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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 82

NWS STORM PREDICTION CENTER NORMAN OK

1215 PM EDT THU APR 4 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN FLORIDA

       COASTAL WATERS



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1215 PM UNTIL

800 PM EDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...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 EITHER SIDE OF A LINE FROM 35 MILES WEST SOUTHWEST OF FORT

MEYERS FLORIDA TO 35 MILES SOUTHEAST OF VERO BEACH FLORIDA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...TSTMS ASSOCIATED WITH E GULF OF MEXICO MCS EXPECTED TO

CONTINUE EWD INTO THE SRN HALF OF THE FL PENINSULA THROUGH THIS

AFTN. CURRENT WIND PROFILES OVER CNTRL/SRN FL...ALREADY SUFFICIENT

FOR SUSTAINED STORMS/SUPERCELLS...EXPECTED TO SOMEWHAT STRENGTHEN

WITH THE CONTINUED ESE ADVANCE OF ARKLATEX UPR TROUGH. AT THE SAME

TIME...OTHER STORMS MAY FORM ALONG AND S OF QSTNRY W-E OUTFLOW

BOUNDARY NOW EXTENDING FROM S OF TPA TO NEAR MLB. COMBINATION OF

STRENGTHENING SHEAR...MODERATE SFC HEATING...AND

MOISTURE-RICH...CONFLUENT LOW-LVL SLY FLOW S OF THE BOUNDARY/E OF

THE MCS SUGGEST POTENTIAL FOR A FEW LONGER-LIVED SUPERCELLS WITH A

RISK FOR TORNADOES...DMGG WIND....AND POSSIBLY SVR HAIL.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 27030.





...CORFIDI

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