

963 

WWUS20 KWNS 211801

SEL2

SPC WW 211801

ARZ000-MSZ000-TNZ000-220200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 582

NWS STORM PREDICTION CENTER NORMAN OK

1200 PM CST SAT DEC 21 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EASTERN ARKANSAS

  WESTERN MISSISSIPPI

  WESTERN TENNESSEE



* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM NOON UNTIL

  800 PM CST.



* PRIMARY THREATS INCLUDE...

  SEVERAL INTENSE 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 10 MILES WEST SOUTHWEST OF

GREENVILLE MISSISSIPPI TO 50 MILES NORTHEAST OF DYERSBURG

TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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...CONTINUE...WW 580...WW 581...



DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS AFTERNOON

WHILE MOVING RAPIDLY NORTHEAST ACROSS THE WATCH AREA.  WHILE

INSTABILITY WILL REMAIN WEAK...THE PRESENCE OF A VERY STRONG WIND

FIELD WILL SUPPORT SUPERCELL AND BOWING STRUCTURES WITH A RISK FOR

TORNADOES --SOME SIGNIFICANT-- AND CORRIDORS OF WIND DAMAGE.



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

400. MEAN STORM MOTION VECTOR 22050.





...MEAD

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