677 FZNT02 KNHC 171548 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC FRI AUG 17 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC FRI AUG 17. 24 HOUR FORECAST VALID 1200 UTC SAT AUG 18. 48 HOUR FORECAST VALID 1200 UTC SUN AUG 19. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 12 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN FROM 10.5N TO 13.5N BETWEEN 72W AND 78W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .12 HOUR FORECAST FROM 11N TO 14N BETWEEN 70W AND 77W NE TO E WINDS 20 TO 30 KT. SEAS TO 9 FT. .24 HOUR FORECAST FROM 10.5N TO 14N BETWEEN 72W AND 78W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .48 HOUR FORECAST FROM 11N TO 14N BETWEEN 70W AND 76W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE TO E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER LATTO. NATIONAL HURRICANE CENTER.