000 FZNT02 KNHC 211523 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC TUE APR 21 2015 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC TUE APR 21. 24 HOUR FORECAST VALID 1200 UTC WED APR 22. 48 HOUR FORECAST VALID 1200 UTC THU APR 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT FROM 31N37W TO 26N50W THEN STATIONARY TO 26N60W. N OF 30N BETWEEN 42W AND 50W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL. .24 HOUR FORECAST TROUGH FROM 26N35W TO 25N50W. N OF 26N E OF 55W WINDS 20 KT OR LESS. SEAS 9 TO 13 FT IN N SWELL. .48 HOUR FORECAST NEW COLD FRONT FROM 31N49 TO 26N60W. N OF 21N E OF 57W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N SWELL. .ATLC S OF 10N E OF 55W WINDS 20 KT OR LESS. SEAS TO 8 FT IN N SWELL. .12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN FROM 11N TO 14N BETWEEN 71W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. .24 HOUR FORECAST FROM 10N TO 15N BETWEEN 72W AND 79W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST FROM 10N TO 15N BETWEEN 74W AND 79W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .CARIBBEAN S OF 18N BETWEEN 85W AND 87W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .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 DGS. NATIONAL HURRICANE CENTER.