Alert archive / Kentucky / Mesoscale Discussions in 2015
Mesoscale Discussion 220
The Storm Prediction Center issued this mesoscale discussion at Apr 7, 2015, 6:34 PM EDT for 41 counties in Kentucky. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2015, 6:34 PM EDT (22:34 UTC)
- Expired
- Apr 7, 2015, 7:30 PM EDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 41 counties
Bath County, KY, Bourbon County, KY, Boyle County, KY, Breathitt County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Garrard County, KY, Harlan County, KY, Jackson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Owsley County, KY, Perry County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Wolfe County, KY
The radar
The Jackson,KY radar (KJKL), 57 km from the middle of the area, began a volume at 22:34 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.6 hours before the alert went out and 216 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
- 631 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 |
|---|---|---|---|---|
| Apr 7, 11:51 AM EDT | Mesoscale Discussion | SPC | Union | 54 min |
| Apr 7, 2:14 PM EDT | Mesoscale Discussion | SPC | Crittenden, Daviess, Hancock, Henderson, McLean, Union and 1 more | 61 min |
| Apr 7, 2:37 PM EDT | Severe Thunderstorm Watch | SPC | Anderson, Bourbon, Boyle, Breckinridge, Bullitt, Butler and 41 more | 5 hr |
| Apr 7, 3:53 PM EDT | Mesoscale Discussion | SPC | Ballard, Breckinridge, Bullitt, Butler, Caldwell, Christian and 21 more | 97 min |
| Apr 7, 4:34 PM EDT | Mesoscale Discussion | SPC | Anderson, Boyle, Bullitt, Edmonson, Franklin, Grayson and 13 more | 86 min |
| Apr 7, 6:58 PM EDT | Severe Thunderstorm Watch | SPC | Bath, Breathitt, Clay, Elliott, Estill, Floyd and 17 more | 2 hr |
Nearby
Mesoscale Discussions in Kentucky, 2015Every mesoscale discussion in 2015
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.