Alert archive / Kentucky / Mesoscale Discussions in 2011
Mesoscale Discussion 1971
The Storm Prediction Center issued this mesoscale discussion at Aug 13, 2011, 6:30 PM EDT for 4 states. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2011, 6:30 PM EDT (22:30 UTC)
- Expired
- Aug 13, 2011, 8:00 PM EDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 106 counties
Clark County, IN, Floyd County, IN, Ohio County, IN, Switzerland County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Lewis County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Mason County, KY, McCreary County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Perry County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Adams County, OH, Brown County, OH, Clermont County, OH, Scioto County, OH, Clay County, TN, Fentress County, TN, Jackson County, TN, Macon County, TN, Overton County, TN, Pickett County, TN, Robertson County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN
The radar
The Louisville radar (KLVX), 105 km from the middle of the area, began a volume at 22:31 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 12:00Z, 10.5 hours before the alert went out and 205 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
- 50 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 |
|---|---|---|---|---|
| Aug 13, 12:45 PM EDT | Mesoscale Discussion | SPC | Benton, Carroll, Cass, DeKalb, Elkhart, Fulton and 19 more | 60 min |
| Aug 13, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Benton, Blackford, Carroll, Cass and 30 more | 9 hr |
| Aug 13, 4:29 PM EDT | Mesoscale Discussion | SPC | Allen, Benton, Boone, Carroll, Cass, Clay and 31 more | 91 min |
| Aug 13, 5:53 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Boone, Brown, Clay, Daviess, Decatur and 26 more | 37 min |
| Aug 13, 5:57 PM EDT | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Brown, Clay, Daviess, Decatur and 26 more | 7 hr |
| Aug 13, 7:10 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 35 more | 95 min |
| Aug 13, 5:28 PM EDT | Severe Thunderstorm Watch | SPC | Erie, Hancock, Huron, Lucas, Ottawa, Sandusky and 2 more | 4 hr |
Nearby
Mesoscale Discussions in Kentucky, 2011Mesoscale Discussions in Tennessee, 2011Mesoscale Discussions in Indiana, 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.