Alert archive / Tennessee / Tornado Warnings in 2011
Tornado Warning 3, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Feb 28, 2011, 1:17 PM EST for 7 counties in Tennessee. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Feb 28, 2011, 1:17 PM EST (18:17 UTC)
- Expired
- Feb 28, 2011, 1:42 PM EST
- In force
- 25 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hawkins County, TN, Jefferson County, TN, Sevier County, TN
The radar
The Knoxville radar (KMRX), 26 km from the middle of the area, began a volume at 18:20 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.
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 28, 6:59 AM EST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 290 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 425 m²/s²
- 0-3 km storm-relative helicity
- 499 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
585 WFUS54 KMRX 281817 TORMRX TNC029-057-059-063-073-089-155-281900- /O.NEW.KMRX.TO.W.0003.110228T1817Z-110228T1900Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MORRISTOWN TN 117 PM EST MON FEB 28 2011 THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A * TORNADO WARNING FOR... COCKE COUNTY IN EAST TENNESSEE... GRAINGER COUNTY IN EAST TENNESSEE... GREENE COUNTY IN EAST TENNESSEE... HAMBLEN COUNTY IN EAST TENNESSEE... HAWKINS COUNTY IN EAST TENNESSEE... JEFFERSON COUNTY IN EAST TENNESSEE... SEVIER COUNTY IN EAST TENNESSEE... * UNTIL 200 PM EST * AT 112 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NEW MARKET...OR NEAR JEFFERSON CITY. DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 65 MPH. * LOCATIONS IN THE WARNING INCLUDE... MORRISTOWN...NEWPORT...ROGERSVILLE...GREENEVILLE...WHITE PINE... BEAN STATION...RUSSELLVILLE...PARROTTSVILLE...TUSCULUM...CHESTNUT HILL...ALPHA...BYBEE...LOWLAND...MOORESBURG...MOHAWK...BULLS GAP... CANEY BRANCH...ST. CLAIR...CEDAR CREEK AND MOSHEIM. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING ONE INCH SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE. 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 200 PM EST MONDAY AFTERNOON FOR CENTRAL TENNESSEE AND SOUTHWEST VIRGINIA. && LAT...LON 3647 8290 3609 8264 3582 8355 3630 8364 TIME...MOT...LOC 1816Z 253DEG 55KT 3608 8343 $$ 17
2 follow-up statements
953
WWUS54 KMRX 281831
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
131 PM EST MON FEB 28 2011
TNC057-155-281840-
/O.CAN.KMRX.TO.W.0003.000000T0000Z-110228T1900Z/
GRAINGER TN-SEVIER TN-
131 PM EST MON FEB 28 2011
...THE TORNADO WARNING FOR SEVIER AND GRAINGER COUNTIES IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST MONDAY EVENING FOR
SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE.
LAT...LON 3595 8328 3598 8339 3612 8342 3623 8341
3627 8326 3635 8310 3647 8290 3609 8264
TIME...MOT...LOC 1830Z 254DEG 62KT 3610 8313
$$
TNC029-059-063-073-089-281900-
/O.CON.KMRX.TO.W.0003.000000T0000Z-110228T1900Z/
HAMBLEN TN-HAWKINS TN-JEFFERSON TN-COCKE TN-GREENE TN-
131 PM EST MON FEB 28 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM EST FOR GREENE...
COCKE...JEFFERSON...HAWKINS AND HAMBLEN COUNTIES...
AT 129 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR BYBEE...OR 10
MILES NORTH OF NEWPORT...MOVING EAST AT 60 MPH.
LOCATIONS IN THE WARNING INCLUDE...
ROGERSVILLE...GREENEVILLE...TUSCULUM...BULLS GAP...MOHAWK...CANEY
BRANCH...ST. CLAIR...MOSHEIM...MCCLOUD...ROMEO...KEPLER...CAMP
CREEK AND BAILEYTON.
