FZNT01 KWBC 030400
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU OCT 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 03.
24 HOUR FORECAST VALID 0000 UTC OCT 04.
48 HOUR FORECAST VALID 0000 UTC OCT 05.
.WARNINGS.
…GALE WARNING…
.LOW 47N43W 988 MB MOVING NE 05 KT. BETWEEN 60 NM AND 180 NM
SE…90 NM AND 300 NM W…180 NM AND 360 NM NW AND 180 NM AND 420
NM N QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 18 FT…HIGHEST NEAR
50N47W. ELSEWHERE WITHIN 540 NM NE…SE…480 NM SW AND 420 NM NW
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW 48N41W 993 MB. WITHIN 180 NM N OF A LINE
FROM 50N44W TO 51N38W TO 52N35W AND WITHIN 240 NM S OF A LINE
FROM 47N36W TO 47N43W TO 47N47W WINDS 30 TO 45 KT. SEAS TO 10 TO
20 FT. ELSEWHERE FROM 40N TO 55N E OF 48W WINDS 20 TO 30 KT. SEAS
8 TO 15 FT IN MIXED SWELL.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER E OF THE AREA
50N26W 990 MB. FROM 38N TO 50N E OF 47W AND FROM 50N TO 55N E OF
41W WINDS 20 TO 30 KT. SEAS 8 TO 16 FT…HIGHEST NEAR 44N35W.
…GALE WARNING…
.LOW 34N65W 1000 MB MOVING SE 10 KT. WITHIN 180 NM NW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 360 NM
NE…300 NM SE…180 NM S QUADRANTS AND 420 NM NW SEMICIRCLE
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 32N63W 1000 MB. WITHIN 240 NM NW SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE WITHIN 480 NM
NE…360 NM W AND 420 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8
TO 13 FT.
.48 HOUR FORECAST LOW 31N64W 1006 MB. WITHIN 720 NM NE….360 NM
W…420 NM NW AND 480 NM N QUADRANTS WINDS 20 TO 30 KT. 8 TO 12
FT.
…GALE WARNING…
FROM 65N E OF 62W TO THE W COAST OF GREENLAND WINDS 25 TO 35 KT.
SEAS 8 TO 12 FT. ELSEWHERE FROM 55N TO 65N W OF 53W WINDS 20 TO
30 KT. SEAS TO 10
