

482 

WWUS20 KWNS 212345

SEL5

SPC WW 212345

MSZ000-TNZ000-220600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 585

NWS STORM PREDICTION CENTER NORMAN OK

545 PM CST SAT DEC 21 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHERN MISSISSIPPI

  WESTERN AND MIDDLE TENNESSEE



* EFFECTIVE THIS SATURDAY AFTERNOON FROM 545 PM UNTIL MIDNIGHT

  CST.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES WITH A FEW INTENSE TORNADOES POSSIBLE

  NUMEROUS DAMAGING WIND GUSTS TO 70 MPH LIKELY



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 90 MILES NORTHEAST OF JACKSON

TENNESSEE TO 35 MILES SOUTH SOUTHWEST OF OXFORD MISSISSIPPI.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.



&&



OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 582. WATCH NUMBER 582 WILL NOT BE IN EFFECT AFTER

545 PM CST. CONTINUE...WW 583...WW 584...



DISCUSSION...EXTENSIVE QLCS WILL CONTINUE TO MOVE EWD ACROSS NRN MS

AND FROM WRN INTO MIDDLE TN...AS EMBEDDED CELLS MOVE RAPIDLY TO THE

NE.  A LOW CAPE/HIGH SHEAR ENVIRONMENT WILL FAVOR EMBEDDED

CIRCULATIONS WITH THE POTENTIAL TO PRODUCE A FEW TORNADOES...AS WELL

AS SWATHS OF DAMAGING WINDS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

450. MEAN STORM MOTION VECTOR 24050.





...THOMPSON

