SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 427 NWS STORM PREDICTION CENTER NORMAN OK 150 PM EDT MON JUN 25 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF A LARGE PART OF FLORIDA COASTAL WATERS EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 1100 PM EDT. TORNADOES...THUNDERSTORM WIND GUSTS TO 70 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 50 MILES SOUTHWEST OF WEST PALM BEACH FLORIDA TO 60 MILES NORTH OF CROSS CITY FLORIDA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). 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 424. WATCH NUMBER 424 WILL NOT BE IN EFFECT AFTER 150 PM EDT. CONTINUE...WW 425...WW 426... DISCUSSION...LOW LEVEL WIND SHEAR/SRH EAST OF TS DEBBY REMAIN FAVORABLE FOR ROTATING UPDRAFTS BASED ON VAD WIND PROFILES FROM AREA RADARS...AND RADAR HAS SHOWN A FEW SMALL ROTATION COUPLETS.ESPECIALLY EAST OF TLH...NE OF TPA...AND NE OF LAKE OKEECHOBEE DURING THE LAST HOUR. ALTHOUGH LITTLE CG LIGHTNING IS INDICATED ATTM...POTENTIAL EXISTS FOR SMALL SUPERCELLS TO DEVELOP AS ADDITIONAL CONVECTIVE BANDS ROTATE ONSHORE FROM THE ERN GULF. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 19035. ...WEISS
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