000 FZNT02 KNHC 210218 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC TUE JUL 21 2015 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 TUE JUL 21. 24 HOUR FORECAST VALID 0000 UTC WED JUL 22. 48 HOUR FORECAST VALID 0000 UTC THU JUL 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .CARIBBEAN FROM 11.5N TO 13N BETWEEN 74W AND 76W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST FROM 12N TO 13N BETWEEN 71W AND 73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .CARIBBEAN 48 HOUR FORECAST S OF 17N BETWEEN 86W AND 8.5W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO 48 HOUR FORECAST FROM 21N TO 22N BETWEEN 89W AND 90W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.