000 FZNT02 KNHC 132100 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC THU APR 13 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC THU APR 13. 24 HOUR FORECAST VALID 1800 UTC FRI APR 14. 48 HOUR FORECAST VALID 1800 UTC SAT APR 15. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC LOW PRES NEAR 25N69W 1011 MB. OVER FORECAST WATERS WITHIN 450 NM N SEMICIRCLE OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST LOW PRES NEAR 25N67W 1012 MB. WITHIN 420 NM NW QUADRANT OF LOW NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST WEAKENING LOW PRES NEAR 22N65W 1015 MB. WITHIN 360 NM NW OF LINE FROM 30N56W TO 23N70W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. .ATLC COLD FRONT FROM 30N35W TO 25N45W. N OF 29N BETWEEN 37W AND 44W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .24 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N35W TO 21N40W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN FROM 10.5N TO 12N BETWEEN 74W AND 76W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .GULF OF MEXICO 12 HOUR FORECAST FROM 19N TO 22N BETWEEN 89W AND 91.5W N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 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 MUNDELL. NATIONAL HURRICANE CENTER.