000 FZNT02 KNHC 210800 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC THU OCT 21 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC THU OCT 21. 24 HOUR FORECAST VALID 0600 UTC FRI OCT 22. 48 HOUR FORECAST VALID 0600 UTC SAT OCT 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 29N53W TO 29N55W TO 31N59W TO 31N51W TO 29N53W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .24 HOUR FORECAST WITHIN 29N35W TO 26N46W TO 26N54W TO 31N56W TO 31N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL. .48 HOUR FORECAST WITHIN 21N38W TO 19N53W TO 21N56W TO 31N45W TO 31N35W TO 21N38W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. .ATLC WITHIN 10N50W TO 07N55W TO 10N60W TO 12N60W TO 14N53W TO 10N50W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .24 HOUR FORECAST WITHIN 13N54W TO 11N58W TO 14N59W TO 15N56W TO 14N54W TO 13N54W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 09N45W TO 09N60W TO 15N60W TO 16N56W TO 12N44W TO 09N45W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .48 HOUR FORECAST WITHIN 11N51W TO 09N53W TO 11N57W TO 15N57W TO 12N54W TO 11N51W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 08N47W TO 06N53W TO 11N61W TO 16N60W TO 13N45W TO 08N47W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .CARIBBEAN 18 HOUR FORECAST WITHIN 11N69W TO 11N71W TO 11N73W TO 13N74W TO 13N70W TO 11N69W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WITHIN 12N69W TO 11N71W TO 12N73W TO 13N71W TO 13N69W TO 12N69W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WITHIN 12N69W TO 11N71W TO 12N73W TO 13N71W TO 13N69W TO 12N69W 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 AL. NATIONAL HURRICANE CENTER.