Alert archive / Tennessee / Tornado Warnings in 2021

Tornado Warning 81, NWS Memphis, TN

December 11, 20214 counties in Tennessee

NWS Memphis, TN issued this tornado warning at Dec 11, 2021, 1:53 AM CST for 4 counties in Tennessee. It was in force for 25 min. 1 report 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 11, 2021, 1:53 AM CST (07:53 UTC)
Expired
Dec 11, 2021, 2:18 AM CST
In force
25 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Benton County, TN, Carroll County, TN, Decatur County, TN, Henderson County, TN

The radar

The Ft Campbell radar (KHPX), 111 km from the middle of the area, began a volume at 07:54 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

TimeReportWhereRemark
Dec 11, 2:02 AM CSTTORNADO4 S Holladay, TNA BRIEF EF-0 TORNADO FORMED NEAR ORA BAWCUM LANE AND VERLIE INMAN ROAD, DAMAGING A MOBILE HOME AND CAUSING SIGNIFICANT TREE DAMAGE.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Dec 10, 3:07 PM CSTTornado WatchSPC11 hr
Dec 10, 6:21 PM CSTTornado WatchSPC10 hr
Dec 10, 10:44 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.9 hours before the alert went out and 130 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 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 182 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 square meters per square second.1939587897Sfc1 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
182 J/kg
Mixed-layer CIN
-168 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

053 
WFUS54 KMEG 110753
TORMEG
TNC005-017-039-077-110830-
/O.NEW.KMEG.TO.W.0081.211211T0753Z-211211T0830Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
153 AM CST Sat Dec 11 2021

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northeastern Henderson County in western Tennessee...
  Southern Benton County in western Tennessee...
  Southeastern Carroll County in western Tennessee...
  Northern Decatur County in western Tennessee...

* Until 230 AM CST.
    
* At 153 AM CST, a severe thunderstorm producing a tornado was
  located over Natchez Trace State Park, moving northeast at 70 mph.

  HAZARD...Tornado and quarter size hail.

  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 tornadic thunderstorm will remain over mainly rural areas of
  northeastern Henderson, southern Benton, southeastern Carroll and
  northern Decatur Counties, including the following locations...
  Westport, Parker's Cross Roads, Holladay, Dollar, Sugar Tree,
  Jeannette, Yuma, Cozette, I-40 Near The Tennessee River and Nathan
  Bedford Forrest State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3613 8792 3603 8800 3600 8800 3597 8802
      3594 8800 3594 8793 3587 8794 3583 8797
      3577 8799 3565 8834 3583 8844 3615 8792
TIME...MOT...LOC 0753Z 239DEG 60KT 3578 8830 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

SMW
2 follow-up statements
604 
WWUS54 KMEG 110809
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
209 AM CST Sat Dec 11 2021

TNC017-077-110819-
/O.CAN.KMEG.TO.W.0081.000000T0000Z-211211T0830Z/
Henderson TN-Carroll TN-
209 AM CST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTHEASTERN HENDERSON AND SOUTHEASTERN
CARROLL COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 500 AM CST for western
Tennessee.

LAT...LON 3587 8794 3583 8797 3577 8799 3574 8806
      3597 8821 3598 8819 3603 8800 3600 8800
      3598 8802 3595 8802 3594 8798 3594 8793
TIME...MOT...LOC 0809Z 239DEG 60KT 3592 8802 

$$

TNC005-039-110830-
/O.CON.KMEG.TO.W.0081.000000T0000Z-211211T0830Z/
Benton TN-Decatur TN-
209 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 AM CST FOR SOUTHERN
BENTON AND NORTHEASTERN DECATUR COUNTIES...
    
At 209 AM CST, a severe thunderstorm producing a tornado was located
7 miles south of New Johnsonville, or 9 miles south of Camden, moving
northeast at 70 mph.

HAZARD...Tornado and 60 mph wind gusts.

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.

Locations impacted include...
Camden, Holladay, Cozette, I-40 Near The Tennessee River and Sugar
Tree.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3587 8794 3583 8797 3577 8799 3574 8806
      3597 8821 3598 8819 3603 8800 3600 8800
      3598 8802 3595 8802 3594 8798 3594 8793
TIME...MOT...LOC 0809Z 239DEG 60KT 3592 8802 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

SMW
293 
WWUS54 KMEG 110818
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
218 AM CST Sat Dec 11 2021

TNC005-039-110828-
/O.CAN.KMEG.TO.W.0081.000000T0000Z-211211T0830Z/
Benton TN-Decatur TN-
218 AM CST Sat Dec 11 2021

...THE TORNADO WARNING FOR SOUTHERN BENTON AND NORTHEASTERN DECATUR
COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 500 AM CST for western
Tennessee.

