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WWUS20 KWNS 291044

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SPC WW 291044

INZ000-KYZ000-TNZ000-291800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 46

NWS STORM PREDICTION CENTER NORMAN OK

440 AM CST WED FEB 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN INDIANA

       CENTRAL AND EASTERN KENTUCKY

       NORTHERN MIDDLE TENNESSEE



EFFECTIVE THIS WEDNESDAY MORNING FROM 440 AM UNTIL NOON CST.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH NORTHEAST OF

LOUISVILLE KENTUCKY TO 55 MILES SOUTH OF BOWLING GREEN KENTUCKY.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 43...WW 44...WW 45...



DISCUSSION...SRN IL/FAR SE MO SQLN WITH EMBEDDED...LONG-LIVED

SUPERCELLS EXPECTED TO CONTINUE E AT 50 KTS.  SUBSTANTIAL LOW LVL

AIR MASS RECOVERY WILL PERSIST AHEAD OF SQLN ACROSS CNTRL KY...WITH

SFC DEWPOINTS IN THE UPR 50S TO LOW 60S F EXPECTED OVER WW AREA BY

12-15Z.  LARGE SCALE FORCING FOR ASCENT WILL BE WEAK.  BUT PRESENCE

OF EXISTING LONG-LIVED STORMS...STRENGTH OF WIND FIELD...AND

POTENTIAL FOR ISOLD WAA STORMS TO BECOME ROOTED IN THE BOUNDARY

LAYER AHEAD OF SQLN SUGGEST THE POSSIBILITY FOR TORNADOES IN

ADDITION TO LOCALLY DMGG WIND.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

450. MEAN STORM MOTION VECTOR 26050.





...CORFIDI

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