000 FZNT02 KNHC 181553 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC SAT MAY 18 2013 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 SAT MAY 18. 24 HOUR FORECAST VALID 1200 UTC SUN MAY 19. 48 HOUR FORECAST VALID 1200 UTC MON MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .CARIBBEAN FROM 11N TO 13N BETWEEN 72W AND 75W WINDS 20 KT OR LESS. SEAS TO 8 FT. .24 HOUR FORECAST FROM 11N TO 13N BETWEEN 72W AND 76W WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST FROM 11N TO 13N BETWEEN 72W TO 75W E TO NE WINDS 20 KT OR LESS. SEAS TO 8 FT IN E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.