Alert archive / Tennessee / Severe Thunderstorm Watches in 2020
Severe Thunderstorm Watch 94
The Storm Prediction Center issued this severe thunderstorm watch at Apr 8, 2020, 10:16 PM CDT for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2020, 10:16 PM CDT (03:16 UTC)
- Expired
- Apr 9, 2020, 3:55 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 101 counties
Colbert County, AL, Cullman County, AL, DeKalb County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Gilmer County, GA, Gordon County, GA, Habersham County, GA, Lumpkin County, GA, Murray County, GA, Pickens County, GA, Rabun County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA, Avery County, NC, Buncombe County, NC, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Carter County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Franklin County, TN, Grainger County, TN, Greene County, TN, Grundy County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jackson County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Lincoln County, TN, Loudon County, TN, Marion County, TN, Marshall County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Polk County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Washington County, TN, White County, TN, City of Bristol, VA, City of Norton, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA
The radar
The Knoxville radar (KMRX), 68 km from the middle of the area, began a volume at 03:16 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 10:43 PM CDT | Severe Thunderstorm Warning | OHX | Cannon, DeKalb, Rutherford, Smith, Warren, Wilson | 47 min |
| Apr 9, 12:01 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale | 29 min |
| Apr 9, 12:06 AM CDT | Severe Thunderstorm Warning | MRX | Bledsoe, Loudon, McMinn, Meigs, Monroe, Rhea and 1 more | 24 min |
| Apr 9, 12:38 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale | 37 min |
| Apr 9, 12:57 AM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 33 min |
| Apr 9, 1:09 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale | 38 min |
| Apr 9, 1:11 AM CDT | Severe Thunderstorm Warning | MRX | Lee, Russell, Scott, Wise, City of Norton | 49 min |
| Apr 9, 1:14 AM CDT | Severe Thunderstorm Warning | GSP | Graham, Swain | 46 min |
| Apr 9, 1:35 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lawrence, Limestone, Morgan | 40 min |
| Apr 9, 1:39 AM CDT | Severe Thunderstorm Warning | HUN | Madison, Marshall, Morgan | 37 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 9:52 PM CDT | Mesoscale Discussion | SPC | Colbert, DeKalb, Jackson, Lauderdale, Lawrence, Limestone and 3 more | 113 min |
| Apr 9, 1:10 AM CDT | Mesoscale Discussion | SPC | Blount, Cherokee, Colbert, Cullman, DeKalb, Etowah and 14 more | 95 min |
| Apr 8, 7:46 PM CDT | Mesoscale Discussion | SPC | Anderson, Ballard, Boone, Bourbon, Boyle, Bracken and 61 more | 119 min |
| Apr 8, 9:14 PM CDT | Mesoscale Discussion | SPC | Bath, Boyd, Breathitt, Carter, Clay, Elliott and 30 more | 3 hr |
| Apr 8, 9:51 PM CDT | Tornado Watch | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 31 more | 5 hr |
| Apr 9, 1:03 AM CDT | Severe Thunderstorm Watch | SPC | Alleghany, Ashe, Watauga | 3 hr |
| Apr 9, 2:36 AM CDT | Mesoscale Discussion | SPC | Alleghany, Ashe, Stokes, Surry | 84 min |
| Apr 8, 7:04 PM CDT | Tornado Watch | SPC | Benton, Carroll, Cheatham, Chester, Crockett, Davidson and 37 more | 7 hr |
| Apr 8, 11:50 PM CDT | Mesoscale Discussion | SPC | Alleghany, Bath, Bland, Craig, Giles, Highland and 7 more | 115 min |
| Apr 9, 11:01 AM CDT | Severe Thunderstorm Watch | SPC | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 4 hr |
Nearby
Severe Thunderstorm Watches in Tennessee, 2020Severe Thunderstorm Watches in Georgia, 2020Severe Thunderstorm Watches in North Carolina, 2020Every severe thunderstorm watch in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.