000 FZNT02 KNHC 180838 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU MAY 18 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 MAY 18. 24 HOUR FORECAST VALID 0600 UTC FRI MAY 19. 48 HOUR FORECAST VALID 0600 UTC SAT MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 28N35W TO 25N40W TO 23N41W TO 23N39W TO 25N37W TO 24N35W TO 28N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. .24 HOUR FORECAST WITHIN 29N35W TO 26N37W TO 26N40W TO 24N43W TO 21N39W TO 19N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. .48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC 30 HOUR FORECAST WITHIN 31N68W TO 31N68.5W TO 31N68W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE SWELL. .42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN 18 HOUR FORECAST WITHIN 13N71W TO 12N72W TO 13N74W TO 11N75W TO 12N72W TO 11N70W TO 13N71W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WITHIN 13N71W TO 12N73W TO 12N76W TO 11N76W TO 12N74W TO 12N70W TO 13N71W...INCLUDING THE GULF OF VENEZUELA... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WITHIN 12N74W TO 12N75W TO 12N76W TO 11N75W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.