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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 121

NWS STORM PREDICTION CENTER NORMAN OK

215 AM EDT SAT MAY 1 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN INDIANA

       WEST-CENTRAL KENTUCKY



EFFECTIVE THIS SATURDAY MORNING FROM 215 AM UNTIL 800 AM EDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

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



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 75 MILES SOUTH SOUTHWEST OF

OWENSBORO KENTUCKY TO 30 MILES NORTH OF INDIANAPOLIS INDIANA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 117...WW 118...WW

119...WW 120...



DISCUSSION...LINE OF SVR TSTMS FCST TO CONTINUE MOVING EWD TO NEWD

ACROSS WW AREA...WITH MAIN CONCERN BEING DAMAGING GUSTS.  NARROW

CORRIDOR OF NEARLY SFC-BASED BUOYANCY...STG LOW-LEVEL AND DEEP-LAYER

SHEAR...AND POTENTIAL FOR STG ASCENT ALONG LEADING EDGE OF THIS

ACTIVITY ALSO PORTENDS SOME POTENTIAL FOR SHORT-LIVED/QLCS

TORNADOES...FOR ANOTHER 2-3 HOURS.  OVERALL SVR THREAT FCST TO

DIMINISH AS ACTIVITY MOVES INTO ERN PORTIONS WW WHERE IT WILL MOVE

OVER PROGRESSIVELY STRONGER MLCINH.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.

MEAN STORM MOTION VECTOR 25045.





...EDWARDS/CORFIDI

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