Alert archive / Kentucky / Mesoscale Discussions in 2011
Mesoscale Discussion 727
The Storm Prediction Center issued this mesoscale discussion at May 11, 2011, 5:07 AM EDT for 22 counties in Kentucky; 21 counties in Ohio. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- May 11, 2011, 5:07 AM EDT (09:07 UTC)
- Expired
- May 11, 2011, 6:00 AM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 43 counties
Bath County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Elliott County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Morgan County, KY, Perry County, KY, Pike County, KY, Rowan County, KY, Wolfe County, KY, Adams County, OH, Auglaize County, OH, Brown County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Fayette County, OH, Greene County, OH, Hardin County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Union County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 93 km from the middle of the area, began a volume at 09:09 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, 9.1 hours before the alert went out and 93 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
- 1068 J/kg
- Mixed-layer CIN
- -186 J/kg
- Mixed-layer LCL
- 2337 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 |
|---|---|---|---|---|
| May 10, 11:17 PM EDT | Mesoscale Discussion | SPC | Bath, Boyd, Breathitt, Carter, Elliott, Fleming and 16 more | 58 min |
| May 11, 12:37 AM EDT | Mesoscale Discussion | SPC | Boyd, Breathitt, Carter, Elliott, Floyd, Greenup and 12 more | 53 min |
| May 11, 1:01 AM EDT | Severe Thunderstorm Watch | SPC | Bath, Boyd, Breathitt, Carter, Elliott, Fleming and 16 more | 5 hr |
Nearby
Mesoscale Discussions in Kentucky, 2011Mesoscale Discussions in Ohio, 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.