Alert archive / Tennessee / Tornado Warnings in 2011

Tornado Warning 50, NWS Memphis, TN

April 25, 20115 counties in Tennessee

NWS Memphis, TN issued this tornado warning at Apr 25, 2011, 12:59 PM CDT for 5 counties in Tennessee. It was in force for 46 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
Apr 25, 2011, 12:59 PM CDT (17:59 UTC)
Expired
Apr 25, 2011, 1:45 PM CDT
In force
46 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Fayette County, TN, Hardeman County, TN, Haywood County, TN, Madison County, TN, Shelby County, TN

The radar

The Memphis radar (KNQA), 52 km from the middle of the area, began a volume at 18:00 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
Apr 25, 9:17 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.0 hours before the alert went out and 83 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 2011-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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 2011-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 square meters per square second.19395878Sfc1 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
11 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

588 
WFUS54 KMEG 251759
TORMEG
TNC047-069-075-113-157-251845-
/O.NEW.KMEG.TO.W.0050.110425T1759Z-110425T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1259 PM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN FAYETTE COUNTY IN SOUTHWEST TENNESSEE...
  NORTHWESTERN HARDEMAN COUNTY IN SOUTHWEST TENNESSEE...
  SOUTHERN HAYWOOD COUNTY IN SOUTHWEST TENNESSEE...
  SOUTHWESTERN MADISON COUNTY IN SOUTHWEST TENNESSEE...
  EAST CENTRAL SHELBY COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 145 PM CDT

* AT 1259 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR EADS...OR 7 MILES
  NORTHEAST OF CORDOVA...MOVING EAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF EAST CENTRAL SHELBY...NORTHERN FAYETTE...NORTHWESTERN
  HARDEMAN...SOUTHERN HAYWOOD AND SOUTHWESTERN MADISON COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.IN ADDITION TO THE TORNADO...THIS STORM WILL PRODUCE QUARTER SIZE 
HAIL 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.

.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 3553 8906 3529 8896 3510 8967 3531 8977
TIME...MOT...LOC 1759Z 249DEG 32KT 3523 8961

$$
1 follow-up statement
659 
WWUS54 KMEG 251819
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
119 PM CDT MON APR 25 2011

TNC157-251829-
/O.CAN.KMEG.TO.W.0050.000000T0000Z-110425T1845Z/
SHELBY TN-
119 PM CDT MON APR 25 2011

...THE TORNADO WARNING FOR EAST CENTRAL SHELBY COUNTY IS CANCELLED...

AT 119 PM CDT...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.

LAT...LON 3529 8896 3511 8964 3526 8963 3526 8964
      3529 8964 3535 8963 3553 8907
TIME...MOT...LOC 1819Z 249DEG 32KT 3529 8941

$$

TNC047-069-075-113-251845-
/O.CON.KMEG.TO.W.0050.000000T0000Z-110425T1845Z/
FAYETTE TN-HAYWOOD TN-MADISON TN-HARDEMAN TN-
119 PM CDT MON APR 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
NORTHWESTERN HARDEMAN...SOUTHWESTERN MADISON...SOUTHERN HAYWOOD AND
NORTHERN FAYETTE COUNTIES...

AT 119 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR GRIFFEN...OR 20 
MILES NORTHEAST OF COLLIERVILLE...MOVING EAST AT 35 MPH. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BRADEN...
GALLAWAY...OAKLAND...BELMONT...LAMBERT...MOORMAN...YUM YUM...TAYLOR
CHAPEL...MILLER...FAYETTE CORNERS...LACONIA...LONGTOWN...HICKORY
WITHE AND GRIFFEN.

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 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 3529 8896 3511 8964 3526 8963 3526 8964
      3529 8964 3535 8963 3553 8907
TIME...MOT...LOC 1819Z 249DEG 32KT 3529 8941

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 10:47 AM CDTSpecial Weather StatementMEGCrockett, Dyer, Gibson, Lauderdale43 min
Apr 25, 11:41 AM CDTSpecial Weather StatementMEGShelby49 min
Apr 25, 12:06 PM CDTSpecial Weather StatementMEGShelby54 min
Apr 25, 12:09 PM CDTSpecial Weather StatementMEGDyer, Haywood, Lake, Lauderdale, Tipton66 min
Apr 25, 12:13 PM CDTSevere Thunderstorm WarningMEGFayette, Shelby47 min
Apr 25, 12:24 PM CDTSevere Thunderstorm WarningMEGFayette, Haywood, Shelby, Tipton51 min
Apr 25, 12:30 PM CDTTornado WarningMEGFayette, Shelby45 min
Apr 25, 12:56 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Shelby49 min
Apr 25, 1:27 PM CDTRiver Flood WarningMEGObion, Weakley3 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGDyer, Gibson, Obion17 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGDyer19 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGMadison10 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGCrockett, Dyer, Lauderdale18 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGShelby5 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGFayette, Shelby4 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGDyer18 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGHardeman8 days
Apr 25, 1:27 PM CDTRiver Flood WarningMEGLauderdale, Tipton45 hr
Apr 25, 1:27 PM CDTRiver Flood WarningMEGFayette, Shelby4 days
Apr 25, 1:34 PM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Crockett, Dyer, Gibson, Hardeman and 3 more41 min
Apr 25, 1:41 PM CDTTornado WarningMEGCarroll, Crockett, Gibson, Haywood, Madison, Weakley49 min
Apr 25, 1:44 PM CDTRiver Flood AdvisoryMEGHardin15 days
Apr 25, 1:44 PM CDTSevere Thunderstorm WarningMEGChester, Fayette, Hardeman, Haywood, McNairy, Madison46 min
Apr 25, 2:11 PM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Decatur, Gibson, Hardeman, Hardin and 5 more49 min
Apr 25, 2:36 PM CDTSevere Thunderstorm WarningMEGCarroll, Henry, Weakley39 min
Apr 25, 2:47 PM CDTTornado WarningMEGCarroll, Henry, Weakley43 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.