000 FZNT02 KNHC 190920 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU APR 19 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC THU APR 19. 24 HOUR FORECAST VALID 0600 UTC FRI APR 20. 48 HOUR FORECAST VALID 0600 UTC SAT APR 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN AREA BOUNDED 31N53W TO 31N35W TO 12N35W TO 31N53W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN N SWELL...HIGHEST NEAR 31N35W. .24 HOUR FORECAST WITHIN AREA BOUNDED BY 31N35W TO 07N35W TO 07N50W TO 17N61W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N SWELL. .48 HOUR FORECAST WITHIN AREA BOUNDED BY 30N35W TO 07N35W TO 06N53W TO 17N58W TO 30N35W WINDS 20 KT OR LESS. SEAS TO 9 FT IN N SWELL. .CARIBBEAN FROM 11N TO 16N BETWEEN 65W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST FROM 11N TO 16N BETWEEN 70W AND 81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT. .48 HOUR FORECAST FROM 11N TO 16N BETWEEN 74W AND 82W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.