

944 

WWUS20 KWNS 212249

SEL3

SPC WW 212249

INZ000-KYZ000-220500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 583

NWS STORM PREDICTION CENTER NORMAN OK

450 PM CST SAT DEC 21 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EXTREME SOUTHERN INDIANA

  WESTERN AND PARTS OF CENTRAL KENTUCKY



* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 450 PM UNTIL

  1100 PM CST.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST OF

LOUISVILLE KENTUCKY TO 40 MILES WEST SOUTHWEST OF FORT CAMPBELL

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 582...



DISCUSSION...QLCS IS ORGANIZING NEAR THE MS RIVER AND WILL SURGE

NEWD THROUGH EARLY TONIGHT IN ASSOCIATION WITH A DEEPENING SURFACE

CYCLONE.  THOUGH INSTABILITY IS WEAK...IT IS BASED NEAR THE GROUND

AND THE MOIST PROFILES WITH VERY STRONG LOW-LEVEL SHEAR WILL FAVOR

EMBEDDED CIRCULATIONS CAPABLE OF PRODUCING A COUPLE OF TORNADOES AND

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

350. MEAN STORM MOTION VECTOR 24045.





...THOMPSON

