000
FZNT02 KNHC 241527
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE SEP 24.
24 HOUR FORECAST VALID 1200 UTC WED SEP 25.
48 HOUR FORECAST VALID 1200 UTC THU SEP 26.

.WARNINGS.

...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM HELENE NEAR 19.5N 84.3W 1000 MB AT 1500 UTC SEP 
24 MOVING NW OR 310 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 40 KT 
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W 
SEMICIRCLE...100 NM NE QUADRANT AND 120 NM SE QUADRANT. SEAS 12 
FT OR GREATER WITHIN 0 NM W SEMICIRCLE...90 NM NE QUADRANT AND 
120 NM SE QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 210 NM E 
SEMICIRCLE AND 120 NM W SEMICIRCLE OF CENTER WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT. 
.24 HOUR FORECAST HURRICANE HELENE NEAR 21.5N 86.3W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 210 NM E SEMICIRCLE...80 NM SW QUADRANT AND 100 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER...EXCEPT 
30 NM SW QUADRANT WITH SEAS TO 20 FT. ELSEWHERE N OF 18N AND W 
OF 80W...INCLUDING THE YUCATAN CHANNEL...AND S OF 25N BETWEEN 
82W AND 88W...INCLUDING THE STRAITS OF FLORIDA...WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 25.9N 85.4W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 210 NM E SEMICIRCLE AND 150 NM W SEMICIRCLE. SEAS 12 FT 
OR GREATER FROM 22N TO 29N BETWEEN 82W AND 88W WITH SEAS TO 30 
FT. ELSEWHERE FROM 21N TO 30N BETWEEN 80W AND 90W...INCLUDING 
THE STRAITS OF FLORIDA...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
FROM 22N TO 27N BETWEEN 90W AND 92W WINDS 20 KT OF LESS. SEAS 8 
TO 9 FT IN EASTERLY SWELL.

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 N OF 30N BETWEEN 66W AND 71W WINDS 20 KT OR LESS. SEAS 8 
TO 9 FT IN N SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 36 HOUR FORECAST NEW LOW PRES NEAR 15N36W 1008 MB. FROM 
15N TO 19N E OF 36W E WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 16N37W 1008 MB. WITHIN 60 NM NE 
QUADRANT OF CENTER WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE 
FROM 16N TO 20N E OF 38W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.ATLC 42 HOUR FORECAST N OF 27N W OF 78W SE WINDS 20 TO 25 KT. 
SEAS BUILDING TO 8 FT.
.48 HOUR FORECAST FROM 23N TO 30N W OF 78W SE TO S WINDS 20 TO 
25 KT. SEAS 8 FT N OF 27N.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.