Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 56, NWS Morristown, TN

March 2, 2012Scott County, Virginia; 5 counties in Tennessee

NWS Morristown, TN issued this tornado warning at Mar 2, 2012, 9:59 PM EST for Scott County, Virginia; 5 counties in Tennessee. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 2, 2012, 9:59 PM EST (02:59 UTC)
Expired
Mar 2, 2012, 10:45 PM EST
In force
46 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

Counties Claiborne County, TN, Grainger County, TN, Greene County, TN, Hancock County, TN, Hawkins County, TN, Scott County, VA

The radar

The Knoxville radar (KMRX), 44 km from the middle of the area, began a volume at 03:01 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 2, 3:19 PM ESTTornado WatchSPC8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.0 hours before the alert went out and 283 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-03-03Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2012-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 442 square meters per square second.1939587897117Sfc1 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
518 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
442 m²/s²
0-3 km storm-relative helicity
585 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

182 
WFUS54 KMRX 030259
TORMRX
TNC025-057-059-067-073-VAC169-030345-
/O.NEW.KMRX.TO.W.0056.120303T0259Z-120303T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
959 PM EST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  CLAIBORNE COUNTY IN EAST TENNESSEE...
  GRAINGER COUNTY IN EAST TENNESSEE...
  GREENE COUNTY IN EAST TENNESSEE...
  HANCOCK COUNTY IN EAST TENNESSEE...
  HAWKINS COUNTY IN EAST TENNESSEE...
  SCOTT COUNTY IN SOUTHWEST VIRGINIA...

* UNTIL 1045 PM EST

* AT 1000 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES EAST OF
  TAZEWELL...OR 11 MILES NORTH OF RUTLEDGE. DOPPLER RADAR SHOWED THIS
  TORNADO MOVING EAST AT 55 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  SNEEDVILLE...ROGERSVILLE...BEAN STATION...SURGOINSVILLE...THORN
  HILL...HOWARD QUARTER...EVANSTON...MOORESBURG...TREADWAY...
  KLONDIKE...ST. CLAIR...KYLES FORD...MCCLOUD...ROMEO...KEPLER...
  BAILEYTON...JEAROLDSTOWN...OKOLONA...CHURCH HILL AND CLINCHPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FRIDAY EVENING
FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE AND SOUTHWEST
VIRGINIA.

&&

LAT...LON 3673 8270 3648 8265 3645 8270 3641 8269
      3642 8263 3630 8264 3628 8311 3634 8316
      3631 8318 3627 8328 3627 8331 3630 8333
      3627 8336 3625 8355 3659 8362 3659 8298
      3670 8292
TIME...MOT...LOC 0259Z 256DEG 46KT 3642 8347

$$

DH
1 follow-up statement
749 
WWUS54 KMRX 030320
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1020 PM EST FRI MAR 2 2012

TNC025-030328-
/O.CAN.KMRX.TO.W.0056.000000T0000Z-120303T0345Z/
CLAIBORNE TN-
1020 PM EST FRI MAR 2 2012

...THE TORNADO WARNING FOR EXTREME EASTERN CLAIBORNE COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FRIDAY EVENING 
FOR SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE AND SOUTHWEST 
VIRGINIA.

&&

LAT...LON 3673 8270 3648 8265 3645 8270 3641 8269
      3641 8263 3630 8264 3628 8311 3634 8316
      3631 8318 3632 8320 3627 8328 3630 8333
      3628 8337 3636 8339 3646 8336 3659 8322
      3659 8298 3670 8290
TIME...MOT...LOC 0318Z 260DEG 54KT 3667 8285 3639 8323

$$

TNC057-059-067-073-VAC169-030345-
/O.CON.KMRX.TO.W.0056.000000T0000Z-120303T0345Z/
GRAINGER TN-HANCOCK TN-HAWKINS TN-SCOTT VA-GREENE TN-
1020 PM EST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM EST FOR 
NORTHEAST GREENE...SOUTHWEST SCOTT...HAWKINS...HANCOCK AND NORTHEAST 
GRAINGER COUNTIES...

