Alert archive / Tennessee / Tornado Warnings in 2012

Tornado Warning 31, NWS Morristown, TN

March 2, 20124 counties in Tennessee

NWS Morristown, TN issued this tornado warning at Mar 2, 2012, 4:33 PM CST for 4 counties in Tennessee. It was in force for 27 min. 5 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
Mar 2, 2012, 4:33 PM CST (22:33 UTC)
Expired
Mar 2, 2012, 5:00 PM CST
In force
27 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

Counties Bledsoe County, TN, Hamilton County, TN, Meigs County, TN, Rhea County, TN

The radar

The Northeast Alabama radar (KHTX), 113 km from the middle of the area, began a volume at 22:35 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
Mar 2, 4:45 PM CSTTSTM WND DMGDayton, TNMULTIPLE TREES DOWN AROUND 845PM NEAR HIGHWAY 27
Mar 2, 4:45 PM CSTTSTM WND DMGSale Creek, TNCOUPLE OF TREES DOWN NORTHERN PART OF HAMITON COUNTY
Mar 2, 4:45 PM CSTTSTM WND DMGS Brayton, TNTREES DOWN COUNTYWIDE BLEDSOE COUNTY
Mar 2, 4:45 PM CSTTORNADODayton, TNA DOUBLE-WIDE TRAILOR WAS PULLED OFF ITS FOUNDATION AND FLIPPED.
Mar 2, 5:10 PM CSTTSTM WND DMGDayton, TNTREES DOWN NEAR DAYTON

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
Mar 2, 2:19 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.6 hours before the alert went out and 164 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 12:00Z on 2012-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1667 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 12:00Z on 2012-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.1939587897117136Sfc1 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
1667 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

346 
WFUS54 KMRX 022233
TORMRX
TNC007-065-121-143-022300-
/O.NEW.KMRX.TO.W.0031.120302T2233Z-120302T2300Z/

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

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN BLEDSOE COUNTY IN EAST TENNESSEE...
  NORTHERN HAMILTON COUNTY IN EAST TENNESSEE...
  MEIGS COUNTY IN EAST TENNESSEE...
  RHEA COUNTY IN EAST TENNESSEE...

* UNTIL 600 PM EST/500 PM CST/

* AT 430 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES NORTH OF
  SODDY-DAISY...OR 10 MILES EAST OF DUNLAP. DOPPLER RADAR SHOWED THIS
  TORNADO MOVING EAST AT 55 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  DAYTON...SALE CREEK...GRAYSVILLE...BIG SPRING AND OLD WASHINGTON.

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 EST FRIDAY
EVENING/1000 PM CST FRIDAY EVENING/ FOR SOUTHWEST NORTH CAROLINA AND
EAST TENNESSEE AND SOUTHWEST VIRGINIA.

&&

LAT...LON 3533 8522 3548 8526 3558 8484 3543 8481
      3542 8482 3539 8484
TIME...MOT...LOC 2233Z 257DEG 47KT 3540 8517

$$
DGS
1 follow-up statement
832 
WWUS54 KMRX 022248
SVSMRX

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

TNC007-065-022258-
/O.CAN.KMRX.TO.W.0031.000000T0000Z-120302T2300Z/
BLEDSOE TN-HAMILTON TN-
548 PM EST FRI MAR 2 2012

...THE TORNADO WARNING FOR NORTHERN HAMILTON AND SOUTHERN BLEDSOE
COUNTIES IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EST FRIDAY
EVENING/1000 PM CST FRIDAY EVENING/ FOR SOUTHWEST NORTH CAROLINA AND
EAST TENNESSEE AND SOUTHWEST VIRGINIA.

LAT...LON 3538 8500 3538 8503 3541 8502 3544 8511
      3545 8511 3546 8513 3548 8512 3549 8514
      3551 8514 3558 8484 3543 8482 3539 8484
      3537 8499
TIME...MOT...LOC 2248Z 251DEG 46KT 3547 8495

$$

TNC121-143-022300-
/O.CON.KMRX.TO.W.0031.000000T0000Z-120302T2300Z/
RHEA TN-MEIGS TN-
548 PM EST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EST FOR MEIGS AND
RHEA COUNTIES...

