000 FZNT02 KNHC 202140 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC TUE AUG 20 2013 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 20. 24 HOUR FORECAST VALID 1800 UTC WED AUG 21. 48 HOUR FORECAST VALID 1800 UTC THU AUG 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 06 HOUR FORECAST ATLC S OF 22N BETWEEN 70W AND 74W INCLUDING APPROACH TO WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN 12 HOUR FORECAST S OF 16N BETWEEN 67W AND 73W E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST S OF 17N BETWEEN 68W AND 74W E WINDS 20 TO 25 KT. SEAS TO 9 FT. .36 HOUR FORECAST FROM 12N TO 17N BETWEEN 70W AND 78W E WINDS 20 TO 25 KT. SEAS TO 9 FT. .48 HOUR FORECAST FROM 12N TO 17N BETWEEN 72W AND 80W E WINDS 20 TO 25 KT. SEAS 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.