Alert archive / Tennessee / Tornado Warnings in 2012
Tornado Warning 6, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Feb 29, 2012, 7:20 PM EST for 4 counties in Tennessee. It was in force for 40 min. 9 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
- Feb 29, 2012, 7:20 PM EST (00:20 UTC)
- Expired
- Feb 29, 2012, 8:00 PM EST
- In force
- 40 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Blount County, TN, Loudon County, TN, Monroe County, TN, Sevier County, TN
The radar
The Knoxville radar (KMRX), 60 km from the middle of the area, began a volume at 00:20 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 |
|---|---|---|---|
| Feb 29, 7:25 PM EST | FUNNEL CLOUD | 4 W Greenback, TN | FUNNEL CLOUD REPORTED NEAR CHILHOWEE LAKE. |
| Feb 29, 7:25 PM EST | TSTM WND GST 50 | 2 S Lenoir City, TN | |
| Feb 29, 7:30 PM EST | HAIL 0.25 | Greenback, TN | PEA SIZED HAIL IN DOWNTOWN GREENBACK. |
| Feb 29, 7:30 PM EST | TORNADO | 3 Ne Greenback, TN | STORM SURVEY DETERMINED AN EF1 TORNADO TOUCHED DOWN 3 MILES NE OF GREENBACK ON MAPLE LN. PATH LENGTH 3/4 OF A MILE...PATH WIDTH OF 100 YARDS...AND 85 MPH WINDS. |
| Feb 29, 7:35 PM EST | TSTM WND DMG | Greenback, TN | POSSIBLE TORNADO. SEVERAL TREES DOWN AND STRUCTURAL DAMAGE TO STORAGE BUILDING. |
| Feb 29, 7:40 PM EST | HAIL 1.75 | 4 S Maryville, TN | |
| Feb 29, 7:50 PM EST | HAIL 1 | Townsend, TN | |
| Feb 29, 7:55 PM EST | HAIL 1.5 | Wears Valley, TN | |
| Feb 29, 8:02 PM EST | TSTM WND DMG | 7 Sw Pigeon Forge, TN | DISPATCH REPORTED A FEW TREES DOWN ON WALDENS CREEK ROAD. |
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 |
|---|---|---|---|
| Feb 29, 12:31 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 29, 6:37 PM EST | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.3 hours before the alert went out and 246 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.
614
WFUS54 KMRX 010020
TORMRX
TNC009-105-123-155-010100-
/O.NEW.KMRX.TO.W.0006.120301T0020Z-120301T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
ISSUED BY NATIONAL WEATHER SERVICE NASHVILLE TN
720 PM EST WED FEB 29 2012
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* TORNADO WARNING FOR...
BLOUNT COUNTY IN TENNESSEE...
SOUTHEASTERN LOUDON COUNTY IN TENNESSEE...
NORTH CENTRAL MONROE COUNTY IN TENNESSEE...
SEVIER COUNTY IN TENNESSEE...
* UNTIL 800 PM EST
* AT 715 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES SOUTHEAST OF LOUDON...AND MOVING EAST AT
75 MPH.
* THIS DANGEROUS STORM WILL BE NEAR...
MARYVILLE...EAGLETON VILLAGE AND ALCOA AROUND 730 PM EST.
PIGEON FORGE AND GATLINBURG AROUND 750 PM EST.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE CLOVER
HILL...WALLAND...WILDWOOD...TOWNSEND...WEARS VALLEY...HARRISBURG AND
PITTMAN CENTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3576 8435 3583 8418 3579 8414 3585 8413
3583 8413 3585 8408 3583 8405 3585 8405
3584 8401 3588 8403 3589 8399 3584 8385
3595 8370 3597 8356 3592 8347 3591 8334
3565 8330 3566 8334 3560 8345 3557 8431
TIME...MOT...LOC 0020Z 261DEG 64KT 3570 8419
$$
552 follow-up statements
510
WWUS54 KMRX 010040
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
740 PM EST WED FEB 29 2012
TNC009-105-123-155-010100-
/O.CON.KMRX.TO.W.0006.000000T0000Z-120301T0100Z/
LOUDON TN-MONROE TN-SEVIER TN-BLOUNT TN-
740 PM EST WED FEB 29 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM EST FOR BLOUNT...
SEVIER...NORTHERN MONROE AND LOUDON COUNTIES...
AT 738 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR CLOVER HILL...OR
NEAR MARYVILLE...MOVING EAST AT 70 MPH.
THE TORNADO WILL BE NEAR...
GATLINBURG...PIGEON FORGE AND SEVIERVILLE AROUND 800 PM EST.
OTHER LOCATIONS AFFECTED BY THIS SEVERE THUNDERSTORM INCLUDE CADES
COVE...WALLAND...TOWNSEND...WEARS VALLEY AND ELKMONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EST THURSDAY MORNING
FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
&&
LAT...LON 3576 8435 3583 8418 3579 8414 3585 8413
3583 8413 3585 8408 3583 8405 3585 8405
3584 8401 3588 8403 3589 8399 3584 8385
3595 8370 3597 8356 3592 8347 3591 8334
3565 8330 3566 8334 3560 8345 3557 8431
TIME...MOT...LOC 0040Z 266DEG 61KT 3568 8397
$$
DGS177
WWUS54 KMRX 010047
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
747 PM EST WED FEB 29 2012
TNC105-123-010056-
/O.CAN.KMRX.TO.W.0006.000000T0000Z-120301T0100Z/
LOUDON TN-MONROE TN-
747 PM EST WED FEB 29 2012
...THE TORNADO WARNING FOR NORTHERN MONROE AND LOUDON COUNTIES IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST FOR SOUTHWEST
NORTH CAROLINA AND EAST TENNESSEE.
LAT...LON 3560 8418 3565 8413 3568 8416 3576 8415
3577 8418 3583 8413 3584 8401 3588 8402
3584 8385 3595 8368 3597 8356 3592 8347
3591 8334 3565 8330 3566 8334 3560 8345
3558 8413
TIME...MOT...LOC 0046Z 268DEG 62KT 3568 8385
$$
TNC009-155-010100-
/O.CON.KMRX.TO.W.0006.000000T0000Z-120301T0100Z/
SEVIER TN-BLOUNT TN-
747 PM EST WED FEB 29 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM EST FOR BLOUNT
AND SEVIER COUNTIES...
AT 743 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR HAPPY VALLEY...OR
6 MILES SOUTHEAST OF MARYVILLE...MOVING EAST AT 70 MPH.
THE TORNADO WILL BE NEAR...
PIGEON FORGE AND SEVIERVILLE AROUND 755 PM EST.
GATLINBURG AROUND 800 PM EST.
OTHER LOCATIONS AFFECTED BY THIS SEVERE THUNDERSTORM INCLUDE WEARS
VALLEY AND ELKMONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EST THURSDAY MORNING
FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
&&
LAT...LON 3560 8418 3565 8413 3568 8416 3576 8415
3577 8418 3583 8413 3584 8401 3588 8402
3584 8385 3595 8368 3597 8356 3592 8347
3591 8334 3565 8330 3566 8334 3560 8345
3558 8413
TIME...MOT...LOC 0046Z 268DEG 62KT 3568 8385
$$
DGSThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 11:02 PM EST | Tornado Warning | MRX | Campbell, Claiborne, Scott, Union | 43 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.