Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 68, NWS Morristown, TN

April 27, 2011Meigs County, Rhea County, Roane County, Tennessee

NWS Morristown, TN issued this tornado warning at Apr 27, 2011, 9:40 PM EDT for Meigs County, Rhea County, Roane County, Tennessee. It was in force for 50 min. 2 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, 9:40 PM EDT (01:40 UTC)
Expired: Apr 27, 2011, 10:30 PM EDT
In force: 50 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon

Counties Meigs County, TN, Rhea County, TN, Roane County, TN

The radar

The Knoxville radar (KMRX), 119 km from the middle of the area, began a volume at 01:43 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, 9:40 PM EDT	TORNADO	Spring City, TN	EF1. PATH LENGTH OF 1.5 MILES. PATH WIDTH OF 75 YARDS. MAX WIND OF 90 MPH.
Apr 27, 10:08 PM EDT	TSTM WND DMG	Spring City, TN	NUMEROUS TREES DOWN ON ROAD AND DAMAGE TO A HOME.

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, 4:36 PM EDT	Tornado Watch PDS	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.7 hours before the alert went out and 184 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: 308 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 669 m above ground
0-6 km bulk shear: 104 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

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

635 
WFUS54 KMRX 280140
TORMRX
TNC121-143-145-280230-
/O.NEW.KMRX.TO.W.0068.110428T0140Z-110428T0230Z/

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

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  MEIGS COUNTY IN EAST TENNESSEE...
  RHEA COUNTY IN EAST TENNESSEE...
  ROANE COUNTY IN EAST TENNESSEE...

* UNTIL 1030 PM EDT

* AT 834 PM CDT/934 PM EDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A
  TORNADO ALONG A LINE EXTENDING FROM 6 MILES WEST OF SPRING CITY TO
  8 MILES SOUTHWEST OF SPRING CITY TO DAYTON. DOPPLER RADAR SHOWED   
THIS TORNADO MOVING EAST TO NORTHEAST AT 50 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  DECATUR...ROCKWOOD...KINGSTON...SPRING CITY...OLIVER SPRINGS...
  EVENSVILLE...GRANDVIEW...OLD WASHINGTON...EAGLE FURNACE...
  PEAKLAND...TEN MILE...FAIRVIEW...HARRIMAN...PAINT ROCK...DEARMOND
  AND BRADBURY.

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 IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY 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 100 AM EDT THURSDAY MORNING 
FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE. 

&&

LAT...LON 3549 8514 3578 8490 3583 8477 3593 8465
      3599 8444 3604 8434 3590 8427 3588 8428
      3588 8434 3577 8439 3577 8442 3575 8443
      3571 8452 3566 8455 3565 8462 3546 8479
      3543 8511
TIME...MOT...LOC 0139Z 250DEG 42KT 3574 8490 3563 8490
          3553 8500

$$

TG

2 follow-up statements

093 
WWUS54 KMRX 280204
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1004 PM EDT WED APR 27 2011

TNC121-143-145-280230-
/O.CON.KMRX.TO.W.0068.000000T0000Z-110428T0230Z/
RHEA TN-ROANE TN-MEIGS TN-
1004 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR MEIGS...
ROANE AND RHEA COUNTIES...

AT 1001 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED NEAR PAINT 
ROCK...OR 10 MILES SOUTHWEST OF KINGSTON...MOVING EAST AT 55 MPH.

THE TORNADO WILL BE NEAR...
  KINGSTON AROUND 1010 PM EDT.

OTHER LOCATIONS AFFECTED BY THIS SEVERE THUNDERSTORM INCLUDE
BRADBURY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL OR LARGER AND DESTRUCTIVE STRAIGHT LINE WINDS.

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.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 100 AM EDT THURSDAY MORNING 
FOR SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE.

&&

LAT...LON 3549 8514 3578 8490 3583 8477 3593 8465
      3599 8444 3604 8434 3590 8427 3588 8428
      3588 8434 3577 8439 3577 8442 3575 8443
      3571 8452 3566 8455 3565 8462 3546 8479
      3543 8511
TIME...MOT...LOC 0204Z 252DEG 46KT 3575 8454

$$

TD

844 
WWUS54 KMRX 280221
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1021 PM EDT WED APR 27 2011

TNC121-143-145-280230-
/O.CON.KMRX.TO.W.0068.000000T0000Z-110428T0230Z/
RHEA TN-ROANE TN-MEIGS TN-
1021 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR MEIGS...
ROANE AND RHEA COUNTIES...

AT 1019 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED NEAR 
FAIRVIEW...OR 6 MILES SOUTH OF KINGSTON...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF MEIGS...
  RHEA AND ROANE COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...
  BRADBURY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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 100 AM EDT THURSDAY MORNING
FOR SOUTHWEST NORTH CAROLINA AND EASTERN TENNESSEE.

