851 FZNT02 KNHC 151537 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU JUL 15 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 THU JUL 15. 24 HOUR FORECAST VALID 1200 UTC FRI JUL 16. 48 HOUR FORECAST VALID 1200 UTC SAT JUL 17. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC AND CARIBBEAN 09 HOUR FORECAST FROM 19.5N TO 20.5N BETWEEN 70.5W AND 74W...INCLUDING THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .30 HOUR FORECAST FROM 20N TO 20.5N BETWEEN 71W AND 72.5W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN WITHIN 12N69W TO 11N78W TO 13N77W TO 13N71W TO 12N69W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST WITHIN 11N70W TO 12N73W TO 10N77W TO 14N75W TO 14N72W TO 11N70W E WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST WITHIN 12N70W TO 11N74W TO 10N76W TO 13N78W TO 16N73W TO 12N70W E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER HAGEN. NATIONAL HURRICANE CENTER.