LAT...LON 3587 8794 3583 8797 3577 8799 3574 8806
      3597 8821 3598 8819 3603 8800 3600 8800
      3598 8802 3595 8802 3594 8798 3594 8793
TIME...MOT...LOC 0816Z 239DEG 60KT 3600 8786 

$$

SMW

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 7:28 PM CSTTornado Warning EmergencyTornado observedConsiderable damage threatMEGDyer, Lake, Lauderdale47 min
Dec 10, 8:04 PM CSTTornado Warning EmergencyTornado observedCatastrophic damage threatMEGDyer, Lake, Obion41 min
Dec 10, 8:28 PM CSTTornado Warning Tornado observedConsiderable damage threatMEGLake, Obion30 min
Dec 10, 9:24 PM CSTTornado WarningMEGLauderdale51 min
Dec 10, 9:25 PM CSTSevere Thunderstorm Warning Considerable damage threatMEGTipton50 min
Dec 10, 9:52 PM CSTTornado WarningMEGDyer, Lake, Obion38 min
Dec 10, 10:01 PM CSTTornado WarningMEGDyer, Haywood, Lauderdale44 min
Dec 10, 10:27 PM CSTTornado WarningMEGCrockett, Dyer, Gibson, Obion, Weakley48 min
Dec 10, 10:34 PM CSTTornado WarningMEGObion27 min
Dec 10, 10:59 PM CSTTornado Warning Tornado observedConsiderable damage threatMEGHenry, Weakley46 min
Dec 10, 11:20 PM CSTSevere Thunderstorm WarningMEGDyer, Lauderdale15 min
Dec 10, 11:25 PM CSTSevere Thunderstorm WarningMEGShelby9 min
Dec 10, 11:37 PM CSTTornado Warning Tornado observedConsiderable damage threatMEGHenry27 min
Dec 10, 11:41 PM CSTAreal Flood AdvisoryMEGDyer, Gibson, Henry, Lauderdale, Obion, Weakley3 hr
Dec 10, 11:48 PM CSTSevere Thunderstorm WarningMEGFayette, Shelby42 min
Dec 10, 11:52 PM CSTTornado WarningMEGShelby, Tipton34 min
Dec 11, 12:05 AM CSTTornado WarningMEGShelby22 min
Dec 11, 12:26 AM CSTSpecial Weather StatementMEGHenry34 min
Dec 11, 12:30 AM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Shelby, Tipton30 min
Dec 11, 12:35 AM CSTAreal Flood AdvisoryMEGShelby4 hr
Dec 11, 12:36 AM CSTTornado Warning Tornado observedMEGFayette, Hardeman, Haywood24 min
Dec 11, 12:56 AM CSTAreal Flood AdvisoryMEGHenry, Weakley3 hr
Dec 11, 12:57 AM CSTSevere Thunderstorm WarningMEGCarroll, Crockett, Fayette, Gibson, Hardeman, Haywood and 1 more48 min
Dec 11, 12:59 AM CSTSevere Thunderstorm WarningMEGFayette, Hardeman, Shelby31 min
Dec 11, 1:25 AM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Chester, Decatur, Gibson, Hardeman and 2 more65 min
Dec 11, 1:30 AM CSTSpecial Weather StatementMEGFayette, Hardeman30 min
Dec 11, 1:32 AM CSTTornado WarningMEGCarroll, Chester, Henderson, Madison28 min
Dec 11, 2:26 AM CSTSpecial Weather StatementMEGDecatur, Hardin, McNairy34 min
Dec 11, 2:51 AM CSTFlash Flood WarningMEGShelby2 hr
Dec 11, 3:03 AM CSTSevere Thunderstorm WarningMEGHardeman, McNairy42 min
Dec 11, 3:19 AM CSTAreal Flood AdvisoryMEGChester, Decatur, Fayette, Hardeman, Hardin, Henderson and 1 more3 hr
Dec 11, 3:21 AM CSTSpecial Weather StatementMEGHardin24 min
Dec 11, 3:30 AM CSTTornado WarningMEGHardin, McNairy21 min
Dec 11, 4:07 AM CSTSpecial Weather StatementMEGHardin23 min
Dec 11, 4:32 AM CSTSpecial Weather StatementMEGHardin28 min
Dec 11, 6:56 AM CSTWind AdvisoryMEGBenton, Carroll, Crockett, Dyer, Gibson, Henry and 4 more5 hr

Nearby

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