187
FZNT02 KNHC 250346
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED SEP 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED SEP 25.
24 HOUR FORECAST VALID 0000 UTC THU SEP 26.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 27.

.WARNINGS.

...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM HELENE NEAR 19.9N 85.5W 991 MB AT 0300 UTC SEP
25 MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 30
NM W SEMICIRCLE...120 NM NE QUADRANT AND 150 NM SE QUADRANT WITH
SEAS TO 20 FT. ELSEWHERE...WITHIN 22N80W TO 24N84W TO 21N87W TO
21N83W TO 16N82W TO 18N80W TO 22N80W...INCLUDING STRAITS OF
FLORIDA AND IN YUCATAN CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 12
FT.
.12 HOUR FORECAST HURRICANE HELENE NEAR 21.1N 86.3W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 210 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 180 NM NE QUADRANT...210 NM SE QUADRANT...60 NM SW
QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 24 FT.
ELSEWHERE...WITHIN 23N82W TO 27N83W TO 23N89W TO 19N87W TO 16N82W
TO 19N80W TO 23N82W...INCLUDING STRAITS OF FLORIDA...WINDS 20 TO
33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 22.7N 86.4W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS AND
SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...250 NM SE
QUADRANT...80 NM SW QUADRANT...AND 100 NM NW QUADRANT WITH SEAS
TO 26 FT. ELSEWHERE...WITHIN 25N80W TO 29N83W TO 26N90W TO 22N91W
TO 19N86W TO 19N81W TO 25N80W...INCLUDING STRAITS OF
FLORIDA...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 29.5N 84.2W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS
AND SEAS 12 FT OR GREATER WITHIN 210 NM NE QUADRANT...240 NM SE
QUADRANT...140 NM SW QUADRANT...AND 100 NM NW QUADRANT WITH SEAS
TO 28 FT. ELSEWHERE...WITHIN 31N78W TO 27N86W TO 30N86W TO 27N96W
TO 23N92W TO 21N82W TO 31N78W...INCLUDING STRAITS OF FLORIDA AND
IN YUCATAN CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 12 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 LOW PRES NEAR 15N35W 1008 MB. WITHIN
20N35W TO 18N36W TO 17N36W TO 16N36W TO 16N35W TO 20N35W NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17N40W 1007 MB. WITHIN 20N35W TO 21N38W TO 20N41W TO 17N42W TO
16N39W TO 17N36W TO 20N35W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

.ATLC 33 HOUR FORECAST WITHIN 31N62W TO 31N63.5W TO 30.5N63.5W
TO 31N62W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.