Alert archive / Tennessee / Tornado Warnings in 2014

Tornado Warning 6, NWS Memphis, TN

February 20, 2014Lake County, Obion County, Tennessee; Pemiscot County, Missouri

NWS Memphis, TN issued this tornado warning at Feb 20, 2014, 5:01 PM CST for Lake County, Obion County, Tennessee; Pemiscot County, Missouri. It was in force for 44 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 20, 2014, 5:01 PM CST (23:01 UTC)
Expired
Feb 20, 2014, 5:45 PM CST
In force
44 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Pemiscot County, MO, Lake County, TN, Obion County, TN

The radar

The Paducah radar (KPAH), 97 km from the middle of the area, began a volume at 23:03 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.

IssuedProductOfficeLasted
Feb 20, 2:23 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 11.0 hours before the alert went out and 181 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2014-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2014-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 366 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
4 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
366 m²/s²
0-3 km storm-relative helicity
420 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.

338 
WFUS54 KMEG 202301
TORMEG
MOC155-TNC095-131-202345-
/O.NEW.KMEG.TO.W.0006.140220T2301Z-140220T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
501 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN LAKE COUNTY IN NORTHWEST TENNESSEE...
  NORTHWESTERN OBION COUNTY IN NORTHWEST TENNESSEE...
  NORTHEASTERN PEMISCOT COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 545 PM CST

* AT 501 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR STEWART...OR 8 MILES
  SOUTHEAST OF PORTAGEVILLE...MOVING NORTHEAST AT 65 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HAYWARD...
  STEWART AND REELFOOT LAKE STATE PARK.

 THIS WARNING ALSO INCLUDES AREAS NEAR REELFOOT LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER 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 3626 8956 3640 8969 3636 8955 3635 8953
      3638 8952 3642 8955 3646 8953 3650 8953
      3650 8949 3647 8949 3646 8946 3650 8941
      3651 8910
TIME...MOT...LOC 2301Z 233DEG 57KT 3639 8953

$$
2 follow-up statements
065 
WWUS54 KMEG 202319
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
519 PM CST THU FEB 20 2014

MOC155-202330-
/O.CAN.KMEG.TO.W.0006.000000T0000Z-140220T2345Z/
PEMISCOT MO-
519 PM CST THU FEB 20 2014

...THE TORNADO WARNING FOR NORTHEASTERN PEMISCOT COUNTY IS
CANCELLED...

AT 520 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE TORNADO WARNING IS CANCELLED.

.A TORNADO WATCH ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

LAT...LON 3642 8927 3648 8943 3650 8941 3651 8910
TIME...MOT...LOC 2320Z 233DEG 57KT 3655 8927

$$

TNC095-131-202345-
/O.CON.KMEG.TO.W.0006.000000T0000Z-140220T2345Z/
LAKE TN-OBION TN-
519 PM CST THU FEB 20 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR NORTH
CENTRAL OBION AND EXTREME NORTHEASTERN LAKE COUNTIES...

AT 520 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR WALNUT LOG...OR 9
MILES SOUTHWEST OF HICKMAN...MOVING NORTHEAST AT 65 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GRAYS CAMP
AND WALNUT LOG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER 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 ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

&&

LAT...LON 3642 8927 3648 8943 3650 8941 3651 8910
TIME...MOT...LOC 2320Z 233DEG 57KT 3655 8927

$$
269 
WWUS54 KMEG 202327
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
527 PM CST THU FEB 20 2014

TNC095-131-202337-
/O.CAN.KMEG.TO.W.0006.000000T0000Z-140220T2345Z/
LAKE TN-OBION TN-
527 PM CST THU FEB 20 2014

...THE TORNADO WARNING FOR NORTH CENTRAL OBION AND EXTREME
NORTHEASTERN LAKE COUNTIES IS CANCELLED...

AT 527 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE TORNADO WARNING IS CANCELLED.

.A TORNADO WATCH ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

LAT...LON 3642 8927 3648 8943 3650 8941 3651 8910
TIME...MOT...LOC 2327Z 233DEG 57KT 3661 8915

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 4:06 PM CSTSevere Thunderstorm WarningMEGFayette, Shelby39 min
Feb 20, 4:08 PM CSTTornado WarningMEGShelby37 min
Feb 20, 4:12 PM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Henry33 min
Feb 20, 4:19 PM CSTSevere Thunderstorm WarningMEGShelby41 min
Feb 20, 4:31 PM CSTTornado WarningMEGLake, Obion44 min
Feb 20, 4:40 PM CSTSevere Thunderstorm WarningMEGBenton20 min
Feb 20, 4:52 PM CSTSevere Thunderstorm WarningMEGFayette, Hardeman38 min
Feb 20, 5:01 PM CSTTornado WarningMEGFayette29 min
Feb 20, 5:22 PM CSTSevere Thunderstorm WarningMEGChester, Fayette, Hardeman, McNairy, Madison38 min
Feb 20, 3:35 PM CSTSevere Thunderstorm WarningMEGDunklin40 min
Feb 20, 3:57 PM CSTTornado WarningMEGDunklin, Pemiscot48 min

Nearby

Tornado Warnings in Tennessee, 2014Tornado Warnings in Missouri, 2014Every tornado warning in 2014Tornadoes in 2014

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.