000 FZNT02 KNHC 191539 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU APR 19 2012 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC THU APR 19. 24 HOUR FORECAST VALID 1200 UTC FRI APR 20. 48 HOUR FORECAST VALID 1200 UTC SAT APR 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT 31N50W TO 23N55W. N OF 27N WITHIN 240 NM E OF FRONT SW WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. LOW PRES 1009 MB AT 30N58W. WITHIN 240 NM S SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST LOW PRES 1009 MB AT 31N53W. DISSIPATING COLD FRONT 31N50W TO 22N55W. N OF 28N E OF FRONT TO 42W S TO SW WINDS 20 KT. SEAS 8 FT. .48 HOUR FORECAST LOW PRES N OF AREA. FRONT DISSIPATED. 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. .24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO 48 HOUR FORECAST COLD FRONT 29N93W TO 21N97W. W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 8 FT. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER DGS. NATIONAL HURRICANE CENTER.