AT 1015 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF STORMS CAPABLE OF PRODUCING A TORNADO...LOCATED 
ALONG A LINE EXTENDING FROM 9 MILES WEST OF CLINCHPORT TO BEAN 
STATION...AND WAS MOVING EAST AT 60 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  ROGERSVILLE...SURGOINSVILLE...KLONDIKE...CLINCHPORT...ST. CLAIR...
  OKOLONA...MCCLOUD...ROMEO...KEPLER...BAILEYTON...JEAROLDSTOWN AND
  CHURCH HILL.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM THIS EVENING FOR 
NORTHEAST TENNESSEE AND SOUTHWEST VIRGINIA.

&&

LAT...LON 3673 8270 3648 8265 3645 8270 3641 8269
      3641 8263 3630 8264 3628 8311 3634 8316
      3631 8318 3632 8320 3627 8328 3630 8333
      3628 8337 3636 8339 3646 8336 3659 8322
      3659 8298 3670 8290
TIME...MOT...LOC 0318Z 260DEG 54KT 3667 8285 3639 8323

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 7:14 PM ESTTornado WarningMRXLee, Scott, Wise, City of Norton46 min
Mar 2, 8:21 PM ESTTornado WarningMRXLee39 min
Mar 2, 8:56 PM ESTTornado WarningMRXLee, Scott49 min
Mar 2, 9:45 PM ESTTornado WarningMRXRussell, Scott, Washington, City of Bristol60 min
Mar 2, 10:44 PM ESTSevere Thunderstorm WarningMRXRussell, Scott, Washington, City of Bristol46 min
Mar 2, 7:02 PM ESTTornado WarningMRXBlount, Cocke, Jefferson, Sevier43 min
Mar 2, 7:06 PM ESTTornado WarningMRXPolk39 min
Mar 2, 7:10 PM ESTSevere Thunderstorm WarningMRXBradley, Hamilton50 min
Mar 2, 7:10 PM ESTTornado WarningMRXCampbell, Scott50 min
Mar 2, 7:40 PM ESTTornado WarningMRXCocke, Sevier35 min
Mar 2, 7:48 PM ESTTornado WarningMRXCampbell, Claiborne, Scott42 min
Mar 2, 7:49 PM ESTTornado WarningMRXBradley, Hamilton, Polk26 min
Mar 2, 8:07 PM ESTTornado WarningMRXBledsoe, Rhea38 min
Mar 2, 8:10 PM ESTTornado WarningMRXPolk35 min
Mar 2, 8:29 PM ESTSevere Thunderstorm WarningMRXAnderson, Campbell, Morgan, Scott46 min
Mar 2, 8:35 PM ESTTornado WarningMRXPolk40 min
Mar 2, 8:38 PM ESTTornado WarningMRXLoudon, Morgan, Rhea, Roane37 min
Mar 2, 9:05 PM ESTTornado WarningMRXAnderson, Knox, Morgan, Roane40 min
Mar 2, 9:14 PM ESTSevere Thunderstorm WarningMRXAnderson, Campbell, Claiborne, Grainger, Scott, Union46 min
Mar 2, 9:41 PM ESTTornado WarningMRXAnderson, Grainger, Jefferson, Knox, Sevier, Union34 min
Mar 2, 9:59 PM ESTSevere Thunderstorm WarningMRXBlount, Knox, Sevier22 min
Mar 2, 10:05 PM ESTTornado WarningMRXCocke, Grainger, Greene, Hamblen, Hawkins, Jefferson and 1 more25 min
Mar 2, 10:27 PM ESTSevere Thunderstorm WarningMRXCocke, Greene, Hamblen, Sevier, Unicoi48 min
Mar 2, 10:57 PM ESTSevere Thunderstorm WarningMRXUnicoi33 min

Nearby

Tornado Warnings in Tennessee, 2012Tornado Warnings in Virginia, 2012Every tornado warning in 2012Tornadoes in 2012

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.