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Tennessee Valley Severe Weather Feb.20


jaxjagman

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TORNADO WARNING
MSC009-093-TNC047-202330-
/O.NEW.KMEG.TO.W.0007.140220T2301Z-140220T2330Z/

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...
  NORTHWESTERN BENTON COUNTY IN NORTHEAST MISSISSIPPI...
  NORTHEASTERN MARSHALL COUNTY IN NORTHWEST MISSISSIPPI...
  SOUTHEASTERN FAYETTE COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 530 PM CST

* AT 502 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR RED BANKS...OR 8 MILES
  NORTHWEST OF HOLLY SPRINGS...MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
  OF NORTHEASTERN MARSHALL...NORTHWESTERN BENTON AND SOUTHEASTERN
  FAYETTE COUNTIES.

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mcd0126.gif

MESOSCALE DISCUSSION 0126
   NWS STORM PREDICTION CENTER NORMAN OK
   0522 PM CST THU FEB 20 2014

   AREAS AFFECTED...WRN AND CENTRAL KY/WRN AND MIDDLE TN/NRN MS/FAR
   SERN MO/NERN AR/NWRN AL/SRN IL/SRN AND CENTRAL IND

   CONCERNING...TORNADO WATCH 11...

   VALID 202322Z - 210015Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 11 CONTINUES.

   SUMMARY...TORNADO THREAT CONTINUES ACROSS WW 11...ALONG AND AHEAD OF
   THE COLD FRONT.  A NEW WW IS BEING CONSIDERED TO THE EAST OF WW 11
   AND WW 13 INTO MIDDLE TN...CENTRAL KY...AND SRN-CENTRAL IND.

   DISCUSSION...SATELLITE IMAGERY SHOWED A STRONG MID-UPPER LEVEL
   TROUGH CONTINUING TO ADVANCE EWD ACROSS THE FULL EXTENT OF THE MS
   VALLEY.  DEEP LAYER WIND FIELDS ARE EXPECTED TO UNDERGO FURTHER
   STRENGTHENING FROM AR TO THE TN/OH VALLEYS TO UPPER GREAT LAKES.
   THIS WILL OCCUR AS AN UPSTREAM SHORTWAVE TROUGH...CURRENTLY MOVING
   ESEWD THROUGH SWRN KS TO NWRN OK PER WATER VAPOR IMAGERY...MOVES
   INTO THE BASE OF THE ALREADY STRONG MS VALLEY LONGWAVE TROUGH.  THE
   COLD FRONT ATTENDANT TO THIS PARENT TROUGH EXTENDED FROM A 986 MB
   SURFACE LOW IN ERN IA SWD THROUGH WRN IL...SERN MO...TO CENTRAL AND
   SWRN AR. 

   ALTHOUGH A 20Z SPECIAL SOUNDING AT BNA SHOWED A CAP AT 700
   MB...MIDLEVEL LAPSE RATES WERE STEEP /7-8 C PER KM/ WITH SUFFICIENT
   MOISTURE /PW AROUND 1 INCH/ FOR EVENTUAL STORM DEVELOPMENT.  A BAND
   OF STORMS DOES EXIST EAST OF THE COLD FRONT AND EXTENDED FRO WRN KY
   /OHIO COUNTY/ SWWD INTO WRN TN AND NWRN MS.  ALTHOUGH MOST OF THE
   STORM SIGNATURES HAVE TENDED TO BE LINEAR OR QUASI-LINEAR WITHIN
   THIS BAND...RADAR DATA SHOWED EMBEDDED CIRCULATIONS IN THE LINE
   SEGMENTS.  ADDITIONAL BROKEN AND DISCRETE STORMS WERE LOCATED ALONG
   AND JUST AHEAD OF THE COLD FRONT IN SRN IL AND FAR SERN MO/NERN AR.
   AREA WSR-88D VADS AND STRENGTHENING WINDS/SHEAR SUGGEST TORNADOES
   WILL REMAIN A THREAT INTO THE EVENING...AS THE PARENT TROUGH
   UNDERGOES FURTHER STRENGTHENING.  GIVEN STRONG TO SEVERE STORMS
   LOCATED ON THE ERN PART OF WW 11 /NRN MIDDLE TN AND SWRN KY/ AND
   EXPECTED FAVORABLE STORM ENVIRONMENT SPREADING EWD INTO THE TN/OH
   VALLEYS THIS EVENING...A NEW WW WILL BE CONSIDERED E OF WW 11 AND WW
   13.

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TORNADO WATCH OUTLINE UPDATE FOR WT 16
NWS STORM PREDICTION CENTER NORMAN OK
650 PM CST THU FEB 20 2014

TORNADO WATCH 16 IS IN EFFECT UNTIL 300 AM CST FOR THE
FOLLOWING LOCATIONS

TNC003-015-021-027-031-035-037-041-049-051-055-061-087-099-103-
111-117-119-127-133-137-141-147-149-159-165-169-175-177-185-187-
189-210900-
/O.NEW.KWNS.TO.A.0016.140221T0050Z-140221T0900Z/

TN
.    TENNESSEE COUNTIES INCLUDED ARE

BEDFORD              CANNON              CHEATHAM
CLAY                 COFFEE              CUMBERLAND
DAVIDSON             DE KALB             FENTRESS
FRANKLIN             GILES               GRUNDY
JACKSON              LAWRENCE            LINCOLN
MACON                MARSHALL            MAURY
MOORE                OVERTON             PICKETT
PUTNAM               ROBERTSON           RUTHERFORD
SMITH                SUMNER              TROUSDALE
VAN BUREN            WARREN              WHITE
WILLIAMSON           WILSON

