Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 31, NWS Morristown, TN

April 27, 2011Bradley County, Polk County, Tennessee

NWS Morristown, TN issued this tornado warning at Apr 27, 2011, 2:56 PM EDT for Bradley County, Polk County, Tennessee. It was in force for 64 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: Apr 27, 2011, 2:56 PM EDT (18:56 UTC)
Expired: Apr 27, 2011, 4:00 PM EDT
In force: 64 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon

Counties Bradley County, TN, Polk County, TN

The radar

The Northeast Alabama radar (KHTX), 125 km from the middle of the area, began a volume at 18:59 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
Apr 27, 3:20 PM EDT	HAIL 1.75	Cleveland, TN
Apr 27, 3:36 PM EDT	TSTM WND DMG	Cleveland, TN	TREES DOWN ON HOMES NEAR INTERSECTION OF GREENWOOD AND OAKCREST.
Apr 27, 3:36 PM EDT	TORNADO	1 W Cleveland, TN	EF1. MAX WINDS 90 MPH. 2 MILE PATH LENGTH. MAX WIDTH OF 150 YARDS.

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
Apr 27, 11:27 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.9 hours before the alert went out and 196 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 714 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: -84 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

014 
WFUS54 KMRX 271856
TORMRX
TNC011-139-272000-
/O.NEW.KMRX.TO.W.0031.110427T1856Z-110427T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
256 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  BRADLEY COUNTY IN EAST TENNESSEE...
  POLK COUNTY IN EAST TENNESSEE...

* UNTIL 400 PM EDT

* AT 250 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  CHATTANOOGA. DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 55   
  MPH. THIS STORM HAS A HISTORY OF ALSO PRODUCING QUARTER TO GOLF    
  BALL SIZED HAIL. 

* LOCATIONS IN THE WARNING INCLUDE...
  CLEVELAND...BENTON...DUCKTOWN...CHARLESTON...MCDONALD...FLINT
  SPRINGS...HOPEWELL...WATERVILLE...GAP SPRINGS...TASSO...
  CONASAUGA...PARKSVILLE...BIG FROG MOUNTAIN...RELIANCE...
  ARCHVILLE...COPPERHILL AND TURTLETOWN.

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 500 PM EDT WEDNESDAY 
AFTERNOON FOR SOUTHWEST NORTH CAROLINA AND MUCH OF SOUTHEAST 
TENNESSEE.

&&

LAT...LON 3502 8497 3504 8500 3515 8503 3529 8495
      3533 8488 3536 8488 3529 8475 3529 8473
      3529 8472 3527 8475 3524 8471 3527 8467
      3526 8452 3528 8448 3521 8429 3499 8432
      3498 8497
TIME...MOT...LOC 1855Z 257DEG 48KT 3508 8517

$$

TG

2 follow-up statements

502 
WWUS54 KMRX 271920
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
320 PM EDT WED APR 27 2011

TNC011-139-272000-
/O.CON.KMRX.TO.W.0031.000000T0000Z-110427T2000Z/
BRADLEY TN-POLK TN-
320 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR POLK AND
BRADLEY COUNTIES...

AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR TASSO...OR NEAR
CLEVELAND...MOVING EAST AT 55 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  BENTON...DUCKTOWN...CHARLESTON...PARKSVILLE...BIG FROG MOUNTAIN...
  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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT WEDNESDAY
AFTERNOON FOR SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE.

&&

LAT...LON 3502 8497 3504 8500 3515 8503 3529 8495
      3533 8488 3536 8488 3529 8475 3529 8473
      3529 8472 3527 8475 3524 8471 3527 8467
      3526 8452 3528 8448 3521 8429 3499 8432
      3498 8497
TIME...MOT...LOC 1920Z 254DEG 48KT 3519 8478

$$

MJB

259 
WWUS54 KMRX 271935
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
335 PM EDT WED APR 27 2011

TNC011-139-272000-
/O.CON.KMRX.TO.W.0031.000000T0000Z-110427T2000Z/
BRADLEY TN-POLK TN-
335 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR POLK AND
BRADLEY COUNTIES...

AT 332 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR TASSO...OR 6 MILES
NORTHEAST OF CLEVELAND...MOVING EAST AT 55 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  BENTON...CHARLESTON...RELIANCE AND ARCHVILLE.

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 500 PM EDT WEDNESDAY
AFTERNOON FOR SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE.

&&

LAT...LON 3518 8501 3529 8495 3533 8488 3536 8488
      3529 8474 3528 8473 3527 8475 3524 8471
      3527 8467 3526 8452 3528 8448 3521 8433
      3521 8429 3513 8440 3512 8484
TIME...MOT...LOC 1934Z 254DEG 48KT 3525 8478

