Alert archive / Tennessee / Tornado Warnings in 2011
Tornado Warning 97, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Jun 18, 2011, 4:11 PM EDT for Bradley County, McMinn County, Polk County, Tennessee. It was in force for 49 min. 3 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
- Jun 18, 2011, 4:11 PM EDT (20:11 UTC)
- Expired
- Jun 18, 2011, 5:00 PM EDT
- In force
- 49 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Bradley County, TN, McMinn County, TN, Polk County, TN
The radar
The Knoxville radar (KMRX), 147 km from the middle of the area, began a volume at 20:13 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 |
|---|---|---|---|
| Jun 18, 4:15 PM EDT | FUNNEL CLOUD | Conasauga, TN | |
| Jun 18, 4:15 PM EDT | HAIL 1 | Calhoun, TN | |
| Jun 18, 4:20 PM EDT | TSTM WND DMG | 1 Nw Benton, TN | 4 TREES DOWN. |
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 |
|---|---|---|---|
| Jun 18, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.2 hours before the alert went out and 200 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
- 1149 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
556
WFUS54 KMRX 182011
TORMRX
TNC011-107-139-182100-
/O.NEW.KMRX.TO.W.0097.110618T2011Z-110618T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
411 PM EDT SAT JUN 18 2011
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* TORNADO WARNING FOR...
BRADLEY COUNTY IN EAST TENNESSEE...
EXTREME SOUTHERN MCMINN COUNTY IN EAST TENNESSEE...
POLK COUNTY IN EAST TENNESSEE...
* UNTIL 500 PM EDT
* AT 407 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
CHARLESTON...OR 5 MILES NORTHWEST OF BENTON. DOPPLER RADAR SHOWED
THIS TORNADO MOVING EAST AT 40 MPH.
* THIS TORNADIC STORM WILL BE NEAR...
BENTON AROUND 420 PM EDT.
DUCKTOWN AROUND 455 PM EDT.
OTHER LOCATIONS AFFECTED BY THIS TORNADIC THUNDERSTORM INCLUDE
DENTVILLE...RELIANCE...ARCHVILLE AND TURTLETOWN.
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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
&&
LAT...LON 3499 8482 3533 8482 3529 8449 3523 8436
3522 8436 3522 8433 3521 8433 3522 8432
3521 8430 3499 8432
TIME...MOT...LOC 2011Z 285DEG 24KT 3522 8469
$$
173 follow-up statements
199
WWUS54 KMRX 182024
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
424 PM EDT SAT JUN 18 2011
TNC107-182034-
/O.CAN.KMRX.TO.W.0097.000000T0000Z-110618T2100Z/
MCMINN TN-
424 PM EDT SAT JUN 18 2011
...THE TORNADO WARNING FOR EXTREME SOUTHERN MCMINN COUNTY IS
CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
LAT...LON 3533 8481 3529 8475 3529 8472 3527 8475
3526 8474 3526 8471 3524 8471 3527 8467
3526 8452 3528 8448 3522 8436 3521 8432
3499 8432 3499 8482
TIME...MOT...LOC 2024Z 285DEG 24KT 3520 8459
$$
TNC011-139-182100-
/O.CON.KMRX.TO.W.0097.000000T0000Z-110618T2100Z/
BRADLEY TN-POLK TN-
424 PM EDT SAT JUN 18 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR POLK AND
BRADLEY COUNTIES...
AT 418 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR BENTON...MOVING
EAST AT 35 MPH.
THE TORNADO WILL BE NEAR...
DUCKTOWN AROUND 455 PM EDT.
OTHER LOCATIONS AFFECTED BY THIS SEVERE THUNDERSTORM INCLUDE
ARCHVILLE AND TURTLETOWN.
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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
&&
LAT...LON 3533 8481 3529 8475 3529 8472 3527 8475
3526 8474 3526 8471 3524 8471 3527 8467
3526 8452 3528 8448 3522 8436 3521 8432
3499 8432 3499 8482
TIME...MOT...LOC 2024Z 285DEG 24KT 3520 8459
$$
17415
WWUS54 KMRX 182040
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
440 PM EDT SAT JUN 18 2011
TNC011-182050-
/O.CAN.KMRX.TO.W.0097.000000T0000Z-110618T2100Z/
BRADLEY TN-
440 PM EDT SAT JUN 18 2011
...THE TORNADO WARNING FOR BRADLEY COUNTY IS CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
LAT...LON 3508 8474 3510 8474 3516 8470 3522 8470
3524 8472 3527 8467 3526 8452 3528 8448
3522 8436 3522 8433 3521 8432 3499 8432
3499 8477
TIME...MOT...LOC 2040Z 285DEG 24KT 3517 8446
$$
TNC139-182100-
/O.CON.KMRX.TO.W.0097.000000T0000Z-110618T2100Z/
POLK TN-
440 PM EDT SAT JUN 18 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR POLK
COUNTY...
AT 438 PM EDT...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED
NEAR ARCHVILLE...OR 10 MILES EAST OF BENTON...MOVING EAST AT 30 MPH.
THE TORNADO WILL BE NEAR...
DUCKTOWN AROUND 455 PM EDT.
OTHER LOCATIONS AFFECTED BY THIS SEVERE THUNDERSTORM INCLUDE
TURTLETOWN.
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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
&&
LAT...LON 3508 8474 3510 8474 3516 8470 3522 8470
3524 8472 3527 8467 3526 8452 3528 8448
3522 8436 3522 8433 3521 8432 3499 8432
3499 8477
TIME...MOT...LOC 2040Z 285DEG 24KT 3517 8446
$$
17934
WWUS54 KMRX 182056
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
456 PM EDT SAT JUN 18 2011
TNC139-182106-
/O.EXP.KMRX.TO.W.0097.000000T0000Z-110618T2100Z/
POLK TN-
456 PM EDT SAT JUN 18 2011
...THE TORNADO WARNING FOR POLK COUNTY WILL EXPIRE AT 500 PM EDT...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LEVELS. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
LAT...LON 3508 8474 3510 8474 3516 8470 3522 8470
3524 8472 3527 8467 3526 8452 3528 8448
3522 8436 3522 8433 3521 8432 3499 8432
3499 8477
TIME...MOT...LOC 2056Z 285DEG 24KT 3514 8433
$$
17The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 11:52 AM EDT | Severe Thunderstorm Warning | MRX | Morgan | 38 min |
| Jun 18, 3:18 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Meigs, Rhea, Sequatchie | 57 min |
| Jun 18, 3:23 PM EDT | Severe Thunderstorm Warning | MRX | Marion | 67 min |
| Jun 18, 3:50 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, McMinn, Meigs, Monroe, Polk | 55 min |
| Jun 18, 3:59 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton, Polk, Sequatchie | 61 min |
Nearby
Tornado Warnings in Tennessee, 2011Every tornado warning in 2011Tornadoes in 2011
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.