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272 

WWUS20 KWNS 251752

SEL7

SPC WW 251752

FLZ000-CWZ000-260300-



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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