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ALABAMA COUNTIES INCLUDED ARE
    
     AUTAUGA              BLOUNT              CALHOUN            
     CHEROKEE             CHILTON             CLAY               
     COLBERT              COOSA               CULLMAN            
     DEKALB               ELMORE              ETOWAH             
     FAYETTE              FRANKLIN            JACKSON            
     JEFFERSON            LAMAR               LAUDERDALE         
     LAWRENCE             LIMESTONE           LOWNDES            
     MADISON              MARION              MARSHALL           
     MONTGOMERY           MORGAN              SHELBY             
     ST. CLAIR            TALLADEGA           WALKER             
     WINSTON

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TORNADO WARNING
TNC147-165-210145-
/O.NEW.KOHX.TO.W.0001.140221T0115Z-140221T0145Z/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN ROBERTSON COUNTY IN MIDDLE TENNESSEE...
  NORTH CENTRAL SUMNER COUNTY IN MIDDLE TENNESSEE...

* UNTIL 745 PM CST

* AT 713 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED NEAR SPRINGFIELD...AND MOVING NORTHEAST
  AT 65 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CROSS PLAINS...PORTLAND...ORLINDA AND MITCHELLVILLE.

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TORNADO WARNING
TNC037-119-149-187-210230-
/O.NEW.KOHX.TO.W.0002.140221T0156Z-140221T0230Z/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN MAURY COUNTY IN MIDDLE TENNESSEE...
  WESTERN RUTHERFORD COUNTY IN MIDDLE TENNESSEE...
  WILLIAMSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 830 PM CST

* AT 750 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES WEST OF SPRING HILL...OR 8 MILES NORTH OF
  COLUMBIA...AND MOVING EAST NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...SPRING HILL...BRENTWOOD...NOLENSVILLE...LA VERGNE...
  SMYRNA...THOMPSONS STATION...EAGLEVILLE...TRIUNE...ROCKVALE AND
  CHRISTIANA.

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mcd0132.gif

 

MESOSCALE DISCUSSION 0132
   NWS STORM PREDICTION CENTER NORMAN OK
   0929 PM CST THU FEB 20 2014

   AREAS AFFECTED...ERN KY...ERN TN...PARTS OF NRN GA...FAR SWRN VA/NC

   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

   VALID 210329Z - 210430Z

   PROBABILITY OF WATCH ISSUANCE...80 PERCENT

   SUMMARY...A NEW WW WILL BE COORDINATED WITH AFFECTED WFO/S FROM ERN
   KY...ERN TN INTO PARTS OF NRN GA...AND FAR SWRN VA/NC.

   DISCUSSION...TRENDS IN REGIONAL RADAR IMAGERY THROUGH 0315Z SHOWED A
   WELL-DEFINED FAST MOVING /ENE AT 50 KT/ QLCS EXTENDING FROM SOUTH
   CENTRAL KY THROUGH MIDDLE TN /E OF BNA/ TO NWRN AL AND INTO ERN MS.
   DESPITE A MODESTLY UNSTABLE ENVIRONMENT WITH ERN EXTENT...THE
   STRENGTH OF THE PARENT MS VALLEY MID-UPPER LEVEL TROUGH BEING
   FURTHER INTENSIFIED AS A SHORTWAVE TROUGH MOVES INTO THE BASE OF
   THIS SYSTEM IS EXPECTED TO SUPPORT A CONTINUED SEVERE WEATHER THREAT
   INTO ERN KY...ERN TN...NRN GA AND ADJACENT PARTS OF NC/VA.  THE
   STRENGTHENING OF THE SYSTEM IS ALSO EVIDENT IN THE STRONG SURFACE
   PRESSURE RISES EXTENDING FROM THE LOWER OH VALLEY TO E
   TX...ENHANCING THE EWD MOVEMENT OF THE COLD FRONT TOWARD THE QLCS.
   IN ADDITION TO A CONTINUED THREAT FOR DAMAGING WINDS...LOW LEVEL AND
   DEEP LAYER SHEAR WILL FURTHER SUPPORT EMBEDDED MESOVORTICES IN THE
   QLCS FOR A TORNADO THREAT TO PERSIST.  AREA VADS SHOW LOW LEVEL
   HODOGRAPH CURVATURE AND SFC-1 KM SHEAR OF 35+ KT SUPPORTIVE OF THE
   TORNADO THREAT.

 

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Latest Tor Warning.

 

 

 

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
NORTHEASTERN CLAY COUNTY IN MIDDLE TENNESSEE...
NORTH CENTRAL OVERTON COUNTY IN MIDDLE TENNESSEE...
WESTERN PICKETT COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1000 PM CST

* AT 942 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED 9 MILES WEST OF BYRDSTOWN...AND MOVING
NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
BYRDSTOWN.

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
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ww0019_radar.gif

 

URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 19
   NWS STORM PREDICTION CENTER NORMAN OK
   1050 PM EST THU FEB 20 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * TORNADO WATCH FOR PORTIONS OF
     NORTH GEORGIA
     EASTERN KENTUCKY
     FAR WESTERN NORTH CAROLINA
     EASTERN TENNESSEE
     FAR SOUTHWEST VIRGINIA

   * EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1050 PM
     UNTIL 500 AM EST.

   * PRIMARY THREATS INCLUDE...
     SEVERAL TORNADOES POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY

   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
   MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF
   JACKSON KENTUCKY TO 35 MILES EAST SOUTHEAST OF ROME GEORGIA.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU9).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

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