000 FZNT02 KNHC 210850 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC TUE JUL 21 2015 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC TUE JUL 21. 24 HOUR FORECAST VALID 0600 UTC WED JUL 22. 48 HOUR FORECAST VALID 0600 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 LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST FROM 12N TO 15N BETWEEN 70W AND 76W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .CARIBBEAN 48 HOUR FORECAST S OF 17N BETWEEN 86W AND 87.5W 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 MUNDELL. NATIONAL HURRICANE CENTER.