$$

MJB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:38 AM EDT	Severe Thunderstorm Warning	MRX	Marion, Sequatchie	52 min
Apr 27, 8:16 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe	44 min
Apr 27, 8:25 AM EDT	Severe Thunderstorm Warning	MRX	Hamilton, Marion, Sequatchie	65 min
Apr 27, 8:37 AM EDT	Tornado Warning	MRX	Bradley, Hamilton, Marion	53 min
Apr 27, 8:49 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Bledsoe, Campbell, Morgan, Roane, Scott	56 min
Apr 27, 9:14 AM EDT	Tornado Warning	MRX	Hamilton	46 min
Apr 27, 9:15 AM EDT	Tornado Warning	MRX	Scott	30 min
Apr 27, 9:20 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, Polk	40 min
Apr 27, 9:33 AM EDT	Tornado Warning	MRX	Meigs, Rhea	42 min
Apr 27, 9:39 AM EDT	Severe Thunderstorm Warning	MRX	McMinn, Monroe	66 min
Apr 27, 9:51 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Blount, Campbell, Grainger, Jefferson, Knox and 6 more	54 min
Apr 27, 9:56 AM EDT	Tornado Warning	MRX	McMinn	49 min
Apr 27, 10:10 AM EDT	Tornado Warning	MRX	Loudon, Meigs, Roane	50 min
Apr 27, 10:23 AM EDT	Tornado Warning	MRX	McMinn, Monroe	22 min
Apr 27, 10:47 AM EDT	Tornado Warning	MRX	Anderson, Knox	18 min
Apr 27, 1:25 PM EDT	Tornado Warning	MRX	Marion	65 min
Apr 27, 2:01 PM EDT	Severe Thunderstorm Warning	MRX	Sequatchie	44 min
Apr 27, 2:10 PM EDT	Tornado Warning	MRX	Sequatchie	50 min
Apr 27, 2:23 PM EDT	Tornado Warning	MRX	Bledsoe, Rhea	52 min
Apr 27, 2:27 PM EDT	Tornado Warning	MRX	Hamilton, Marion	48 min
Apr 27, 3:04 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Loudon, McMinn, Meigs, Monroe, Morgan and 2 more	56 min
Apr 27, 3:07 PM EDT	High Wind Warning	MRX	Blount, Carter, Cocke, Greene, Johnson, Monroe and 2 more	11 hr
Apr 27, 3:11 PM EDT	Tornado Warning	MRX	McMinn, Meigs	49 min
Apr 27, 3:24 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton	36 min
Apr 27, 3:38 PM EDT	Tornado Warning	MRX	Anderson, Blount, Knox, Loudon, Morgan, Roane	52 min
Apr 27, 3:43 PM EDT	Tornado Warning	MRX	Loudon, McMinn, Monroe	47 min
Apr 27, 3:53 PM EDT	Areal Flood Advisory	MRX	Bradley, Hamilton	3 hr
Apr 27, 4:00 PM EDT	Tornado Warning	MRX	Bradley, Hamilton, McMinn, Meigs, Polk	60 min
Apr 27, 4:09 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Monroe, Sevier	51 min
Apr 27, 4:25 PM EDT	Tornado Warning	MRX	McMinn, Monroe, Polk	65 min
Apr 27, 4:39 PM EDT	Areal Flood Advisory	MRX	Blount, Bradley, Knox, Loudon, McMinn, Meigs and 3 more	3 hr
Apr 27, 4:51 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Jefferson, Sevier	54 min
Apr 27, 4:56 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Sevier	49 min
Apr 27, 5:16 PM EDT	Tornado Warning	MRX	Hamilton, Marion, Sequatchie	59 min
Apr 27, 5:18 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Morgan, Scott	42 min
Apr 27, 5:29 PM EDT	Tornado Warning	MRX	Blount, Loudon, Monroe	16 min
Apr 27, 5:38 PM EDT	Tornado Warning	MRX	Campbell, Scott	37 min
Apr 27, 5:45 PM EDT	Tornado Warning	MRX	Anderson, Blount, Knox, Loudon, Sevier	32 min
Apr 27, 5:48 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more	57 min
Apr 27, 5:59 PM EDT	Tornado Warning	MRX	Campbell, Claiborne, Morgan, Scott	61 min
Apr 27, 6:01 PM EDT	Tornado Warning	MRX	Bradley, Hamilton	59 min
Apr 27, 6:14 PM EDT	Tornado Warning	MRX	Marion	61 min
Apr 27, 6:39 PM EDT	Tornado Warning	MRX	Bradley, McMinn, Monroe, Polk	66 min
Apr 27, 6:40 PM EDT	Severe Thunderstorm Warning	MRX	Greene, Hawkins, Sullivan, Washington	50 min
Apr 27, 6:43 PM EDT	Tornado Warning	MRX	Hamilton, Marion, Sequatchie	62 min
Apr 27, 6:52 PM EDT	Tornado Warning	MRX	Bledsoe, Rhea	53 min
Apr 27, 6:57 PM EDT	Flash Flood Warning	MRX	Bradley, Hamilton, McMinn, Monroe	3 hr
Apr 27, 7:01 PM EDT	Tornado Warning	MRX	Campbell, Claiborne, Hancock	44 min
Apr 27, 7:01 PM EDT	Tornado Warning	MRX	Bradley, Hamilton, Meigs	59 min
Apr 27, 7:06 PM EDT	Tornado Warning	MRX	Blount, Knox, Monroe, Polk	54 min
Apr 27, 7:13 PM EDT	Flash Flood Warning	MRX	Campbell, Morgan, Scott	3 hr
Apr 27, 7:21 PM EDT	Tornado Warning	MRX	Blount, Bradley, Knox, Loudon, McMinn, Meigs and 3 more	39 min
Apr 27, 7:43 PM EDT	Tornado Warning	MRX	Bledsoe, Hamilton, Rhea, Sequatchie	62 min
Apr 27, 7:49 PM EDT	Tornado Warning	MRX	Blount, Cocke, Hamblen, Jefferson, Knox, Sevier	41 min
Apr 27, 7:53 PM EDT	Flash Flood Warning	MRX	Bledsoe, Marion, Sequatchie	3 hr
Apr 27, 7:54 PM EDT	Tornado Warning	MRX	Anderson, Blount, Claiborne, Grainger, Hamblen, Jefferson and 6 more	51 min

Nearby

Tornado Warnings in Tennessee, 2011 Every tornado warning in 2011 Tornadoes 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.