Alert archive / Tennessee / Tornado Warnings in 2021

Tornado Warning 43, NWS Nashville, TN

December 6, 2021Giles County, Lawrence County, Tennessee

NWS Nashville, TN issued this tornado warning at Dec 6, 2021, 6:40 AM CST for Giles County, Lawrence County, Tennessee. It was in force for 35 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Dec 6, 2021, 6:40 AM CST (12:40 UTC)
Expired: Dec 6, 2021, 7:15 AM CST
In force: 35 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Giles County, TN, Lawrence County, TN

The radar

The Northeast Alabama radar (KHTX), 118 km from the middle of the area, began a volume at 12:44 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 was reported inside it

Time	Report	Where	Remark
Dec 6, 6:48 AM CST	TSTM WND DMG	Lawrenceburg, TN	EMERGENCY MANAGER REPORTED 155 HOUSES WITHOUT POWER DUE TO LIMBS DOWN ON POWER LINES. LOCATIONS AROUND LAWRENCEBURG. TIME ESTIMATED VIA RADAR.
Dec 6, 6:48 AM CST	TSTM WND DMG	Lawrenceburg, TN	TREES ACROSS ROAD ON LOVERS LANE. TIME ESTIMATED VIA RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.7 hours before the alert went out and 118 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 250 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 665 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 509 m²/s²
0-3 km storm-relative helicity: 600 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

As transmitted.

372 
WFUS54 KOHX 061240
TOROHX
TNC055-099-061315-
/O.NEW.KOHX.TO.W.0043.211206T1240Z-211206T1315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Nashville TN
640 AM CST Mon Dec 6 2021

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Central Lawrence County in Middle Tennessee...
  Northwestern Giles County in Middle Tennessee...

* Until 715 AM CST.
    
* At 640 AM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles west of Lawrenceburg, moving east at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Lawrenceburg around 650 AM CST.
  Pulaski around 710 AM CST.

Other locations impacted by this tornadic thunderstorm include
Ethridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3518 8751 3531 8754 3541 8704 3517 8701
TIME...MOT...LOC 1240Z 263DEG 40KT 3526 8746 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Schaper

2 follow-up statements

200 
WWUS54 KOHX 061255
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
655 AM CST Mon Dec 6 2021

TNC055-099-061315-
/O.CON.KOHX.TO.W.0043.000000T0000Z-211206T1315Z/
Lawrence TN-Giles TN-
655 AM CST Mon Dec 6 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM CST FOR EAST
CENTRAL LAWRENCE AND NORTHWESTERN GILES COUNTIES...
    
At 655 AM CST, a severe thunderstorm capable of producing a tornado
was located near Lawrenceburg, moving east at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Pulaski around 710 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3518 8731 3530 8731 3536 8703 3517 8701
TIME...MOT...LOC 1255Z 269DEG 40KT 3523 8725 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Schaper

263 
WWUS54 KOHX 061309
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
709 AM CST Mon Dec 6 2021

TNC055-099-061318-
/O.EXP.KOHX.TO.W.0043.000000T0000Z-211206T1315Z/
Lawrence TN-Giles TN-
709 AM CST Mon Dec 6 2021

...THE TORNADO WARNING FOR EAST CENTRAL LAWRENCE AND NORTHWESTERN
GILES COUNTIES WILL EXPIRE AT 715 AM CST...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning will be allowed to expire.

LAT...LON 3518 8731 3530 8731 3536 8703 3517 8701
TIME...MOT...LOC 1308Z 263DEG 40KT 3525 8709 

$$

Schaper

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 5, 6:25 PM CST	Special Weather Statement	OHX	Hickman	35 min
Dec 6, 12:53 AM CST	Special Weather Statement	OHX	Stewart	52 min
Dec 6, 3:54 AM CST	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	51 min
Dec 6, 4:14 AM CST	Tornado Warning	OHX	Stewart	16 min
Dec 6, 4:39 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery, Robertson	41 min
Dec 6, 4:51 AM CST	Tornado Warning	OHX	Montgomery, Robertson	12 min
Dec 6, 5:09 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Robertson, Sumner, Wilson	36 min
Dec 6, 5:16 AM CST	Special Weather Statement	OHX	Dickson, Hickman, Perry	59 min
Dec 6, 5:46 AM CST	Special Weather Statement	OHX	Macon, Smith, Sumner, Trousdale, Wilson	44 min
Dec 6, 6:02 AM CST	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon, Smith, Trousdale, Wilson	43 min
Dec 6, 6:03 AM CST	Tornado Warning	OHX	Macon, Smith, Trousdale	27 min
Dec 6, 6:32 AM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Wayne	58 min
Dec 6, 6:38 AM CST	Severe Thunderstorm Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett, Putnam and 1 more	37 min
Dec 6, 6:56 AM CST	Tornado Warning	OHX	Clay, Overton, Pickett	19 min
Dec 6, 7:11 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam	49 min
Dec 6, 7:15 AM CST	Tornado Warning	OHX	Fentress, Pickett	30 min
Dec 6, 7:21 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Coffee, Giles, Marshall	39 min
Dec 6, 7:40 AM CST	Tornado Warning	OHX	Bedford, Coffee	21 min
Dec 6, 7:59 AM CST	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Warren	31 min

Nearby

Tornado Warnings in Tennessee, 2021 Every tornado warning in 2021 Tornadoes in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.