000 FZNT02 KNHC 192135 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC THU APR 19 2012 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC THU APR 19. 24 HOUR FORECAST VALID 1800 UTC FRI APR 20. 48 HOUR FORECAST VALID 1800 UTC SAT APR 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT 31N47W TO 22N52W TO 18N57W. N OF 24N WITHIN 240 NM E OF FRONT SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. LOW PRES 1009 MB AT 29N56W MOVING NE AT 12 KT. WITHIN 240 NM SW SEMICIRCLE WINDS 20 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES N OF AREA. COLD FRONT DISSIPATED. TROUGH FROM 31N47W TO 24N53W. N OF 28N WITHIN 180 NM E OF TROUGH S WINDS 20 KT. SEAS 8 FT. .48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. .CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 80W NE TO E WINDS 20 KT. SEAS TO 8 FT. .18 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO 36 HOUR FORECAST COLD FRONT 30N93W TO 26N97W. W OF FRONT NW TO N WINDS 20 TO 30 KT. SEAS 8 FT. .48 HOUR FORECAST COLD FRONT FROM 29N89W TO 21N95W TO 18N95W. W OF FRONT NW TO N WINDS 25 TO 30 KT. SEAS TO 9 FT. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.