000 FZNT02 KNHC 181535 HSFAT2 HIGH SEAS FORECAST NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU SEP 18 2008 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 BETWEEN 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1200 UTC THU SEP 18. 24 HOUR FORECAST VALID 1200 UTC FRI SEP 19. 48 HOUR FORECAST VALID 1200 UTC SAT SEP 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT 31N76W TO 29N81W...TROUGH 30N71W TO 24N75W. NW OF FRONT NE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST FRONT AND TROUGH MERGED ALONG 31N73W TO 25N75W. N OF 29N FRONT NE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST TROUGH 31N76W TO 23N79W. N OF 30N W OF TROUGH NE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .ATLC TROPICAL WAVE ALONG ALONG 62W S OF 20N. FROM 17N TO 22N WITHIN 240 NM E OF WAVE AXIS E TO SE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST TROPICAL WAVE ALONG 67W S OF 20N. FROM 17N TO 21N E OF WAVE AXIS TO 60W E TO SE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST TROPICAL WAVE ALONG 73W S OF 20N. FROM 16N TO 20N E OF WAVE AXIS TO 67W E TO SE WINDS TO 20 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO FRONTAL TROUGH 28N82W TO 27N90W TO 19N96W. S OF 24N W OF TROUGH N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST TROUGH 29N93W TO 19N95W. W OF TROUGH NW TO N WINDS 20 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST FRONTAL TROUGH 27N87W TO LOW PRES 29N92W 1010 MB TO 19N95W. N OF FRONTAL TROUGH E OF 92W SE WINDS 20 KT. N OF FRONTAL TROUGH W OF 92W N TO NE WINDS 20 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER COBB. TROPICAL PREDICTION CENTER.