Alert archive / Tennessee / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 350
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2016, 4:35 PM EDT for 19 counties in Kentucky; 25 counties in Tennessee; Lee County, Virginia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2016, 4:35 PM EDT (20:35 UTC)
- Expired
- Jul 7, 2016, 8:30 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 45 counties
Bell County, KY, Breathitt County, KY, Clay County, KY, Estill County, KY, Harlan County, KY, Jackson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, McCreary County, KY, Owsley County, KY, Perry County, KY, Pulaski County, KY, Rockcastle County, KY, Wayne County, KY, Whitley County, KY, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Claiborne County, TN, Grainger County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Union County, TN, Lee County, VA
The radar
The Knoxville radar (KMRX), 140 km from the middle of the area, began a volume at 20:38 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 4:49 PM EDT | Flash Flood Warning | JKL | McCreary, Pulaski, Wayne | 3 hr |
| Jul 7, 5:23 PM EDT | Severe Thunderstorm Warning | JKL | McCreary, Pulaski, Wayne, Whitley | 52 min |
| Jul 7, 5:28 PM EDT | Severe Thunderstorm Warning | JKL | Pulaski, Rockcastle | 32 min |
| Jul 7, 5:34 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Scott | 41 min |
| Jul 7, 5:50 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe, Rhea | 25 min |
| Jul 7, 5:55 PM EDT | Flash Flood Warning | JKL | Jackson, Laurel, Rockcastle | 3 hr |
| Jul 7, 6:00 PM EDT | Severe Thunderstorm Warning | JKL | Clay, Estill, Jackson, Laurel, Lee, Owsley and 2 more | 45 min |
| Jul 7, 6:03 PM EDT | Flash Flood Warning | JKL | Knox, Whitley | 3 hr |
| Jul 7, 6:09 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe, Loudon, McMinn, Meigs, Monroe, Rhea and 1 more | 51 min |
| Jul 7, 6:13 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Blount, Campbell, Claiborne, Knox, Loudon and 4 more | 47 min |
| Jul 7, 6:15 PM EDT | Severe Thunderstorm Warning | JKL | Bell, Clay, Knox, Laurel, Whitley | 30 min |
| Jul 7, 6:48 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Sevier | 42 min |
| Jul 7, 6:49 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Blount, Jefferson, Knox, Loudon, Sevier | 41 min |
| Jul 7, 6:53 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Hamblen, Hancock, Hawkins, Jefferson and 1 more | 52 min |
| Jul 7, 7:23 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Cocke, Jefferson, Sevier | 37 min |
| Jul 7, 7:32 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Greene, Hamblen, Jefferson | 58 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.6 hours before the alert went out and 150 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
- 649 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 376 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 1:16 PM EDT | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Crittenden, Daviess and 14 more | 59 min |
| Jul 7, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Ballard, Barren, Boyle and 50 more | 4 hr |
| Jul 7, 3:21 PM EDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Boyle, Breckinridge, Butler and 37 more | 54 min |
| Jul 7, 6:37 PM EDT | Mesoscale Discussion | SPC | Bell, Clay, Harlan, Knox, Laurel, Leslie and 1 more | 53 min |
| Jul 7, 3:42 PM EDT | Mesoscale Discussion | SPC | Anson, Chatham, Cumberland, Durham, Edgecombe, Franklin and 20 more | 63 min |
| Jul 7, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | Anson, Beaufort, Bladen, Brunswick, Columbus, Craven and 27 more | 7 hr |
| Jul 7, 7:21 PM EDT | Severe Thunderstorm Watch | SPC | Buncombe, Graham, Haywood, Henderson, Jackson, Macon and 3 more | 2 hr |
| Jul 7, 7:24 PM EDT | Mesoscale Discussion | SPC | Anson, Beaufort, Bladen, Brunswick, Chatham, Columbus and 30 more | 66 min |
| Jul 7, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | Bedford, Benton, Cannon, Carroll, Cheatham, Clay and 31 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Tennessee, 2016Severe Thunderstorm Watches in Kentucky, 2016Severe Thunderstorm Watches in Virginia, 2016Every severe thunderstorm watch 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.