000 FZNT02 KNHC 192119 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC THU SEP 19 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 THU SEP 19. 24 HOUR FORECAST VALID 1800 UTC FRI SEP 20. 48 HOUR FORECAST VALID 1800 UTC SAT SEP 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 42 HOUR FORECAST LOW PRES NEAR 29N61W 1008 MB. FORECAST WATERS WITHIN 180 NM N QUADRANT NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST LOW PRES NEAR 29.5N61W 1007 MB. WITHIN 240 NM SE SEMICIRCLE S TO SW WINDS 20 TO 25 KT. SEAS TO 8 FT. .GULF OF MEXICO LOW PRES NEAR 21N95W 1004 MB. WITHIN 240 NM NE AND WITHIN 75 NM SW SEMICIRCLES OF CENTER WINDS 20 TO 25 KT. SEAS TO 10 FT. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 22.5N 96.5W 1003 MB. WITHIN 180 NM NE AND WITHIN 60 NM SW SEMICIRCLES OF CENTER WINDS 20 TO 30 KT. SEAS TO 10 FT. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 24.5N 97.5W 1002 MB. WITHIN 120 NM OF LOW CENTER WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER NELSON. NATIONAL HURRICANE CENTER.