FZNT01 KWBC 290344
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN SEP 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
[email protected](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 0000 UTC SEP 29.
24 HOUR FORECAST VALID 0000 UTC SEP 30.
48 HOUR FORECAST VALID 0000 UTC OCT 01.
.WARNINGS.
…HURRICANE WARNING…
.HURRICANE ISAAC NEAR 42.1N 37.6W 971 MB AT 0300 UTC SEP 29
MOVING NE OR 040 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE
QUADRANT…130 NM SE QUADRANT…120 NM SW QUADRANT…AND 160 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE
QUADRANT…360 NM SE QUADRANT…330 NM SW QUADRANT…AND 270 NM
NW QUADRANT WITH SEAS TO 32 FT. ELSEWHERE S OF 47N E OF 46W WINDS
20 TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE ISAAC NEAR 44.2N 33.7W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 160 NM NE QUADRANT…130 NM SE QUADRANT…120 NM SW
QUADRANT…AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
240 NM NE…480 NM SE…300 NM SW…480 NM NW QUADRANT WITH SEAS
TO 27 FT. ELSEWHERE S OF 48N E OF 43W WINDS 20 TO 33 KT. SEAS TO
12 FT.
.36 HOUR FORECAST POST-TROPICAL CYCLONE ISAAC NEAR 45.4N 30.6W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE ISAAC NEAR 47.1N 28.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM
FORCE WINDS WITHIN 130 NM NE QUADRANT…70 NM SE QUADRANT…30
NM SW QUADRANT…AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 180 NM NE QUADRANT…300 NM SE AND 300 NM W SEMICIRCLE
WITH SEAS TO 20 FT. ELSEWHERE FROM 33N TO 51N E OF 40W WINDS 20
TO 33 KT. SEAS TO 12 FT.
…GALE WARNING…
.LOW 42N55W 1001 MB MOVING SE 10 KT. BETWEEN 90 NM AND 300 NM W
AND 120 NM AND 300 NM N QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14
FT. ELSEWHERE FROM 35N TO 48N BETWEEN 46W AND 62W WINDS 20 TO 30
KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 40N51W 999 MB. S OF 48N BETWEEN 43W AND
60W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW 42N43W 998 MB. S OF 40N BETWEEN 40W AND 45W
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 40N TO 52N
BETWEEN 40W AND 50W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT IN MIXED
SWELL.
…GALE WARNING…
.N OF 62N E OF 60W TO THE GREENLAND COAST AREA OF SE TO S WINDS
20 TO 30 KT. SEAS TO 8 FT.
.12 HOUR FORECAST NEW LOW 66N62W 993 MB. WITHIN 120 NM OF W
GREENLAND COAST N OF 60N WINDS 25 TO 35 KT. SEAS 8 TO 12
FT…HIGHEST NEAR 67N.
.24 HOUR FORECAST LOW 65N56W 996 MB. WITHIN 90 NM OF W GREENLAND
COAST N OF 61N WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 63N TO 65N W OF 56W AREA
OF W WINDS LESS THAN 25 KT. SEAS TO 8 FT.
.SYNOPSIS AND FORECAST.
.LOW E OF AREA 64N30W 1006 MB MOVING SE 20 KT THEN TURNING NE
AFTER 12 HOURS. N OF 62N E OF 37W WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
.WITHIN 120 NM N OF A FRONT FROM 39N74W TO 38N69W AREA OF E WINDS
TO 25 KT. SEAS TO 8 FT.
24 HOUR FORECAST CONDITIONS DISSIPATED.
.48 HOUR FORECAST FROM 44N TO 51N BETWEEN 57W AND 64W…INCLUDING
THE E GULF OF SAINT LAWRENCE AND FROM 49N TO 53N BETWEEN 53W AND
56W AREA OF N TO NE WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST WITHIN 120 NM N AND NE OF A LINE FROM 38N73W TO
36N68W AREA OF E WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN AN AREA BOUNDED BY A LINE FROM 60N43W TO
59N35W TO 64N35W TO 60N43W AREA OF SW WINDS 20 TO 30 KT. SEAS TO
10 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N FROM 62N TO 64N
BETWEEN 52W AND 55W AND N OF 64N W OF GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM E OF A LINE FROM 64N55W
TO 62N53W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.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 0000 UTC SUN SEP 29.
24 HOUR FORECAST VALID 0000 UTC MON SEP 30.
48 HOUR FORECAST VALID 0000 UTC TUE OCT 1.
.WARNINGS.
…ATLANTIC TROPICAL STORM WARNING…
.TROPICAL STORM JOYCE NEAR 20.9N 47.5W 1004 MB AT 0300 UTC SEP
29 MOVING NW OR 305 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE
QUADRANT…20 NM SE QUADRANT…0 NM SW QUADRANT…AND 90 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE QUADRANT…30 NM
SE QUADRANT…45 NM SW QUADRANT…AND 75 NM NW QUADRANT WITH
SEAS TO 15 FT. ELSEWHERE WITHIN 21N46W TO 22N48W TO 20N49W TO
19N48W TO 19N47W TO 20N46W TO 21N46W WINDS 20 TO 33 KT. SEAS 10
TO 12 FT. REMAINDER OF AREA WITHIN 24N43W TO 25N48W TO 22N51W TO
19N50W TO 18N49W TO 20N43W TO 24N43W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM JOYCE NEAR 22.4N 49.2W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM NE QUADRANT…20 NM SE QUADRANT…0 NM SW
QUADRANT…AND 30 NM NW QUADRANT. ELSEWHERE WITHIN 23N48W TO
23N49W TO 23N50W TO 22N50W TO 21N49W TO 22N48W TO 23N48W WINDS 20
TO 33 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA WITHIN 25N48W TO
25N51W TO 23N53W TO 22N51W TO 23N49W TO 22N48W TO 25N48W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL DEPRESSION JOYCE NEAR 23.1N 49.3W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 HOUR FORECAST TROPICAL DEPRESSION JOYCE NEAR 23.8N 49.2W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 25N48W TO
25N49W TO 24N50W TO 23N50W TO 22N49W TO 23N48W TO 25N48W WINDS 20
TO 30 KT. SEAS 8 FT. ELSEWHERE WITHIN 25N42W TO 27N45W TO 25N48W
TO 23N48W TO 24N46W TO 22N42W TO 25N42W WINDS 20 KT OR LESS.
SEAS 8 FT IN MIXED 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 WITHIN 23N35W TO 21N38W TO 18N39W TO 15N35W TO 23N35W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.24 HOUR FORECAST WITHIN 22N35W TO 22N40W TO 21N41W TO 17N39W TO
15N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.48 HOUR FORECAST WITHIN 18.5N35W TO 18.5N35.5W TO 18N36W TO
17N36W TO 16N35W TO 18.5N35W E WINDS 20 TO 25 KT. SEAS 8 TO 10
FT. ELSEWHERE WITHIN 21N35W TO 22N40W TO 18N42W TO 15N39W TO
16N35W TO 18N36W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT
IN E SWELL.
.ATLC 30 HOUR FORECAST WITHIN 31N43W TO 31N47W TO 30N46W TO
30.5N43.5W TO 31N43W S TO SW WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST WITHIN 31N41W TO 31N60W TO 29N56W TO 29N50W TO
28N45W TO 31N41W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.
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UUID 44D2990C-7E15-11EF-BB72-0AFB0B270000 TX 1
