110 FZNT02 KNHC 212015 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC TUE AUG 21 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC TUE AUG 21. 24 HOUR FORECAST VALID 1800 UTC WED AUG 22. 48 HOUR FORECAST VALID 1800 UTC THU AUG 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .CARIBBEAN FROM 11N TO 15N BETWEEN 68W AND 78W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS TO 11 FT. .24 HOUR FORECAST S OF 13N BETWEEN 69W AND 74W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 11N TO 15N BETWEEN 74W AND 81W WINDS 20 KT OR LESS. SEAS TO 10 FT IN NE TO E SWELL. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.