334
FZNT02 KNHC 242109
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE SEP 24.
24 HOUR FORECAST VALID 1800 UTC WED SEP 25.
48 HOUR FORECAST VALID 1800 UTC THU SEP 26.

.WARNINGS.

...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM HELENE NEAR 19.7N 84.7W 995 MB AT 2100 UTC SEP
24 MOVING WNW OR 300 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 0
NM W SEMICIRCLE...120 NM NE QUADRANT AND 150 NM SE QUADRANT WITH
SEAS TO 16 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 240 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 21.7N 86.6W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 240 NM NE QUADRANT...270 NM SE QUADRANT...60 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
180 NM N SEMICIRCLE...210 NM SE QUADRANT AND 30 NM SW QUADRANT
OF CENTER WITH SEAS TO 26 FT. ELSEWHERE N OF 18N W OF 79W...
INCLUDING THE YUCATAN CHANNEL...AND S OF 25N BETWEEN 80W AND
90W...INCLUDING THE STRAITS OF FLORIDA...WINDS 20 TO 33 KT. SEAS
8 TO 12 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 27.0N 84.9W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 210 NM NE QUADRANT...240 NM SE QUADRANT...140 NM SW
QUADRANT...AND 100 NM NW QUADRANT. 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 30N
BETWEEN 90W AND 94W 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 65W AND 71W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN N TO NE SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 30 HOUR FORECAST NEW LOW PRES...POSSIBLE TROPICAL
CYCLONE...NEAR 16N36W 1008 MB. FROM 16N TO 19N E OF 36W E WINDS
20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17N38W 1007 MB. WITHIN 60 NM N SEMICIRCLE OF CENTER WINDS 25 TO
30 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 16N TO 20N E OF 40W E
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.ATLC 36 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
30 KT. SEAS 8 TO 9 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.