000 FZNT02 KNHC 212143 HSFAT2 HIGH SEAS FORECAST NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC MON SEP 21 2009 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC MON SEP 21. 24 HOUR FORECAST VALID 1800 UTC TUE SEP 22. 48 HOUR FORECAST VALID 1800 UTC WED SEP 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC LOW PRES 15N48W 1010 MB. FROM 17N TO 24N E OF 58W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST TROUGH 17N50W TO 25N49W. FROM 20N TO 27N BETWEEN 42W AND 53W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST TROUGH 18N56W TO 25N50W. FROM 24N TO 27N BETWEEN 45W AND 55W E TO SE WINDS 20 KT. SEAS 8 FT. .CARIBBEAN FROM 11N TO 15N BETWEEN 65W AND 80W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. TROPICAL PREDICTION CENTER.