Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 154, NWS Nashville, TN

December 11, 20218 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Dec 11, 2021, 1:47 AM CST for 8 counties in Tennessee. It was in force for 73 min. 10 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, 1:47 AM CST (07:47 UTC)
Expired
Dec 11, 2021, 3:00 AM CST
In force
73 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Tornado
Possible
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

Counties Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lewis County, TN, Montgomery County, TN, Perry County, TN, Stewart County, TN

The radar

The Ft Campbell radar (KHPX), 109 km from the middle of the area, began a volume at 07:47 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, 2:15 AM CSTTORNADO6 Wnw Lobelville, TNDAMAGE FROM THIS TORNADO STARTED IN NORTHERN PERRY COUNTY WITH SOME UPROOTED TREES ALONG CROOKED CREEK ROAD. AN OVERTURNED RV AND ROOF WAS TORN OFF A BARN ALONG HIGHWAY 13 IN HUMPHREYS COUNTY AS THE TORNADO MOVED NORTHEAST, AND UPROOTED AS WELL AS SNAPPED TREE
Dec 11, 2:20 AM CSTTSTM WND DMGLobelville, TNTREES DOWN ON POWER LINES. POWER OUTAGES REPORTED THROUGHOUT PERRY COUNTY.
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
Dec 11, 2:42 AM CSTTSTM WND DMG1 Nne Linden, TNFACEBOOK REPORT OF DAMAGE TO OUTSIDE ANIMAL PENS AND LIMBS SNAPPED. TIME ESTIMATED VIA RADAR.
Dec 11, 2:43 AM CSTTORNADO7 Ssw Dickson, TN*** 2 INJ *** TORNADO DAMAGE STARTED JUST NORTH OF I-40 NEAR MILE MARKER 166 ALONG PINEY ROAD WHERE IT SNAPPED AND UPROOTED TREES ON N MOUNT SINAI ROAD. THE MOST INTENSE DAMAGE OCCURRED ON MURRELL DRIVE WHERE MULTIPLE HOMES WERE HEAVILY DAMAGED OR DESTROYED AS
Dec 11, 2:45 AM CSTTSTM WND DMG3 S Dickson, TNAT LEAST 12 STRUCTURES ON MURRELL RAD AND CROSSROAD COWARN ROAD HAD HEAVY DAMAGE. SOME PEOPLE WERE TRAPPED IN THE STRUCTURES.
Dec 11, 2:45 AM CSTTSTM WND DMG3 S Dickson, TNAT LEAST 12 STRUCTURES ON MURRELL ROAD AND COWAN ROAD HAD HEAVY DAMAGE. SOME PEOPLE WERE TRAPPED IN THE STRUCTURES.
Dec 11, 2:45 AM CSTTSTM WND DMG4 Ssw Dickson, TNNUMEROUS TREES DAMAGED ON 200 BLOCK OF MURRELL ROAD IN DICKSON. FACEBOOK REPORT.
Dec 11, 2:46 AM CSTTSTM WND DMG4 Ssw Dickson, TNCORRECTS PREVIOUS TSTM WND DMG REPORT FROM 4 SSW DICKSON. CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 4 SSW DICKSON. NUMEROUS TREES DAMAGED ON 200 BLOCK OF MURRELL ROAD IN DICKSON. FACEBOOK REPORT.

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, 7.8 hours before the alert went out and 121 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.

656 
WUUS54 KOHX 110747
SVROHX
TNC043-081-083-085-101-125-135-161-110900-
/O.NEW.KOHX.SV.W.0154.211211T0747Z-211211T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
147 AM CST Sat Dec 11 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Northwestern Lewis County in Middle Tennessee...
  Western Dickson County in Middle Tennessee...
  Central Montgomery County in Middle Tennessee...
  Southern Stewart County in Middle Tennessee...
  Houston County in Middle Tennessee...
  Perry County in Middle Tennessee...
  Humphreys County in Middle Tennessee...
  Hickman County in Middle Tennessee...

* Until 300 AM CST.

* At 146 AM CST, severe thunderstorms were located along a line 
  extending from near Paris to Lexington, moving northeast at 55 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Dickson, Waverly, Hohenwald, Centerville, Camden, Erin, Linden,
  Clarksville, New Johnsonville, McEwen, Burns, Tennessee Ridge,
  Hurricane Mills, Charlotte, Lobelville, Vanleer, Cumberland City,
  Slayden, Kimmins and Palmyra.

This includes the following highways...
 Interstate 40 between mile markers 136 and 172.
 Interstate 24 between mile markers 6 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of 
a building.

&&

LAT...LON 3551 8798 3562 8804 3566 8802 3572 8804
      3577 8798 3592 8793 3594 8793 3595 8801
      3597 8802 3615 8792 3622 8795 3631 8796
      3642 8804 3660 8723 3553 8744 3546 8804
TIME...MOT...LOC 0746Z 242DEG 48KT 3624 8823 3544 8845 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Shamburger
1 follow-up statement
721 
WWUS54 KOHX 110840
SVSOHX

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

TNC161-110850-
/O.CAN.KOHX.SV.W.0154.000000T0000Z-211211T0900Z/
Stewart TN-
240 AM CST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN STEWART COUNTY IS
CANCELLED...

The storms which prompted the warning have 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 3548 8799 3551 8798 3561 8804 3566 8802
      3572 8804 3579 8785 3590 8774 3601 8769
      3631 8760 3638 8759 3651 8762 3660 8723
      3553 8744 3546 8804
TIME...MOT...LOC 0840Z 242DEG 48KT 3655 8750 3575 8773 

$$

TNC043-081-083-085-101-125-135-110900-
/O.CON.KOHX.SV.W.0154.000000T0000Z-211211T0900Z/
Lewis TN-Dickson TN-Montgomery TN-Houston TN-Perry TN-Humphreys TN-
Hickman TN-
240 AM CST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CST
FOR NORTHWESTERN LEWIS...WESTERN DICKSON...CENTRAL MONTGOMERY...
EASTERN HOUSTON...PERRY...EASTERN HUMPHREYS AND HICKMAN COUNTIES...

At 240 AM CST, severe thunderstorms were located along a line
extending from 7 miles south of Fort Campbell to 11 miles northeast
of Linden, moving northeast at 55 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Dickson, Hohenwald, Centerville, Linden, Clarksville, McEwen, Burns,
Charlotte, Lobelville, Vanleer, Slayden, Kimmins, Palmyra, Bucksnort,
Mousetail Landing State Park, Pinewood, Pleasantville, Nunnelly and
Cunningham.

This includes the following highways...
 Interstate 40 between mile markers 146 and 172.
 Interstate 24 between mile markers 6 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3548 8799 3551 8798 3561 8804 3566 8802
      3572 8804 3579 8785 3590 8774 3601 8769
      3631 8760 3638 8759 3651 8762 3660 8723
      3553 8744 3546 8804
TIME...MOT...LOC 0840Z 242DEG 48KT 3655 8750 3575 8773 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

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, 2:03 AM CSTTornado WarningOHXHouston, Humphreys, Stewart27 min
Dec 11, 2:07 AM CSTTornado WarningOHXDickson, Hickman, Humphreys, Perry38 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

Severe Thunderstorm Warnings in Tennessee, 2021Every severe thunderstorm warning 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.