770 FZNT02 KNHC 171456 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC MON SEP 17 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 MON SEP 17. 24 HOUR FORECAST VALID 1200 UTC TUE SEP 18. 48 HOUR FORECAST VALID 1200 UTC WED SEP 19. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC FROM 10N TO 14N BETWEEN 38W AND 42W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .24 HOUR FORECAST FROM 12N TO 16N BETWEEN 43W AND 50W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .48 HOUR FORECAST FROM 12N TO 17N BETWEEN 50W AND 58W E WINDS 20 TO 25 KT. SEAS TO 9 FT. .CARIBBEAN LOW PRESSURE NEAR 17N78W 1008 MB. WITHIN 60 NM E OF LOW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .06 HOUR FORECAST LOW PRES DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN 24 HOUR FORECAST FROM 11N TO 14N BETWEEN 72W AND 76W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST FROM 11N TO 15N BETWEEN 71W AND 78W E WINDS 20 TO 25 KT. SEAS TO 9 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.