Alert archive / Tennessee / Tornado Warnings in 2012
Tornado Warning 7, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Feb 29, 2012, 11:02 PM EST for 4 counties in Tennessee. It was in force for 43 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
- Feb 29, 2012, 11:02 PM EST (04:02 UTC)
- Expired
- Feb 29, 2012, 11:45 PM EST
- In force
- 43 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Campbell County, TN, Claiborne County, TN, Scott County, TN, Union County, TN
The radar
The Knoxville radar (KMRX), 65 km from the middle of the area, began a volume at 04:03 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 nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.0 hours before the alert went out and 237 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.
- Mixed-layer CAPE
- 843 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 7.5
The text
As transmitted, in the capitals the NWS used until 2016.
058 WFUS54 KMRX 010402 TORMRX TNC013-025-151-173-010445- /O.NEW.KMRX.TO.W.0007.120301T0402Z-120301T0445Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MORRISTOWN TN 1102 PM EST WED FEB 29 2012 THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A * TORNADO WARNING FOR... CAMPBELL COUNTY IN EAST TENNESSEE... CLAIBORNE COUNTY IN EAST TENNESSEE... SCOTT COUNTY IN EAST TENNESSEE... UNION COUNTY IN EAST TENNESSEE... * UNTIL 1145 PM EST * AT 1058 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES NORTHWEST OF LA FOLLETTE. DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 50 MPH. * LOCATIONS IN THE WARNING INCLUDE... JELLICO...WHITE OAK...FINCASTLE AND CLAIRFIELD. 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. 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. && LAT...LON 3659 8373 3634 8383 3645 8438 3660 8430 TIME...MOT...LOC 0402Z 279DEG 44KT 3651 8418 $$ MJB
3 follow-up statements
404 WWUS54 KMRX 010415 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1115 PM EST WED FEB 29 2012 TNC013-025-151-173-010445- /O.CON.KMRX.TO.W.0007.000000T0000Z-120301T0445Z/ SCOTT TN-UNION TN-CAMPBELL TN-CLAIBORNE TN- 1115 PM EST WED FEB 29 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EST FOR CLAIBORNE...CAMPBELL...UNION AND SCOTT COUNTIES... AT 1112 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR WHITE OAK...OR 9 MILES NORTHEAST OF LA FOLLETTE...MOVING EAST AT 45 MPH. LOCATIONS IN THE WARNING INCLUDE... CLAIRFIELD. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3659 8373 3634 8383 3645 8438 3660 8430 TIME...MOT...LOC 0415Z 276DEG 40KT 3649 8402 $$ MJB
145 WWUS54 KMRX 010427 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1127 PM EST WED FEB 29 2012 TNC151-010437- /O.CAN.KMRX.TO.W.0007.000000T0000Z-120301T0445Z/ SCOTT TN- 1127 PM EST WED FEB 29 2012 ...THE TORNADO WARNING FOR SCOTT COUNTY IS CANCELLED... LAT...LON 3643 8424 3660 8412 3659 8373 3634 8383 TIME...MOT...LOC 0427Z 273DEG 40KT 3651 8386 $$ TNC013-025-173-010445- /O.CON.KMRX.TO.W.0007.000000T0000Z-120301T0445Z/ UNION TN-CAMPBELL TN-CLAIBORNE TN- 1127 PM EST WED FEB 29 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EST FOR CLAIBORNE...CAMPBELL AND UNION COUNTIES... AT 1121 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR CLAIRFIELD...OR 14 MILES NORTHEAST OF LA FOLLETTE...MOVING EAST AT 45 MPH. LOCATIONS IN THE WARNING INCLUDE... MAINLY RURAL AREAS OFCLAIBORNE COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3643 8424 3660 8412 3659 8373 3634 8383 TIME...MOT...LOC 0427Z 273DEG 40KT 3651 8386 $$ MJB
196 WWUS54 KMRX 010443 SVSMRX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1143 PM EST WED FEB 29 2012 TNC013-025-173-010452- /O.EXP.KMRX.TO.W.0007.000000T0000Z-120301T0445Z/ UNION TN-CAMPBELL TN-CLAIBORNE TN- 1143 PM EST WED FEB 29 2012 ...THE TORNADO WARNING FOR CLAIBORNE...CAMPBELL AND UNION COUNTIES WILL EXPIRE AT 1145 PM EST... THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE LEVELS AND EXITED OUT OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 3643 8424 3660 8412 3659 8373 3634 8383 TIME...MOT...LOC 0442Z 273DEG 40KT 3650 8365 $$ MJB
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 29, 7:20 PM EST | Tornado Warning | MRX | Blount, Loudon, Monroe, Sevier | 40 min |
| Feb 29, 7:58 PM EST | Severe Thunderstorm Warning | MRX | Blount, Cocke, Sevier | 17 min |
| Feb 29, 10:46 PM EST | Severe Thunderstorm Warning | MRX | Campbell, Scott | 29 min |
| Feb 29, 11:39 PM EST | Severe Thunderstorm Warning | MRX | Hawkins | 36 min |
| Feb 29, 11:50 PM EST | Tornado Warning | MRX | Hawkins, Sullivan | 25 min |
| Mar 1, 12:12 AM EST | Tornado Warning | MRX | Sullivan | 33 min |
| Mar 1, 1:16 AM EST | Areal Flood Advisory | MRX | Sullivan | 119 min |
| Mar 1, 2:44 AM EST | Severe Thunderstorm Warning | MRX | Cocke, Sevier | 31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.