Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 66, NWS Memphis, TN

October 17, 20124 counties in Mississippi

NWS Memphis, TN issued this tornado warning at Oct 17, 2012, 8:10 PM CDT for 4 counties in Mississippi. It was in force for 35 min. 1 report 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
Oct 17, 2012, 8:10 PM CDT (01:10 UTC)
Expired
Oct 17, 2012, 8:45 PM CDT
In force
35 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties DeSoto County, MS, Panola County, MS, Tate County, MS, Tunica County, MS

The radar

The Memphis radar (KNQA), 80 km from the middle of the area, began a volume at 01:13 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

TimeReportWhereRemark
Oct 17, 8:50 PM CDTTSTM WND DMGColdwater, MSCAR TURNED AROUND ON HIGHWAY 51 NEAR ARKABUTLA ROAD. TREES DOWN ON MULTIPLE HOUSES.

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.

IssuedProductOfficeLasted
Oct 17, 5:21 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.2 hours before the alert went out and 27 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 00:00Z on 2012-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 947 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 00:00Z on 2012-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
947 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

350 
WFUS54 KMEG 180110
TORMEG
MSC033-107-137-143-180145-
/O.NEW.KMEG.TO.W.0066.121018T0110Z-121018T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
810 PM CDT WED OCT 17 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL DESOTO COUNTY IN NORTHWEST MISSISSIPPI...
  NORTHWESTERN PANOLA COUNTY IN NORTHWEST MISSISSIPPI...
  WESTERN TATE COUNTY IN NORTHWEST MISSISSIPPI...
  CENTRAL TUNICA COUNTY IN NORTHWEST MISSISSIPPI...

* UNTIL 845 PM CDT

* AT 810 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR DUBBS...OR 13 MILES
  EAST OF ST FRANCIS NATIONAL PARK...MOVING EAST AT 40 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HERNANDO
  AND SENATOBIA.

 THIS WARNING ALSO INCLUDES AREAS NEAR ARKABUTLA LAKE...HORN LAKE AND
  HORSESHOE 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 3485 8996 3454 8995 3451 9026 3451 9044
      3475 9042
TIME...MOT...LOC 0110Z 263DEG 34KT 3459 9037

$$
1 follow-up statement
272 
WWUS54 KMEG 180120
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
820 PM CDT WED OCT 17 2012

MSC107-180130-
/O.CAN.KMEG.TO.W.0066.000000T0000Z-121018T0145Z/
PANOLA MS-
820 PM CDT WED OCT 17 2012

...THE TORNADO WARNING FOR NORTHWESTERN PANOLA COUNTY IS CANCELLED...

AT 820 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 3456 8995 3455 9024 3455 9037 3476 9037
      3485 8996
TIME...MOT...LOC 0120Z 263DEG 34KT 3460 9026

$$

MSC033-137-143-180145-
/O.CON.KMEG.TO.W.0066.000000T0000Z-121018T0145Z/
TUNICA MS-TATE MS-DESOTO MS-
820 PM CDT WED OCT 17 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR SOUTH
CENTRAL DESOTO...WESTERN TATE AND EAST CENTRAL TUNICA COUNTIES...

AT 820 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR LITTLE TEXAS...OR
17 MILES WEST OF SENATOBIA...MOVING EAST AT 40 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HERNANDO...
HOLLYWOOD...PRICHARD...SENATOBIA...ROBINSON GIN...LOVE...LOST LAKE...
DOOLEY...SARAH AND SAVAGE.

 THIS WARNING ALSO INCLUDES AREAS NEAR HORN LAKE AND HORSESHOE 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 3456 8995 3455 9024 3455 9037 3476 9037
      3485 8996
TIME...MOT...LOC 0120Z 263DEG 34KT 3460 9026

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 7:20 PM CDTSevere Thunderstorm WarningMEGTunica40 min
Oct 17, 7:43 PM CDTTornado WarningMEGTunica32 min
Oct 17, 8:23 PM CDTTornado WarningMEGTunica37 min
Oct 17, 8:37 PM CDTTornado WarningMEGDeSoto, Tate38 min
Oct 17, 8:42 PM CDTSevere Thunderstorm WarningMEGBenton, DeSoto, Marshall38 min
Oct 17, 8:49 PM CDTTornado WarningMEGDeSoto, Tate, Tunica26 min
Oct 17, 9:01 PM CDTTornado WarningMEGDeSoto, Marshall, Tate29 min
Oct 17, 9:05 PM CDTSevere Thunderstorm WarningMEGCoahoma, Quitman, Tallahatchie40 min
Oct 17, 9:07 PM CDTTornado WarningMEGDeSoto, Tate, Tunica23 min
Oct 17, 9:09 PM CDTTornado WarningMEGCoahoma, Tallahatchie51 min
Oct 17, 9:18 PM CDTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tate, Tunica42 min
Oct 17, 9:23 PM CDTTornado WarningMEGBenton, Marshall37 min
Oct 17, 9:26 PM CDTTornado WarningMEGLafayette, Marshall, Panola, Tate49 min
Oct 17, 9:28 PM CDTSevere Thunderstorm WarningMEGDeSoto, Tate, Tunica32 min
Oct 17, 9:33 PM CDTSevere Thunderstorm WarningMEGPanola, Quitman, Tallahatchie42 min
Oct 17, 9:36 PM CDTSevere Thunderstorm WarningMEGLafayette, Marshall, Panola39 min
Oct 17, 9:46 PM CDTTornado WarningMEGBenton, Marshall, Tate29 min
Oct 17, 9:49 PM CDTTornado WarningMEGTallahatchie, Yalobusha26 min
Oct 17, 9:53 PM CDTSevere Thunderstorm WarningMEGCoahoma, Tunica52 min
Oct 17, 9:55 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Marshall, Tippah50 min
Oct 17, 10:05 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Lafayette, Lee, Marshall, Prentiss and 2 more40 min
Oct 17, 10:11 PM CDTSevere Thunderstorm WarningMEGCalhoun, Lafayette, Panola, Yalobusha49 min
Oct 17, 10:17 PM CDTSpecial Weather StatementMEGDeSoto, Marshall28 min
Oct 17, 10:26 PM CDTSevere Thunderstorm WarningMEGAlcorn, Tippah, Tishomingo64 min
Oct 17, 10:35 PM CDTSevere Thunderstorm WarningMEGAlcorn, Itawamba, Lee, Pontotoc, Prentiss, Tippah and 2 more55 min
Oct 17, 10:42 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lafayette, Lee, Pontotoc, Yalobusha48 min
Oct 17, 10:44 PM CDTSpecial Weather StatementMEGCoahoma, Panola, Quitman, Tate, Tunica31 min
Oct 17, 10:46 PM CDTSpecial Weather StatementMEGBenton, Marshall44 min
Oct 17, 10:48 PM CDTSpecial Weather StatementMEGTallahatchie, Yalobusha42 min
Oct 17, 11:08 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe52 min

Nearby

Tornado Warnings in Mississippi, 2012Every tornado warning in 2012Tornadoes in 2012

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.