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.
&&
LAT...LON 3595 8328 3598 8339 3612 8342 3623 8341
3627 8326 3635 8310 3647 8290 3609 8264
TIME...MOT...LOC 1830Z 254DEG 62KT 3610 8313
$$
GM688
WWUS54 KMRX 281842
SVSMRX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
142 PM EST MON FEB 28 2011
TNC029-059-063-073-089-281851-
/O.CAN.KMRX.TO.W.0003.000000T0000Z-110228T1900Z/
HAMBLEN TN-HAWKINS TN-JEFFERSON TN-COCKE TN-GREENE TN-
142 PM EST MON FEB 28 2011
...THE TORNADO WARNING FOR GREENE...COCKE...JEFFERSON...HAWKINS AND
HAMBLEN COUNTIES IS CANCELLED...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LEVELS. THEREFORE...THE WARNING HAS BEEN CANCELLED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST MONDAY EVENING FOR
SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE. BE PREPARED FOR OTHER
WARNINGS.
LAT...LON 3595 8328 3598 8339 3612 8342 3623 8341
3627 8326 3635 8310 3647 8290 3609 8264
TIME...MOT...LOC 1841Z 254DEG 62KT 3615 8290
$$
GMThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 8:21 PM EST | Dense Fog Advisory | MRX | Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 17 more | 8 hr |
| Feb 28, 8:38 AM EST | Severe Thunderstorm Warning | MRX | Campbell, Scott | 52 min |
| Feb 28, 9:28 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Claiborne, Hancock, Scott, Union | 47 min |
| Feb 28, 10:00 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Scott | 30 min |
| Feb 28, 10:15 AM EST | River Flood Warning | MRX | Claiborne, Grainger, Hancock | 47 hr |
| Feb 28, 10:15 AM EST | River Flood Warning | MRX | Sevier | 17 hr |
| Feb 28, 10:15 AM EST | River Flood Warning | MRX | Claiborne, Hancock | 27 hr |
| Feb 28, 10:26 AM EST | Areal Flood Advisory | MRX | Morgan, Scott | 3 hr |
| Feb 28, 10:40 AM EST | Severe Thunderstorm Warning | MRX | Campbell, Claiborne, Hancock, Union | 50 min |
| Feb 28, 10:56 AM EST | Areal Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 6 hr |
| Feb 28, 11:15 AM EST | Severe Thunderstorm Warning | MRX | Bledsoe, Rhea | 45 min |
| Feb 28, 12:23 PM EST | Severe Thunderstorm Warning | MRX | Anderson, Knox | 37 min |
| Feb 28, 12:48 PM EST | Tornado Warning | MRX | Anderson, Blount, Cocke, Jefferson, Knox, Sevier | 42 min |
| Feb 28, 1:02 PM EST | Areal Flood Warning | MRX | Blount, Cocke, Grainger, Greene, Hamblen, Hancock and 8 more | 12 hr |
| Feb 28, 1:43 PM EST | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Marion, Meigs, Rhea, Sequatchie | 32 min |
| Feb 28, 1:48 PM EST | Tornado Warning | MRX | Hamilton, Marion, Sequatchie | 42 min |
| Feb 28, 2:22 PM EST | Tornado Warning | MRX | Bradley, Hamilton | 38 min |
| Feb 28, 2:33 PM EST | Severe Thunderstorm Warning | MRX | Bradley, Hamilton, McMinn, Meigs, Monroe, Rhea | 42 min |
| Feb 28, 2:47 PM EST | Tornado Warning | MRX | Bradley, Monroe, Polk | 43 min |
| Feb 28, 3:08 PM EST | Severe Thunderstorm Warning | MRX | Blount, Monroe | 37 min |
| Feb 28, 4:42 PM EST | Areal Flood Warning | MRX | Anderson, Campbell, Claiborne, Grainger, Hancock, Knox and 4 more | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.