&&

LAT...LON 3549 8514 3578 8490 3583 8477 3593 8465
      3599 8444 3604 8434 3590 8427 3588 8428
      3588 8434 3577 8439 3577 8442 3575 8443
      3571 8452 3566 8455 3565 8462 3546 8479
      3543 8511
TIME...MOT...LOC 0221Z 232DEG 36KT 3579 8451

$$

TD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 8:07 PM EDT	Tornado Warning	MRX	Anderson, Jefferson, Knox, Loudon, McMinn, Meigs and 3 more	53 min
Apr 27, 8:10 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Claiborne, Morgan, Roane, Scott, Union	65 min
Apr 27, 8:10 PM EDT	Tornado Warning	MRX	Bradley, Hamilton	65 min
Apr 27, 8:26 PM EDT	Flash Flood Warning	MRX	Anderson, Knox, Loudon, Meigs, Rhea, Roane	3 hr
Apr 27, 8:29 PM EDT	Tornado Warning	MRX	Cocke, Grainger, Greene, Hamblen, Hawkins, Jefferson and 2 more	61 min
Apr 27, 8:29 PM EDT	Tornado Warning	MRX	Marion	61 min
Apr 27, 8:42 PM EDT	Tornado Warning	MRX	McMinn, Polk	47 min
Apr 27, 8:48 PM EDT	Tornado Warning	MRX	Blount, Knox	27 min
Apr 27, 8:53 PM EDT	Tornado Warning	MRX	Bradley, McMinn	34 min
Apr 27, 8:54 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan, Washington	66 min
Apr 27, 9:00 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne, Grainger, Hancock, Union	45 min
Apr 27, 9:08 PM EDT	Tornado Warning	MRX	Bledsoe, Hamilton, Rhea, Sequatchie	52 min
Apr 27, 9:15 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Morgan, Scott	45 min
Apr 27, 9:17 PM EDT	Tornado Warning	MRX	Blount, Loudon, McMinn, Monroe	43 min
Apr 27, 9:18 PM EDT	Tornado Warning	MRX	Hawkins, Sullivan, Washington	42 min
Apr 27, 9:26 PM EDT	Tornado Warning	MRX	Cocke, Greene, Hamblen, Hawkins, Jefferson, Sevier and 2 more	64 min
Apr 27, 9:37 PM EDT	Severe Thunderstorm Warning	MRX	Hancock, Hawkins	53 min
Apr 27, 9:50 PM EDT	Tornado Warning	MRX	Johnson, Sullivan	55 min
Apr 27, 9:53 PM EDT	Tornado Warning	MRX	Bradley, Hamilton, McMinn, Rhea	25 min
Apr 27, 9:58 PM EDT	Tornado Warning	MRX	Blount, Cocke, Jefferson, Sevier	62 min
Apr 27, 10:03 PM EDT	Areal Flood Warning	MRX	Anderson, Bledsoe, Blount, Bradley, Campbell, Hamilton and 14 more	8 hr
Apr 27, 10:05 PM EDT	Tornado Warning	MRX	Anderson, Campbell, Claiborne, Loudon, Morgan, Scott and 1 more	40 min
Apr 27, 10:14 PM EDT	Tornado Warning	MRX	Blount, Bradley, Loudon, McMinn, Meigs, Monroe and 2 more	46 min
Apr 27, 10:24 PM EDT	Tornado Warning	MRX	Knox	51 min
Apr 27, 10:41 PM EDT	Tornado Warning	MRX	Carter, Johnson, Sullivan	64 min
Apr 27, 10:46 PM EDT	Tornado Warning	MRX	Claiborne, Grainger, Hamblen, Hancock, Hawkins, Union	59 min
Apr 27, 10:49 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Monroe, Sevier	26 min
Apr 27, 10:50 PM EDT	Tornado Warning	MRX	Greene, Unicoi, Washington	40 min
Apr 27, 10:52 PM EDT	Tornado Warning	MRX	Blount, Loudon, McMinn, Monroe, Polk	23 min
Apr 27, 10:57 PM EDT	Tornado Warning	MRX	Blount, Cocke, Jefferson, Sevier	63 min
Apr 27, 11:10 PM EDT	Tornado Warning	MRX	Carter, Johnson	65 min
Apr 27, 11:13 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Monroe	47 min
Apr 27, 11:21 PM EDT	Tornado Warning	MRX	Blount, Jefferson, Knox, Sevier	24 min
Apr 27, 11:27 PM EDT	Tornado Warning	MRX	Cocke, Greene, Jefferson, Sevier	63 min
Apr 28, 12:19 AM EDT	Severe Thunderstorm Warning	MRX	Carter, Greene, Johnson, Sullivan, Unicoi, Washington	56 min
Apr 28, 12:26 AM EDT	Severe Thunderstorm Warning	MRX	Greene	49 min
Apr 28, 12:40 AM EDT	Tornado Warning	MRX	Carter, Greene, Unicoi, Washington	31 min
Apr 28, 12:51 AM EDT	Tornado Warning	MRX	Johnson, Sullivan	39 min
Apr 28, 12:59 AM EDT	River Flood Warning	MRX	Bledsoe, Marion, Sequatchie	51 hr
Apr 28, 1:29 AM EDT	Areal Flood Advisory	MRX	Carter, Cocke, Greene, Hamblen, Hancock, Hawkins and 4 more	3 hr

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.