505
FZNT02 KNHC 270934
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI SEP 27.
24 HOUR FORECAST VALID 0600 UTC SAT SEP 28.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 29.

.WARNINGS.

...GULF OF MEXICO AND ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM HELENE NEAR 32.8N 83.0W 968 MB AT 0900 UTC SEP
27 MOVING N OR 360 DEG AT 26 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 240 NM E
SEMICIRCLE...100 NM SW QUADRANT AND 60 NM NW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 240 NM NE QUADRANT...380 NM SE QUADRANT...390
NM SW QUADRANT...AND 0 NM NW QUADRANT WITH SEAS TO 17 FT.
ELSEWHERE WITHIN 31N74W TO 28N80W TO 31N81W TO 30N88W TO 24N84W
TO 25N76W TO 31N74W...INCLUDING STRAITS OF FLORIDA AND ATLANTIC
EXPOSURES...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA
WITHIN 27N87W TO 30N89W TO 30N92W TO 27N93W TO 22N87W TO 24N82W
TO 27N87W...INCLUDING STRAITS OF FLORIDA...WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED SWELL.
.12 HOUR FORECAST POST-TROPICAL HELENE NEAR 36.4N 84.5W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 36.9N
87.3W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 31N73W
TO 31N79W TO 29N78W TO 29N77W TO 30N75W TO 31N73W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN S TO SW SWELL.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 36.7N
87.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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.

...ATLANTIC GALE WARNING...
.LOW PRES NEAR 17N42W 1007 MB. WITHIN 18N39W TO 19N42W TO 18N43W
TO 16N43W TO 16N41W TO 17N40W TO 18N39W WINDS 20 TO 30 KT. SEAS
8 TO 11 FT. ELSEWHERE WITHIN 22N35W TO 23N40W TO 21N43W TO 18N44W
TO 16N40W TO 17N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL.
.12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
18N44W 1007 MB. WITHIN 18.5N43.5W TO 19N43.5W TO 19N44W TO
18.5N44.5W TO 18N44W TO 18N43.5W TO 18.5N43.5W WINDS 30 TO 35
KT. SEAS 12 TO 13 FT. ELSEWHERE WITHIN 20N41W TO 20N42W TO
20N44W TO 18N45W TO 17N43W TO 18N42W TO 20N41W WINDS 20 TO 30
KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 24N39W TO 22N46W
TO 18N46W TO 19N41W TO 17N42W TO 18N35W TO 24N39W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19N46W 1004 MB. WITHIN 20N45W TO 20N46W TO 19N46W TO 19N45W TO
20N45W WINDS 30 TO 40 KT. SEAS 12 TO 14 FT. ELSEWHERE WITHIN
21N42W TO 22N45W TO 20N47W TO 17N46W TO 17N45W TO 18N43W TO
21N42W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA
WITHIN 21N39W TO 24N43W TO 22N48W TO 18N47W TO 17N42W TO 19N39W
TO 21N39W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
20N49W 1006 MB. WITHIN 21N48W TO 21N49W TO 20N50W TO 20N48W TO
21N48W WINDS 30 TO 40 KT. SEAS 10 TO 12 FT. ELSEWHERE WITHIN
21N46W TO 22N47W TO 21N49W TO 21N48W TO 20N48W TO 20N46W TO
21N46W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA
WITHIN 24N45W TO 22N47W TO 24N49W TO 21N52W TO 18N49W TO 20N42W
TO 24N45W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.SYNOPSIS AND FORECAST.

.ATLC 24 HOUR FORECAST WITHIN 20N35W TO 20N36W TO 19N36W TO
18N36W TO 17N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 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 AREINHART. NATIONAL HURRICANE CENTER.