291
FZNT01 KWBC 242148
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE SEP 24 2024

CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

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

FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC SEP 24.
24 HOUR FORECAST VALID 1800 UTC SEP 25.
48 HOUR FORECAST VALID 1800 UTC SEP 26.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 39N58W 1004 MB DRIFTING SE. WITHIN 180
NM N OF A FRONT FROM 38N61W TO THE LOW TO 40N49W WINDS 30 TO 45
KT. SEAS 10 TO 20 FT...HIGHEST NEAR 40N59W. ELSEWHERE WITHIN 360
NM NW AND N OF FRONT FROM 35N68W TO 38N63W TO THE LOW TO 39N46W
AND FROM 45N TO 49N BETWEEN 50W AND 54W WINDS 20 TO 30 KT. SEAS 8
TO 12 FT.
.24 HOUR FORECAST LOW 37N57W 1003 MB. WITHIN 120 NM NW AND N OF A
LINE FROM 38N59W TO 40N56W TO 40N52W WINDS 30 TO 40 KT. SEAS 11
TO 18 FT. ELSEWHERE WITHIN 540 NM NE...780 NM E...120 NM SE...300
NM SW AND 480 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT
IN MIXED SWELL.
.48 HOUR FORECAST LOW 36N53W 1003 MB. WITHIN 360 NM W AND NW OF A
LINE FROM 40N52W TO 43N46W WINDS 25 TO 35 KT. SEAS 8 TO 15
FT...HIGHEST NEAR 40N56W. ELSEWHERE WITHIN 180 NM N AND NE OF A
LINE FROM 43N46W TO 40N35W AND WITHIN 300 NM FROM LOW EXCEPT NE
QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 51N38W 992 MB MOVING E 35 KT. WITHIN 300 NM W SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 10 TO 18 FT. ELSEWHERE FROM 43N TO 59N E
OF 50W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW WELL E OF THE AREA 51N14W 988 MB. FROM 42N
TO 54N E OF 48W WINDS LESS THAN 25 KT. SEAS 8 TO 12 FT IN N
SWELL.
.48 HOUR FORECAST LOW AND CONDITIONS E OF THE AREA.

.SYNOPSIS AND FORECAST.
.FROM 33N TO 39N E OF 39W AREA OF SW WINDS TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST N OF 65N E OF 56W TO THE W COAST OF GREENLAND
AREA OF S WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST FROM 58N TO 60N BETWEEN 40W AND 45W AREA OF SW
TO SW WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST NEW LOW 60N38W 1011 MB. FROM 54N TO 58N E OF
43W AND WITHIN 120 NM N AND NE OF A LINE FROM 58N43W TO 61N51W TO
THE W COAST OF GREENLAND AREA OF W TO NW WINDS 20 TO 30 KT. SEAS
TO 10 FT.

.FORECASTER FUTTERMAN. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

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.

$$