000 FZNT02 KNHC 180357 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC TUE APR 18 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC TUE APR 18. 24 HOUR FORECAST VALID 0000 UTC WED APR 19. 48 HOUR FORECAST VALID 0000 UTC THU APR 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC COLD FRONT FROM 28N35W TO 28N39W THEN STATIONARY FRONT TO 29N48W. WITHIN 31N35W TO 31N44W TO 29N42W TO 28N40W TO 28N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL. .18 HOUR FORECAST FRONT DISSIPATED. CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC WITHIN 09N48W TO 09N52W TO 07N54W TO 06N52W TO 07N49W TO 07N43W TO 09N48W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .09 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN 48 HOUR FORECAST WITHIN 13N70W TO 13N73W TO 12N75W TO 10N76W TO 12N73W TO 10N72W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .GULF OF MEXICO 24 HOUR FORECAST WITHIN 28N92W TO 28N97W TO 26N96W TO 19N91W TO 22N88W TO 24N90W TO 28N92W...INCLUDING WITHIN 60 NM OF COAST OF CAMPECHE...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. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER HAGEN. NATIONAL HURRICANE CENTER.