000 FZNT02 KNHC 200848 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU JUL 20 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC THU JUL 20. 24 HOUR FORECAST VALID 0600 UTC FRI JUL 21. 48 HOUR FORECAST VALID 0600 UTC SAT JUL 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC FROM 15N TO 19N BETWEEN 42W AND 48W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC S OF 21N BETWEEN 71W AND 74W...INCLUDING APPROACH TO THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .42 HOUR FORECAST S OF 21N BETWEEN 71W AND 74W...INCLUDING APPROACH TO THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST S OF 21N BETWEEN 71W AND 74W...INCLUDING APPROACH TO THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .CARIBBEAN FROM 11N TO 17N BETWEEN 69W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. FROM 11N TO 16N BETWEEN 77W AND 80W WINDS 20 KT OR LESS. SEAS 8 FT IN E SWELL. .24 HOUR FORECAST FROM 11N TO 16N BETWEEN 74W AND 83W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. N OF 16N BETWEEN 71W AND 73W E WINDS 20 TO 25 KT. SEAS TO 8 FT. ELSEWHERE FROM 11N TO 16N BETWEEN 72W AND 80W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER AL. NATIONAL HURRICANE CENTER.