000 FZNT02 KNHC 180230 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC TUE AUG 18 2015 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC TUE AUG 18. 24 HOUR FORECAST VALID 0000 UTC WED AUG 19. 48 HOUR FORECAST VALID 0000 UTC THU AUG 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE... NEAR 10.5N35.5W 1011 MB. OVER FORECAST WATERS WITHIN 240 NM SE SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE S OF 16N E OF 37W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE SWELL. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 10.5N37.5W 1010 MB. OVER FORECAST WATERS WITHIN 180 NM SE SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE S OF 16N E OF 39W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 11.5N41W 1009 MB. WITHIN 180 NM OF CENTER EXCEPT W QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT. ELSEWHERE S OF 16N E OF 43W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE AND SE SWELL. .CARIBBEAN FROM 11N TO 13.5N BETWEEN 70W AND 75W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 11N TO 12.5N BETWEEN 75W AND 78W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E SWELL. .24 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 69W AND 75W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .48 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 75W NE TO E WINDS 25 TO 30 KT. SEAS TO 10 FT. ELSEWHERE FROM 11N TO 15N BETWEEN 69W AND 78W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .CARIBBEAN 48 HOUR FORECAST S OF 17.5N W OF 85W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO 48 HOUR FORECAST FROM 20N TO 22.5N BETWEEN 87.5N AND 91W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.