Alert archive / Kentucky / Mesoscale Discussions in 2014
Mesoscale Discussion 1491
The Storm Prediction Center issued this mesoscale discussion at Jul 27, 2014, 6:28 PM CDT for 62 counties in Kentucky; 22 counties in Tennessee; 8 counties in Virginia. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2014, 6:28 PM CDT (23:28 UTC)
- Expired
- Jul 27, 2014, 8:00 PM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 92 counties
Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Bourbon County, KY, Boyle County, KY, Breathitt County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Fayette County, KY, Floyd County, KY, Franklin County, KY, Garrard County, KY, Green County, KY, Harlan County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, McCreary 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, Owsley County, KY, Perry County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Scott County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Anderson County, TN, Campbell County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Fentress County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jackson County, TN, Jefferson County, TN, Knox County, TN, Macon County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Scott County, TN, Sullivan County, TN, Union County, TN, Washington County, TN, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA
The radar
The Jackson,KY radar (KJKL), 112 km from the middle of the area, began a volume at 23:29 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
Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 223 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
- 1964 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 2.3
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 |
|---|---|---|---|---|
| Jul 26, 8:11 PM CDT | Mesoscale Discussion | SPC | Anderson, Breckinridge, Bullitt, Butler, Carroll, Crittenden and 25 more | 64 min |
| Jul 26, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 50 more | 3 hr |
| Jul 26, 10:29 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 54 more | 61 min |
| Jul 27, 3:34 AM CDT | Mesoscale Discussion | SPC | Anderson, Boyle, Bullitt, Casey, Garrard, Green and 14 more | 116 min |
| Jul 27, 10:19 AM CDT | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Boyle, Breckinridge and 61 more | 116 min |
| Jul 27, 12:00 PM CDT | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 65 more | 11 hr |
| Jul 27, 12:44 PM CDT | Tornado Watch | SPC | Boone, Boyd, Bracken, Campbell, Carroll, Carter and 10 more | 9 hr |
| Jul 27, 2:14 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Bath, Bell, Bourbon and 53 more | 2 hr |
| Jul 27, 9:08 AM CDT | Mesoscale Discussion | SPC | Greensville, Southampton, City of Emporia, City of Franklin, City of Suffolk | 67 min |
| Jul 27, 3:49 PM CDT | Mesoscale Discussion | SPC | Carroll, Floyd, Franklin, Grayson, Henry, Patrick and 7 more | 116 min |
| Jul 27, 5:32 PM CDT | Tornado Watch | SPC | Grayson, Smyth | 6 hr |
| Jul 27, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | Clarke, Frederick, Shenandoah, Warren, City of Winchester | 7 hr |
Nearby
Mesoscale Discussions in Kentucky, 2014Mesoscale Discussions in Tennessee, 2014Mesoscale Discussions in Virginia, 2014Every mesoscale discussion in 2014
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.