000 FZNT02 KNHC 200354 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC FRI OCT 20 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 FRI OCT 20. 24 HOUR FORECAST VALID 0000 UTC SAT OCT 21. 48 HOUR FORECAST VALID 0000 UTC SUN OCT 22. .WARNINGS. ...ATLC AND CARIBBEAN HURRICANE WARNING... .TROPICAL STORM TAMMY NEAR 13.8N 57.1W 1001 MB AT 0300 UTC OCT 20 MOVING WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE QUADRANT...100 NM SE QUADRANT...0 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE...150 NM SE QUADRANT AND 90 NM SW QUADRANT WITH SEAS TO 22 FT. ELSEWHERE...WITHIN 22N53W TO 24N57W TO 21N64W TO 12N59W TO 11N55W TO 15N49W TO 22N53W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST TROPICAL STORM TAMMY NEAR 15.3N 59.9W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...110 NM SE QUADRANT...30 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N SEMICIRCLE...240 NM SE QUADRANT...AND 120 NM SW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE...WITHIN 19N58W TO 20N59W TO 19N62W TO 17N62W TO 14N59W TO 15N57W TO 19N58W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 22N56W TO 25N59W TO 24N66W TO 14N61W TO 14N57W TO 18N55W TO 22N56W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .36 HOUR FORECAST HURRICANE TAMMY NEAR 16.6N 61.3W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINS WITHIN 100 NM NE QUADRANT...110 NM SE QUADRANT...30 NM SW QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N SEMICIRCLE...240 NM SE QUADRANT...AND 120 NM SW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE...WITHIN 20N59W TO 21N61W TO 20N63W TO 17N62W TO 15N60W TO 17N59W TO 20N59W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 29N62W TO 26N68W TO 23N67W TO 15N61W TO 15N58W TO 22N56W TO 29N62W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE TAMMY NEAR 18.0N 62.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E SEMICIRCLE...30 NM SW QUADRANT AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM N SEMICIRCLE...240 NM SE QUADRANT...AND 120 NM SW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE...WITHIN 20N60W TO 22N62W TO 20N63W TO 17N62W TO 17N61W TO 18N59W TO 20N60W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 23N57W TO 25N60W TO 25N65W TO 20N66W TO 17N61W TO 17N59W TO 23N57W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE TAMMY NEAR 21.5N 63.0W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE TAMMY NEAR 24.0N 62.0W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. .120 HOUR FORECAST HURRICANE TAMMY NEAR 28.0N 57.5W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .ATLC WITHIN 24N62W TO 25N63W TO 25N64W TO 23N65W TO 22N64W TO 23N63W TO 24N62W SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST CONDITIONS MERGED WITH HURRICANE WARNING AREA ABOVE. .CARIBBEAN WITHIN 12N70W TO 12N71W TO 12N72W TO 12N73W TO 11N71W TO 12N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .09 HOUR FORECAST CONDITIONS IMPROVE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER KONARIK. NATIONAL HURRICANE CENTER.