000 FZNT02 KNHC 190158 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC TUE OCT 19 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC TUE OCT 19. 24 HOUR FORECAST VALID 0000 UTC WED OCT 20. 48 HOUR FORECAST VALID 0000 UTC THU OCT 21. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC 12 HOUR FORECAST WITHIN 30N35W TO 30N36W TO 30N38W TO 31N41W TO 31N35W TO 30N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .24 HOUR FORECAST WITHIN 29N35W TO 29N35.5W TO 30N35.5W TO 31N35.5W TO 31N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC 30 HOUR FORECAST WITHIN 30.5N61W TO 30N62W TO 31N64W TO 31N60W TO 30.5N61W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .48 HOUR FORECAST WITHIN 30N52W TO 30N57W TO 30N59W TO 31N61W TO 31N51W TO 30N52W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .ATLC 30 HOUR FORECAST WITHIN 11N47W TO 09N47W TO 10N49W TO 13N50W TO 14N47W TO 11N47W WINDS 20 KT OR LESS. SEAS 8 FT IN NE AND N SWELL. .48 HOUR FORECAST WITHIN 10N50W TO 09N53W TO 10N54W TO 12N54W TO 12N50W TO 10N50W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 08N48W TO 08N55W TO 12N56W TO 15N47W TO 14N42W TO 08N48W WINDS 20 KT OR LESS. SEAS 8 FT IN NE AND N SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER AL. NATIONAL HURRICANE CENTER.