Alert archive / Tennessee / Tornado Warnings in 2012
Tornado Warning 62, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Sep 2, 2012, 5:15 PM CDT for Marion County, Tennessee. It was in force for 45 min. 1 report 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
- Sep 2, 2012, 5:15 PM CDT (22:15 UTC)
- Expired
- Sep 2, 2012, 6:00 PM CDT
- In force
- 45 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
County Marion County, TN
The radar
The Northeast Alabama radar (KHTX), 42 km from the middle of the area, began a volume at 22:17 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 2, 5:50 PM CDT | TSTM WND GST 49 | Jasper, TN |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 2, 2:49 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 10.3 hours before the alert went out and 128 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
- 257 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
961
WFUS54 KMRX 022215
TORMRX
TNC115-022300-
/O.NEW.KMRX.TO.W.0062.120902T2215Z-120902T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
515 PM CDT SUN SEP 2 2012
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN MARION COUNTY IN EAST TENNESSEE...
* UNTIL 600 PM CDT
* AT 513 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES
SOUTHWEST OF SEWANEE...OR 23 MILES NORTHWEST OF BRIDGEPORT. DOPPLER
RADAR SHOWED THIS TORNADO MOVING EAST AT 30 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
JASPER...MONTEAGLE...SOUTH PITTSBURG AND ORME.
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.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR MIDDLE TENNESSEE AND THE WESTERN MOST COUNTIES OF EAST TENNESSEE.
&&
LAT...LON 3525 8585 3525 8582 3523 8578 3522 8574
3524 8570 3528 8571 3530 8560 3500 8559
3500 8587 3523 8587
TIME...MOT...LOC 2214Z 261DEG 25KT 3510 8606
$$
TG2 follow-up statements
917
WWUS54 KMRX 022237
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
537 PM CDT SUN SEP 2 2012
TNC115-022300-
/O.CON.KMRX.TO.W.0062.000000T0000Z-120902T2300Z/
MARION TN-
537 PM CDT SUN SEP 2 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR WESTERN
MARION COUNTY...
AT 534 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES NORTHWEST OF
ORME...OR 15 MILES NORTHWEST OF BRIDGEPORT...MOVING EAST AT 30 MPH.
LOCATIONS IN THE WARNING INCLUDE...
JASPER...MONTEAGLE...SOUTH PITTSBURG AND ORME.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR MIDDLE TENNESSEE. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTHWEST NORTH CAROLINA
AND SOUTHEAST TENNESSEE.
&&
LAT...LON 3525 8585 3525 8582 3523 8578 3522 8574
3524 8570 3528 8571 3530 8560 3500 8559
3500 8587 3523 8587
TIME...MOT...LOC 2236Z 263DEG 25KT 3511 8587
$$
TG274
WWUS54 KMRX 022257
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
557 PM CDT SUN SEP 2 2012
TNC115-022306-
/O.EXP.KMRX.TO.W.0062.000000T0000Z-120902T2300Z/
MARION TN-
557 PM CDT SUN SEP 2 2012
...THE TORNADO WARNING FOR WESTERN MARION COUNTY WILL EXPIRE AT 600
PM CDT...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LEVELS...WITH ROTATION NO LONGER INDICATED ON DOPPLER RADAR.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR MIDDLE TENNESSEE. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTHWEST NORTH CAROLINA
AND SOUTHEAST TENNESSEE.
LAT...LON 3525 8585 3525 8582 3523 8578 3522 8574
3524 8570 3528 8571 3530 8560 3500 8559
3500 8587 3523 8587
TIME...MOT...LOC 2256Z 263DEG 25KT 3513 8570
$$
TGNearby
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.