Alert archive / Ohio / Mesoscale Discussions in 2011
Mesoscale Discussion 1124
The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2011, 8:22 AM EDT for 21 counties in Ohio; 7 counties in Pennsylvania; Hancock County, West Virginia. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2011, 8:22 AM EDT (12:22 UTC)
- Expired
- Jun 7, 2011, 10:15 AM EDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
All 29 counties
Ashland County, OH, Ashtabula County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Cuyahoga County, OH, Geauga County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Wayne County, OH, Beaver County, PA, Butler County, PA, Crawford County, PA, Erie County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Hancock County, WV
The radar
The Pittsburgh radar (KPBZ), 72 km from the middle of the area, began a volume at 12:23 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
Pittsburgh, PA (KPIT), launched 12:00Z, 0.4 hours before the alert went out and 89 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
- 682 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1272 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 7, 5:29 AM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Columbiana, Cuyahoga, Erie, Geauga and 11 more | 3 hr |
| Jun 7, 6:47 AM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Carroll, Columbiana, Coshocton, Cuyahoga and 18 more | 5 hr |
| Jun 7, 10:32 AM EDT | Mesoscale Discussion | SPC | Ashland, Athens, Belmont, Carroll, Coshocton, Crawford and 25 more | 88 min |
| Jun 7, 2:56 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Champaign, Clark, Clermont, Clinton and 15 more | 94 min |
| Jun 7, 6:04 PM EDT | Mesoscale Discussion | SPC | Logan, McDowell, Mercer, Mingo, Monroe, Raleigh and 2 more | 116 min |
Nearby
Mesoscale Discussions in Ohio, 2011Mesoscale Discussions in Pennsylvania, 2011Mesoscale Discussions in West Virginia, 2011Every mesoscale discussion in 2011
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.