Alert archive / Ohio / Mesoscale Discussions in 2011
Mesoscale Discussion 1923
The Storm Prediction Center issued this mesoscale discussion at Aug 9, 2011, 8:31 PM EDT for 5 states. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Aug 9, 2011, 8:31 PM EDT (00:31 UTC)
- Expired
- Aug 9, 2011, 10:00 PM EDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 72 counties
Bartholomew County, IN, Brown County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Franklin County, IN, Jennings County, IN, Johnson County, IN, Monroe County, IN, Ohio County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Ashland County, OH, Ashtabula County, OH, Butler County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Geauga County, OH, Greene County, OH, Guernsey County, OH, Hamilton County, OH, Harrison County, OH, Highland County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Muskingum County, OH, Perry County, OH, Pickaway County, OH, Portage County, OH, Preble County, OH, Richland County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Union County, OH, Warren County, OH, Wayne County, OH, Beaver County, PA, Crawford County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Hancock County, WV
The radar
The Cincinnati radar (KILN), 111 km from the middle of the area, began a volume at 00:32 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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.5 hours before the alert went out and 109 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
- 494 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1492 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
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Mesoscale Discussions in Ohio, 2011Mesoscale Discussions in Indiana, 2011Mesoscale Discussions in Pennsylvania, 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.