Monday, June 25, 2012

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





   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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