000 FZNT02 KNHC 172200 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC MON AUG 17 2015 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC MON AUG 17. 24 HOUR FORECAST VALID 1800 UTC TUE AUG 18. 48 HOUR FORECAST VALID 1800 UTC WED AUG 19. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 18 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE... NEAR 10.5N36W 1012 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 10.5N37W 1012 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 11.5N40W 1010 MB. WITHIN 180 NM OF CENTER EXCEPT W QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT. ELSEWHERE S OF 15N E OF 43W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE SWELL. .CARIBBEAN FROM 11.5N TO 13.5N BETWEEN 69W AND 74W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 11N TO 13N BETWEEN 74W AND 77W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E SWELL. .24 HOUR FORECAST FROM 11.5N TO 13.5N BETWEEN 70W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .48 HOUR FORECAST FROM 11N TO 14.5N BETWEEN 69W AND 78W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.