000 FZNT02 KNHC 271506 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC FRI SEP 27 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE) HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP SECURITE ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1200 UTC FRI SEP 27. 24 HOUR FORECAST VALID 1200 UTC SAT SEP 28. 48 HOUR FORECAST VALID 1200 UTC SUN SEP 29. .WARNINGS. ...ATLC TROPICAL STORM WARNING... .TROPICAL STORM JOYCE NEAR 18.1N 42.9W 1006 MB AT 1500 UTC SEP 27 MOVING NW OR 310 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER EXCEPT 60 NM NE QUADRANT. SEAS 12 FT WITHIN 30 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. ELSEWHERE WITHIN 19N39W TO 20N42W TO 19N44W TO 17N43W TO 17N41W TO 17N40W TO 19N39W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 22N35W TO 24N38W TO 24N42W TO 21N45W TO 16N43W TO 18N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL. .24 HOUR FORECAST TROPICAL STORM JOYCE NEAR 19.4N 46.1W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE QUADRANT...30 NM SE QUADRANT...20 NM SW QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM OF N SEMICIRCLE AND 60 NM S SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE WITHIN 21N43W TO 22N46W TO 20N48W TO 19N47W TO 19N44W TO 20N43W TO 21N43W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 24N43W TO 23N47W TO 20N49W TO 17N47W TO 18N42W TO 20N41W TO 24N43W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL. .48 HOUR FORECAST TROPICAL STORM JOYCE NEAR 20.7N 48.8W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE QUADRANT...40 NM SE QUADRANT...20 NM SW QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM N SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE WITHIN 22N46W TO 23N48W TO 22N50W TO 20N49W TO 21N46W TO 22N46W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 24N46W TO 24N51W TO 21N53W TO 19N52W TO 18N48W TO 21N44W TO 24N46W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL. ...ATLC TROPICAL STORM WARNING... .TROPICAL STORM HELENE NEAR 35.1N 83.8W 975 MB AT 1500 UTC SEP 27 MOVING N OR 350 DEG AT 28 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W SEMICIRCLE...120 NM NE QUADRANT AND 300 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM N SEMICIRCLE...420 NM SE QUADRANT AND 510 NM SW QUADRANT WITH SEAS TO 18 FT. OVER FORECAST WATERS WITHIN 31N75W TO 31N81W TO 26N80W TO 28N76W TO 31N75W S WINDS 20 TO 30 KT. SEAS 10 TO 12 FT IN SE TO S SWELL. WITHIN 29N83W TO 30N84W TO 30N86W TO 28N85W TO 28N83W TO 29N83W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 14 FT...HIGHEST N OF 27N E OF 83W. ELSEWHERE WITHIN 27N83W TO 30N87W TO 28N90W TO 24N86W TO 24N83W TO 25N81W TO 27N83W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO N SWELL. .12 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 37.3N 85.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. .24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 37.5N 86.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 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 24 HOUR FORECAST WITHIN 21N35W TO 21N36W TO 19N37W TO 17N36W TO 17N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. .48 HOUR FORECAST WITHIN 22N35W TO 22N41W TO 18N40W TO 16N38W TO 15N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER ERA. NATIONAL HURRICANE CENTER.