000 FZNT02 KNHC 190334 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC THU APR 19 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC THU APR 19. 24 HOUR FORECAST VALID 0000 UTC FRI APR 20. 48 HOUR FORECAST VALID 0000 UTC SAT APR 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN AREA BOUNDED 31N55W TO 31N35W TO 12N35W TO 31N55W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN N SWELL...HIGHEST NEAR 31N35W. .24 HOUR FORECAST WITHIN AREA BOUNDED BY 31N40W TO 31N35W TO 07N35W TO 07N50W TO 17N60W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N SWELL. .48 HOUR FORECAST WITHIN AREA BOUNDED BY 31N35W TO 07N35W TO 06N52W TO 19N58W TO 31N35W WINDS 20 KT OR LESS. SEAS TO 9 FT IN N SWELL. .CARIBBEAN FROM 11N TO 13N BETWEEN 65W AND 76W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST FROM 11N TO 16N BETWEEN 64W AND 80W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT. .48 HOUR FORECAST FROM 11N TO 16N BETWEEN 70W AND 81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.