000 FZNT02 KNHC 210300 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC THU JUN 21 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC THU JUN 21. 24 HOUR FORECAST VALID 0000 UTC FRI JUN 22. 48 HOUR FORECAST VALID 0000 UTC SAT JUN 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 48 HOUR FORECAST FROM 08N TO 11N BETWEEN 50W AND 54W NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. .CARIBBEAN 24 HOUR FORECAST S OF 13N BETWEEN 68W AND 73W... INCLUDING GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST S OF 13N BETWEEN 69W AND 74W...INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.