Alert archive / Tennessee / Tornado Warnings in 2021

Tornado Warning 50, NWS Nashville, TN

December 11, 20214 counties in Tennessee

NWS Nashville, TN issued this tornado warning at Dec 11, 2021, 2:07 AM CST for 4 counties in Tennessee. It was in force for 38 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 11, 2021, 2:07 AM CST (08:07 UTC)
Expired
Dec 11, 2021, 2:45 AM CST
In force
38 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Dickson County, TN, Hickman County, TN, Humphreys County, TN, Perry County, TN

The radar

The Ft Campbell radar (KHPX), 102 km from the middle of the area, began a volume at 08:06 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, 2:15 AM CSTTSTM WND DMG6 N Lobelville, TNNUMEROUS TREES WERE BLOWN DOWN, BLOCKING THE ROAD.
Dec 11, 2:34 AM CSTTORNADO12 Nw Centerville, TNTHIS TORNADO TOUCHED DOWN JUST WEST OF I-40 NEAR MILE MARKER 157 WHERE TREES WERE DAMAGED AND UPROOTED. THE TORNADO CONTINUED NORTHEASTWARD ON THE EAST SIDE OF I-40 BEFORE DISSIPATING BETWEEN I-40 AND HIGHWAY 48. PATH LENGTH 4.66 MILES AND PATH WIDTH 100 YARDS

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, 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, 8.1 hours before the alert went out and 116 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.

784 
WFUS54 KOHX 110807
TOROHX
TNC043-081-085-135-110845-
/O.NEW.KOHX.TO.W.0050.211211T0807Z-211211T0845Z/

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

The National Weather Service in Nashville has issued a

* Tornado Warning for...
  Southwestern Dickson County in Middle Tennessee...
  North central Perry County in Middle Tennessee...
  Humphreys County in Middle Tennessee...
  Northwestern Hickman County in Middle Tennessee...

* Until 245 AM CST.
    
* At 206 AM CST, a severe thunderstorm capable of producing a tornado
  was located 12 miles northeast of Natchez Trace State Park, moving
  east at 60 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...
  Hurricane Mills around 225 AM CST.

Other locations impacted by this tornadic thunderstorm include
Pinewood, Bucksnort and I-40 Near The Tennessee River.

This includes Interstate 40 between mile markers 136 and 165.
 
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 3600 8800 3603 8800 3619 8758 3604 8747
      3590 8741 3580 8790 3579 8797 3583 8797
      3587 8794 3594 8793 3594 8798 3595 8801
      3597 8802
TIME...MOT...LOC 0806Z 248DEG 53KT 3584 8807 

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

$$

10
3 follow-up statements
429 
WWUS54 KOHX 110825
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
225 AM CST Sat Dec 11 2021

TNC043-081-085-135-110845-
/O.CON.KOHX.TO.W.0050.000000T0000Z-211211T0845Z/
Dickson TN-Perry TN-Humphreys TN-Hickman TN-
225 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CST FOR
SOUTHWESTERN DICKSON...NORTH CENTRAL PERRY...HUMPHREYS AND
NORTHWESTERN HICKMAN COUNTIES...
    
At 224 AM CST, a severe thunderstorm capable of producing a tornado
was located near Hurricane Mills, or 15 miles south of Waverly,
moving northeast at 60 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 tornadic thunderstorm will remain over mainly rural areas of
southwestern Dickson, north central Perry, Humphreys and northwestern
Hickman Counties, including the following locations... Pinewood,
Bucksnort and I-40 Near The Tennessee River.

This includes Interstate 40 between mile markers 136 and 165.
 
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 3600 8800 3603 8800 3619 8758 3604 8747
      3590 8741 3580 8790 3579 8797 3583 8797
      3587 8794 3594 8793 3594 8798 3595 8801
      3597 8802
TIME...MOT...LOC 0824Z 237DEG 52KT 3588 8775 

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

$$

10
902 
WWUS54 KOHX 110827
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
227 AM CST Sat Dec 11 2021

TNC043-081-085-135-110845-
/O.CON.KOHX.TO.W.0050.000000T0000Z-211211T0845Z/
Dickson TN-Perry TN-Humphreys TN-Hickman TN-
227 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CST FOR
SOUTHWESTERN DICKSON...NORTH CENTRAL PERRY...HUMPHREYS AND
NORTHWESTERN HICKMAN COUNTIES...
        
At 227 AM CST, a confirmed tornado was located 7 miles southeast of
Hurricane Mills, or 14 miles south of Waverly, moving east at 60 mph.

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

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...
Waverly, New Johnsonville, McEwen, Hurricane Mills, Pinewood,
Bucksnort and I-40 Near The Tennessee River.

This includes Interstate 40 between mile markers 136 and 165.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3600 8800 3603 8800 3619 8758 3604 8747
      3590 8741 3580 8790 3579 8797 3583 8797
      3587 8794 3594 8793 3594 8798 3595 8801
      3597 8802
TIME...MOT...LOC 0827Z 248DEG 53KT 3590 8769 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

10
692 
WWUS54 KOHX 110831
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
231 AM CST Sat Dec 11 2021

TNC135-110841-
/O.CAN.KOHX.TO.W.0050.000000T0000Z-211211T0845Z/
Perry TN-
231 AM CST Sat Dec 11 2021

...THE TORNADO WARNING FOR NORTH CENTRAL PERRY COUNTY 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 Middle
Tennessee.

