000 FZNT02 KNHC 180249 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC THU OCT 18 2012 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 OCT 18. 24 HOUR FORECAST VALID 0000 UTC FRI OCT 19. 48 HOUR FORECAST VALID 0000 UTC SAT OCT 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST .ATLC TROUGH 31N56W TO 23N63W. N OF 28N E OF TROUGH TO 50W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN MIXED SE AND SW SWELL. N OF 27N W OF TROUGH TO 63W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N AND NW SWELL. .24 HOUR FORECAST N OF 29N BETWEEN 50W AND 58W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND SE SWELL. .36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC FROM 19N TO 27N E OF 50W WINDS 20 KT OR LESS. SEAS 8 FT. .24 HOUR FORECAST FROM 19N TO 27N E OF 48W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE AND SE SWELL. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER COBB. NATIONAL HURRICANE CENTER.