Alert archive / Kentucky / Mesoscale Discussions in 2013
Mesoscale Discussion 2106
The Storm Prediction Center issued this mesoscale discussion at Dec 21, 2013, 10:33 PM CST for 5 states. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Dec 21, 2013, 10:33 PM CST (04:33 UTC)
- Expired
- Dec 22, 2013, 12:00 AM CST
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 109 counties
Colbert County, AL, Fayette County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Winston County, AL, Clark County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Ohio County, IN, Scott County, IN, Switzerland County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Carroll County, KY, Casey County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Oldham County, KY, Owen County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY, Alcorn County, MS, Chickasaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS, Pontotoc County, MS, Prentiss County, MS, Tishomingo County, MS, Union County, MS, Bedford County, TN, Benton County, TN, Cannon County, TN, Cheatham County, TN, Chester County, TN, Clay County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Giles County, TN, Hardin County, TN, Henderson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 26 km from the middle of the area, began a volume at 04:35 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
Nashville Metro, TN (KBNA), launched 00:00Z, 4.6 hours before the alert went out and 38 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
- 417 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 587 m²/s²
- 0-3 km storm-relative helicity
- 694 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.9
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 |
|---|---|---|---|---|
| Dec 21, 7:40 PM CST | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 3 more | 95 min |
| Dec 21, 8:16 PM CST | Tornado Watch | SPC | Blount, Colbert, Cullman, DeKalb, Fayette, Franklin and 16 more | 6 hr |
| Dec 22, 1:34 AM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 23 more | 56 min |
| Dec 21, 8:03 PM CST | Severe Thunderstorm Watch | SPC | Dearborn, Franklin, Ohio, Ripley, Switzerland | 4 hr |
| Dec 21, 10:38 PM CST | Severe Thunderstorm Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 6 hr |
| Dec 22, 4:12 AM CST | Mesoscale Discussion | SPC | Blount, Bradley, Hamilton, Knox, Loudon, McMinn and 5 more | 63 min |
Nearby
Mesoscale Discussions in Kentucky, 2013Mesoscale Discussions in Tennessee, 2013Mesoscale Discussions in Mississippi, 2013Every mesoscale discussion in 2013
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.