Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 49, NWS Morristown, TN

March 2, 2012Cherokee County, North Carolina; Polk County, Tennessee

NWS Morristown, TN issued this tornado warning at Mar 2, 2012, 8:35 PM EST for Cherokee County, North Carolina; Polk County, Tennessee. It was in force for 40 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, 8:35 PM EST (01:35 UTC)
Expired
Mar 2, 2012, 9:15 PM EST
In force
40 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

Counties Cherokee County, NC, Polk County, TN

The radar

The Knoxville radar (KMRX), 135 km from the middle of the area, began a volume at 01:37 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.6 hours before the alert went out and 198 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, Peachtre/Fal Fld, GA at 00:00Z on 2012-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 540 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, Peachtre/Fal Fld, GA at 00:00Z on 2012-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 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
540 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

202 
WFUS54 KMRX 030135
TORMRX
NCC039-TNC139-030215-
/O.NEW.KMRX.TO.W.0049.120303T0135Z-120303T0215Z/

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

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  CHEROKEE COUNTY IN SOUTHWEST NORTH CAROLINA...
  EASTERN POLK COUNTY IN EAST TENNESSEE...

* UNTIL 915 PM EST

* AT 831 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  NORTHWEST OF DUCKTOWN. DOPPLER RADAR SHOWED THIS TORNADO MOVING
  EAST AT 45 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  DUCKTOWN...MURPHY...TURTLETOWN...VIOLET...HIAWASSE DAM AND UNAKA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL.

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 3503 8440 3518 8441 3527 8401 3525 8400
      3505 8395
TIME...MOT...LOC 0135Z 260DEG 39KT 3509 8442

$$

DGS
2 follow-up statements
529 
WWUS54 KMRX 030146
SVSMRX

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

NCC039-TNC139-030215-
/O.CON.KMRX.TO.W.0049.000000T0000Z-120303T0215Z/
CHEROKEE NC-POLK TN-
846 PM EST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM EST FOR EASTERN
POLK AND CHEROKEE COUNTIES...

AT 842 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR TURTLETOWN...OR 6
MILES NORTHEAST OF DUCKTOWN...MOVING EAST AT 45 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MURPHY...VIOLET...HIAWASSE DAM AND UNAKA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY 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 3503 8440 3518 8441 3527 8401 3525 8400
      3505 8395
TIME...MOT...LOC 0147Z 258DEG 38KT 3512 8428

$$

DGS
164 
WWUS54 KMRX 030206
SVSMRX

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

NCC039-TNC139-030216-
/O.EXP.KMRX.TO.W.0049.000000T0000Z-120303T0215Z/
CHEROKEE NC-POLK TN-
906 PM EST FRI MAR 2 2012

...THE TORNADO WARNING FOR EASTERN POLK AND CHEROKEE COUNTIES WILL
EXPIRE AT 915 PM EST...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE.

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

LAT...LON 3503 8440 3518 8441 3527 8401 3525 8400
      3505 8395
TIME...MOT...LOC 0206Z 258DEG 38KT 3516 8404

$$

DGS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 7:36 PM ESTTornado WarningMRXCherokee24 min
Mar 2, 7:56 PM ESTTornado WarningMRXCherokee, Clay49 min
Mar 2, 8:58 PM ESTTornado WarningMRXCherokee, Clay47 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, 8:21 PM ESTTornado WarningMRXClaiborne, Hancock, Hawkins39 min
Mar 2, 8:29 PM ESTSevere Thunderstorm WarningMRXAnderson, Campbell, Morgan, Scott46 min
Mar 2, 8:38 PM ESTTornado WarningMRXLoudon, Morgan, Rhea, Roane37 min
Mar 2, 8:56 PM ESTTornado WarningMRXHancock, Hawkins, Sullivan49 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, 9:45 PM ESTTornado WarningMRXJohnson, Sullivan60 min
Mar 2, 9:59 PM ESTSevere Thunderstorm WarningMRXBlount, Knox, Sevier22 min
Mar 2, 9:59 PM ESTTornado WarningMRXClaiborne, Grainger, Greene, Hancock, Hawkins46 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, 10:44 PM ESTSevere Thunderstorm WarningMRXGreene, Hawkins, Sullivan, Washington46 min
Mar 2, 10:57 PM ESTSevere Thunderstorm WarningMRXUnicoi33 min

Nearby

Tornado Warnings in North Carolina, 2012Tornado Warnings in Tennessee, 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.