687 FZNT02 KNHC 090318 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC THU DEC 09 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 DEC 09. 24 HOUR FORECAST VALID 0000 UTC FRI DEC 10. 48 HOUR FORECAST VALID 0000 UTC SAT DEC 11. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC FROM 09N TO 28N E OF 42W...AND FROM 19N TO 25N BETWEEN 42W AND 52W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN NE SWELL. ELSEWHERE E OF A LINE FROM 31N43W TO 28N51W TO 23N55W TO 14N50W TO 07N45W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. FROM 10N TO 18N BETWEEN 52W AND 59W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .24 HOUR FORECAST FROM 20N TO 27N E OF 42W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE E OF A LINE FROM 31N37W TO 28N45W TO 19N55W...AND S OF 10N E OF 48W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .48 HOUR FORECAST E OF A LINE FROM 27N35W TO 20N52W TO 07N52W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .CARIBBEAN FROM 10.5N TO 15N BETWEEN 70W AND 80W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST FROM 10N TO 15N BETWEEN 70W AND 79W... INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST FROM 10N TO 16N BETWEEN 70W AND 78W... INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. .CARIBBEAN 24 HOUR FORECAST N OF 18.5N BETWEEN 73.5W AND 76W...INCLUDING THE WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.