000 FZNT02 KNHC 190946 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU APR 19 2012 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. SECURITE ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 0600 UTC THU APR 19. 24 HOUR FORECAST VALID 0600 UTC FRI APR 20. 48 HOUR FORECAST VALID 0600 UTC SAT APR 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT FROM 31N50W TO 22N61W. N OF 27N WITHIN 180 NM E OF FRONT SW WINDS 20 TO 30 KT. SEAS TO 10 FT. LOW PRES 1008 MB AT 31N57W. WITHIN 270 NM S SEMICIRCLE OF LOW PRES WINDS 20 TO 25 KT. SEAS TO 10 FT IN BROAD MIX OF SWELL. .24 HOUR FORECAST LOW PRES 100 MB AT 31N53W. DISSIPATING COLD FRONT 31N50W TO 20N55W. N OF 26N E OF FRONT TO 42W S TO SW WINDS 20 KT. SEAS 8 FT. N OF 27N W OF FRONT TO 53W WINDS LESS THAN 20 KT. SEAS 8 FT IN BROAD MIX OF SWELL. .48 HOUR FORECAST LOW PRES N OF AREA. FRONT DISSIPATED. TROUGH FROM 31N48W TO 22N52W. N OF 26N E OF TROUGH TO 40W S TO SW WINDS 20 KT. SEAS TO 8 FT N OF 30N. .CARIBBEAN FROM 11N TO 16N BETWEEN 70W AND 80W NE TO E WINDS 20 KT. SEAS TO 8 FT. FROM 18N TO 20N E OF 76W...INCLUDING WINDWARD PASSAGE E WINDS 20 KT. SEAS 8 FT. .12 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST COLD FRONT FROM 29N95W TO 26N97W. W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER WALLY BARNES. NATIONAL HURRICANE CENTER.