LAT...LON 3619 8758 3604 8747 3590 8741 3584 8778
      3587 8781 3596 8782 3608 8781 3611 8779
TIME...MOT...LOC 0831Z 226DEG 43KT 3594 8768 

$$

TNC043-081-085-110845-
/O.CON.KOHX.TO.W.0050.000000T0000Z-211211T0845Z/
Dickson TN-Humphreys TN-Hickman TN-
231 AM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CST FOR
SOUTHWESTERN DICKSON...EASTERN HUMPHREYS AND NORTHWESTERN HICKMAN
COUNTIES...
        
At 231 AM CST, a confirmed tornado was located near Hurricane Mills,
or 11 miles southeast of Waverly, moving northeast at 50 mph.

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

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...
Waverly, McEwen, Hurricane Mills, Pinewood and Bucksnort. 

This includes Interstate 40 between mile markers 143 and 165.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3619 8758 3604 8747 3590 8741 3584 8778
      3587 8781 3596 8782 3608 8781 3611 8779
TIME...MOT...LOC 0831Z 226DEG 43KT 3594 8768 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

10

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 11:29 PM CSTTornado Warning Tornado observedOHXStewart46 min
Dec 11, 12:03 AM CSTTornado Warning Tornado observedConsiderable damage threatOHXMontgomery, Stewart16 min
Dec 11, 12:19 AM CSTSevere Thunderstorm WarningOHXMontgomery, Stewart41 min
Dec 11, 1:28 AM CSTSevere Thunderstorm WarningOHXStewart21 min
Dec 11, 1:47 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXDickson, Hickman, Houston, Humphreys, Lewis, Montgomery and 2 more73 min
Dec 11, 2:03 AM CSTTornado WarningOHXHouston, Humphreys, Stewart27 min
Dec 11, 2:23 AM CSTTornado WarningOHXDickson, Houston, Montgomery, Stewart37 min
Dec 11, 2:38 AM CSTTornado WarningOHXDickson, Hickman, Humphreys37 min
Dec 11, 2:39 AM CSTTornado WarningOHXCheatham, Dickson, Montgomery14 min
Dec 11, 2:47 AM CSTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Hickman, Lewis, Maury and 5 more58 min
Dec 11, 2:58 AM CSTTornado WarningOHXCheatham, Davidson, Dickson, Williamson32 min
Dec 11, 2:59 AM CSTTornado WarningOHXDavidson, Williamson31 min
Dec 11, 3:19 AM CSTSevere Thunderstorm WarningOHXDavidson, Hickman, Lewis, Marshall, Maury, Robertson and 5 more41 min
Dec 11, 3:21 AM CSTTornado WarningOHXDavidson, Sumner, Wilson39 min
Dec 11, 3:29 AM CSTSevere Thunderstorm Warning Destructive damage threatOHXDavidson, Rutherford, Smith, Sumner, Trousdale, Williamson and 1 more46 min
Dec 11, 3:33 AM CSTTornado WarningOHXDavidson, Macon, Smith, Sumner, Trousdale, Wilson42 min
Dec 11, 3:46 AM CSTTornado WarningOHXClay, Macon, Sumner, Trousdale44 min
Dec 11, 3:48 AM CSTSevere Thunderstorm WarningOHXLewis, Perry, Wayne42 min
Dec 11, 3:50 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXClay, DeKalb, Jackson, Macon, Putnam, Smith and 3 more17 min
Dec 11, 3:56 AM CSTTornado WarningOHXLewis, Perry, Wayne13 min
Dec 11, 4:07 AM CSTTornado WarningOHXClay, Jackson, Macon, Overton, Smith, Trousdale38 min
Dec 11, 4:11 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXClay, Fentress, Jackson, Macon, Overton, Pickett and 4 more34 min
Dec 11, 4:33 AM CSTTornado WarningOHXClay, Fentress, Overton, Pickett42 min
Dec 11, 5:01 AM CSTSevere Thunderstorm WarningOHXGiles, Lawrence, Lewis, Marshall, Maury29 min
Dec 11, 5:21 AM CSTSevere Thunderstorm WarningOHXOverton, Putnam27 min
Dec 11, 5:39 AM CSTSevere Thunderstorm WarningOHXGiles, Lawrence, Wayne36 min
Dec 11, 5:56 AM CSTSevere Thunderstorm WarningOHXGiles, Lawrence, Marshall, Maury34 min
Dec 11, 6:13 AM CSTTornado WarningOHXGiles15 min
Dec 11, 6:58 AM CSTSevere Thunderstorm WarningOHXBedford, Coffee, Grundy, Warren32 min
Dec 11, 7:22 AM CSTSevere Thunderstorm WarningOHXCoffee, Grundy38 min
Dec 11, 7:35 AM CSTTornado WarningOHXGrundy25 min

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.