Alert archive / Tennessee / Mesoscale Discussions in 2016
Mesoscale Discussion 599
The Storm Prediction Center issued this mesoscale discussion at May 11, 2016, 2:40 AM CDT for 5 counties in Kentucky; 18 counties in Tennessee. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- May 11, 2016, 2:40 AM CDT (07:40 UTC)
- Expired
- May 11, 2016, 4:15 AM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 23 counties
Allen County, KY, Logan County, KY, Monroe County, KY, Simpson County, KY, Todd County, KY, Cannon County, TN, Cheatham County, TN, Clay County, TN, Davidson County, TN, DeKalb County, TN, Jackson County, TN, Macon County, TN, Montgomery County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 28 km from the middle of the area, began a volume at 07:41 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, 7.7 hours before the alert went out and 37 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
- 1257 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1467 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 7:42 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Calloway, Christian, Clinton and 9 more | 93 min |
| May 10, 11:39 PM CDT | Mesoscale Discussion | SPC | Bell, Breathitt, Clay, Estill, Floyd, Harlan and 18 more | 96 min |
| May 11, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | Daviess, Henderson, McLean, Union, Webster | 12 hr |
| May 11, 5:30 PM CDT | Mesoscale Discussion | SPC | Anderson, Boyle, Breckinridge, Bullitt, Butler, Casey and 27 more | 2 hr |
| May 11, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 53 more | 7 hr |
| May 10, 10:22 PM CDT | Mesoscale Discussion | SPC | Anderson, Campbell, Cumberland, Davidson, DeKalb, Fentress and 16 more | 53 min |
| May 10, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Campbell, Cannon, Cheatham, Claiborne, Clay and 28 more | 7 hr |
Nearby
Mesoscale Discussions in Tennessee, 2016Mesoscale Discussions in Kentucky, 2016Every mesoscale discussion in 2016
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.