Alert archive / Tennessee / Mesoscale Discussions in 2014
Mesoscale Discussion 826
The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2014, 11:53 PM CDT for Limestone County, Alabama; Catoosa County, Georgia; 52 counties in Tennessee. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2014, 11:53 PM CDT (04:53 UTC)
- Expired
- Jun 5, 2014, 1:30 AM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 54 counties
Limestone County, AL, Catoosa County, GA, Bedford County, TN, Benton County, TN, Bledsoe County, TN, Bradley County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Franklin County, TN, Gibson County, TN, Giles County, TN, Grundy County, TN, Hamilton County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Montgomery County, TN, Moore County, TN, Obion County, TN, Perry County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Sequatchie County, TN, Smith County, TN, Stewart County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 72 km from the middle of the area, began a volume at 04:55 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, 4.9 hours before the alert went out and 59 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
- 1296 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1296 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.6
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 |
|---|---|---|---|---|
| Jun 5, 2:14 AM CDT | Mesoscale Discussion | SPC | DeKalb, Jackson, Lauderdale, Limestone, Madison | 91 min |
| Jun 5, 1:22 PM CDT | Mesoscale Discussion | SPC | Marion | 53 min |
| Jun 5, 2:27 PM CDT | Severe Thunderstorm Watch | SPC | Blount, Calhoun, Cherokee, Clay, Cleburne, Colbert and 19 more | 6 hr |
| Jun 5, 5:10 PM CDT | Mesoscale Discussion | SPC | Blount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 5 more | 95 min |
| Jun 5, 6:44 PM CDT | Severe Thunderstorm Watch | SPC | Baldwin, Banks, Barrow, Bibb, Bleckley, Butts and 54 more | 3 hr |
| Jun 4, 7:00 PM CDT | Tornado Watch | SPC | Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 17 more | 6 hr |
| Jun 4, 7:24 PM CDT | Tornado Watch | SPC | Benton, Cannon, Carroll, Cheatham, Clay, Cumberland and 28 more | 8 hr |
| Jun 4, 9:45 PM CDT | Mesoscale Discussion | SPC | Blount, Carter, Cocke, Grainger, Greene, Hamblen and 10 more | 2 hr |
| Jun 5, 9:27 AM CDT | Mesoscale Discussion | SPC | Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more | 63 min |
| Jun 5, 10:06 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Chester, Crockett, Decatur, Dyer and 15 more | 7 hr |
Nearby
Mesoscale Discussions in Tennessee, 2014Mesoscale Discussions in Alabama, 2014Mesoscale Discussions in Georgia, 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.