Alert archive / Tennessee / Tornado Watches in 2022

Tornado Watch 103

April 6, 20224 states

The Storm Prediction Center issued this tornado watch at Apr 6, 2022, 3:59 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 6, 2022, 3:59 PM CDT (20:59 UTC)
Expired
Apr 6, 2022, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 39 counties

DeKalb County, AL, Jackson County, AL, Marshall County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Fannin County, GA, Gilmer County, GA, Gordon County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA, Cherokee County, NC, 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, Hawkins 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

The radar

The Northeast Alabama radar (KHTX), 75 km from the middle of the area, began a volume at 21:00 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
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 6, 4:35 PM CDTSevere Thunderstorm WarningMRXMarion40 min
Apr 6, 4:36 PM CDTSevere Thunderstorm WarningHUNJackson24 min
Apr 6, 4:52 PM CDTSevere Thunderstorm WarningFFCDade23 min
Apr 6, 5:00 PM CDTSevere Thunderstorm WarningMRXHamilton, Marion45 min
Apr 6, 5:26 PM CDTSevere Thunderstorm WarningHUNDeKalb52 min
Apr 6, 7:00 PM CDTFlash Flood WarningMRXPolk2 hr
Apr 6, 7:17 PM CDTSevere Thunderstorm WarningFFCGilmer, Gordon, Murray, Whitfield28 min
Apr 6, 7:45 PM CDTSevere Thunderstorm WarningFFCDawson, Gilmer, Pickens30 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, 9.0 hours before the alert went out and 155 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2022-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2022-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 310 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
310 m²/s²
0-3 km storm-relative helicity
329 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 11:28 AM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Chambers and 21 more3 hr
Apr 6, 11:58 AM CDTMesoscale DiscussionSPCHouston2 hr
Apr 6, 12:59 PM CDTMesoscale DiscussionSPCCullman, Fayette, Franklin, Jackson, Lamar, Lawrence and 5 more2 hr
Apr 6, 1:11 PM CDTSevere Thunderstorm WatchSPCAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 30 more10 hr
Apr 6, 2:58 PM CDTMesoscale DiscussionSPCAutauga, Bibb, Bullock, Chambers, Chilton, Clay and 24 more2 hr
Apr 6, 3:43 PM CDTMesoscale DiscussionSPCDeKalb, Jackson, Limestone, Madison, Marshall, Morgan62 min
Apr 6, 5:06 PM CDTMesoscale DiscussionSPCAutauga, Bibb, Blount, Bullock, Butler, Calhoun and 32 more114 min
Apr 6, 12:32 PM CDTTornado WatchSPCBaldwin, Ben Hill, Berrien, Bibb, Bleckley, Brooks and 73 more10 hr
Apr 6, 2:35 PM CDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Crawford, Crisp, Dodge and 22 more85 min
Apr 6, 3:02 PM CDTMesoscale DiscussionSPCAppling, Bacon, Bryan, Bulloch, Burke, Chatham and 13 more88 min
Apr 6, 3:21 PM CDTTornado WatchSPCAppling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 22 more8 hr
Apr 6, 4:43 PM CDTMesoscale DiscussionSPCRichmond92 min
Apr 6, 6:25 PM CDTMesoscale DiscussionSPCCatoosa, Chattooga, Fannin, Gilmer, Gordon, Murray and 2 more2 hr
Apr 6, 6:28 PM CDTMesoscale DiscussionSPCBaldwin, Ben Hill, Bibb, Bleckley, Butts, Chattahoochee and 38 more2 hr
Apr 5, 7:03 PM CDTMesoscale DiscussionSPCBladen, Brunswick, Columbus, New Hanover, Pender117 min

Nearby

Tornado Watches in Tennessee, 2022Tornado Watches in Georgia, 2022Tornado Watches in Alabama, 2022Every tornado watch in 2022

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.