FZNT01 KWBC 080418
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE OCT 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 08.
24 HOUR FORECAST VALID 0000 UTC OCT 09.
48 HOUR FORECAST VALID 0000 UTC OCT 10.
.WARNINGS.
…STORM WARNING…
.LOW 43N34W 964 MB JUST E OF THE AREA MOVING E 35 KT. FROM 40N TO
45N E OF 37W WINDS 45 TO 60 KT. SEAS 22 TO 41 FT. ELSEWHERE FROM
38N TO 50N E OF 39W WINDS 30 TO 45 KT. SEAS 15 TO 31 FT. ALSO
FROM 31N TO 56N E OF 45W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT IN
MIXED SWELL…HIGHEST BETWEEN 40N AND 47N.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
…GALE WARNING…
.LOW 41N50W 991 MB MOVING E 10 KT. WITHIN 180 NM S AND BETWEEN 60
NM AND 240 NM NW SEMICIRCLES WINDS 30 TO 45 KT. SEAS 12 TO 22 FT.
ELSEWHERE FROM 37N TO 47N BETWEEN 45W AND 59W WINDS 20 TO 30 KT.
SEAS 9 TO 16 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW 42N43W 999 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 30 TO 40 KT. SEAS 11 TO 19 FT. ELSEWHERE WITHIN 420 NM
NE…240 NM SE…300 NM SW AND 240 NM NW QUADRANTS WINDS 20 TO 30
KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW 41N36W 1005 MB. FROM 35N TO 47N E OF 44W
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN MIXED SWELL
…GALE WARNING…
.24 HOUR FORECAST FROM 44N TO 50N BETWEEN 60W AND 65W…INCLUDING
THE GULF OF SAINT LAWRENCE WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST NEW LOW 49N63W 1006 MB. WITHIN 360 NM SE AND
180 M NW…INCLUDING THE GULF OF SAINT LAWRENCE WINDS 25 TO 40
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 47N58W 1008 MB.
