Alert archive / Ohio / Mesoscale Discussions in 2012
Mesoscale Discussion 1207
The Storm Prediction Center issued this mesoscale discussion at Jun 18, 2012, 1:38 PM EDT for Monroe County, Michigan; 26 counties in Ohio. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2012, 1:38 PM EDT (17:38 UTC)
- Expired
- Jun 18, 2012, 2:45 PM EDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 27 counties
Monroe County, MI, Ashland County, OH, Carroll County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga 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, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Tuscarawas County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH
The radar
The Cleveland radar (KCLE), 65 km from the middle of the area, began a volume at 17:39 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, 5.6 hours before the alert went out and 170 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1525 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 99 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 |
|---|---|---|---|---|
| Jun 18, 10:33 AM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Eaton, Genesee, Hillsdale, Ingham and 13 more | 2 hr |
| Jun 18, 12:40 PM EDT | Mesoscale Discussion | SPC | Delta, Menominee | 2 hr |
| Jun 18, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | Delta, Dickinson, Iron, Menominee, Schoolcraft | 8 hr |
| Jun 18, 4:50 PM EDT | Mesoscale Discussion | SPC | Antrim, Benzie, Charlevoix, Cheboygan, Crawford, Emmet and 12 more | 85 min |
| Jun 18, 5:46 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 25 more | 6 hr |
| Jun 18, 6:13 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Guernsey, Hocking, Meigs and 7 more | 92 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.