 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 19 more | 4 hr |
| Jul 1, 5:45 PM EDT | Mesoscale Discussion | SPC | Athens, Champaign, Clark, Clinton, Darke, Delaware and 20 more | 60 min |
| Jul 1, 5:59 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Butler, Clermont, Hamilton, Scioto | 5 hr |
| Jul 1, 7:22 PM EDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Geauga, Harrison, Jefferson, Mahoning and 4 more | 83 min |
Nearby
Mesoscale Discussions in Ohio, 2012Mesoscale Discussions in Michigan, 2012Every mesoscale discussion in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.