AT 544 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR DAYTON...MOVING
EAST AT 55 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  BIG SPRING AND OLD WASHINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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

&&

LAT...LON 3538 8500 3538 8503 3541 8502 3544 8511
      3545 8511 3546 8513 3548 8512 3549 8514
      3551 8514 3558 8484 3543 8482 3539 8484
      3537 8499
TIME...MOT...LOC 2248Z 251DEG 46KT 3547 8495

$$

DGS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 2:00 AM CSTWind AdvisoryMRXBlount, Carter, Cocke, Greene, Johnson, Sevier and 1 more21 hr
Mar 2, 9:58 AM CSTSevere Thunderstorm WarningMRXHawkins, Sullivan32 min
Mar 2, 9:59 AM CSTFlood WatchMRXAnderson, Bledsoe, Blount, Bradley, Campbell, Carter and 27 more14 hr
Mar 2, 10:25 AM CSTTornado WarningMRXBledsoe, Sequatchie35 min
Mar 2, 10:31 AM CSTTornado WarningMRXMarion44 min
Mar 2, 10:39 AM CSTTornado WarningMRXMorgan22 min
Mar 2, 10:49 AM CSTTornado WarningMRXHamilton, Marion41 min
Mar 2, 10:55 AM CSTTornado WarningMRXCampbell, Morgan, Scott35 min
Mar 2, 10:57 AM CSTTornado WarningMRXBledsoe, Rhea33 min
Mar 2, 11:16 AM CSTTornado WarningMRXHamilton, Marion, Sequatchie44 min
Mar 2, 11:25 AM CSTTornado WarningMRXClaiborne, Hancock35 min
Mar 2, 11:29 AM CSTTornado WarningMRXCampbell, Claiborne31 min
Mar 2, 11:30 AM CSTTornado WarningMRXLoudon, Meigs, Rhea, Roane30 min
Mar 2, 11:44 AM CSTSevere Thunderstorm WarningMRXHamilton, Meigs, Rhea31 min
Mar 2, 11:50 AM CSTTornado WarningMRXBradley, Hamilton, McMinn, Polk25 min
Mar 2, 12:04 PM CSTSevere Thunderstorm WarningMRXBlount, Knox41 min
Mar 2, 12:19 PM CSTTornado WarningMRXKnox, Sevier26 min
Mar 2, 12:23 PM CSTTornado WarningMRXBradley, McMinn, Monroe, Polk37 min
Mar 2, 12:39 PM CSTTornado WarningMRXCocke, Grainger, Hamblen, Jefferson, Knox, Sevier36 min
Mar 2, 12:49 PM CSTTornado WarningMRXBlount, Monroe41 min
Mar 2, 1:13 PM CSTSevere Thunderstorm WarningMRXBlount, Monroe47 min
Mar 2, 2:34 PM CSTTornado WarningMRXBledsoe, Marion, Sequatchie41 min
Mar 2, 2:59 PM CSTSevere Thunderstorm WarningMRXLoudon, McMinn, Monroe, Roane46 min
Mar 2, 3:14 PM CSTSevere Thunderstorm WarningMRXBledsoe, Meigs, Rhea46 min
Mar 2, 3:24 PM CSTTornado WarningMRXMarion, Sequatchie51 min
Mar 2, 3:55 PM CSTSevere Thunderstorm WarningMRXLoudon, Roane50 min
Mar 2, 4:24 PM CSTSevere Thunderstorm WarningMRXScott36 min
Mar 2, 4:29 PM CSTSevere Thunderstorm WarningMRXMarion46 min
Mar 2, 4:29 PM CSTTornado WarningMRXAnderson, Knox31 min
Mar 2, 4:38 PM CSTTornado WarningMRXScott37 min
Mar 2, 4:57 PM CSTSevere Thunderstorm WarningMRXMcMinn, Meigs, Rhea18 min
Mar 2, 4:57 PM CSTTornado WarningMRXCampbell, Claiborne, Scott33 min
Mar 2, 5:03 PM CSTSevere Thunderstorm WarningMRXHamilton, Marion42 min
Mar 2, 5:15 PM CSTSevere Thunderstorm WarningMRXLoudon, McMinn, Monroe45 min
Mar 2, 5:28 PM CSTTornado WarningMRXBradley, Hamilton47 min
Mar 2, 5:30 PM CSTTornado WarningMRXBlount, Loudon, McMinn, Monroe45 min

Nearby

Tornado 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.