FZNT01 KWBC 280938
HSFAT1 1030
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED AUG 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 OFFSHORE AND HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0600 UTC AUG 28.
24 HOUR FORECAST VALID 0600 UTC AUG 29.
48 HOUR FORECAST VALID 0600 UTC AUG 30.
.WARNINGS.
…GALE WARNING…
.COMPLEX LOW WITH MAIN CENTER 63N59W 988 MB MOVING SE 10 KT.
BETWEEN 120 NM AND 180 NM NW QUADRANT…AND FROM 60N TO 65N
BETWEEN W GREENLAND COAST AND 55W WINDS 30 TO 45 KT. SEAS 8 TO 14
FT…HIGHEST NEAR 65N63W. ELSEWHERE NW OF A LINE FROM 59N62W TO
66N54W…AND WITHIN 300 NM E OF A LINE FROM 67N58W TO 58N51W TO
47N68W…INCLUDING THE GULF OF SAINT LAWRENCE… WINDS 20 TO 30
KT. SEAS TO 9 FT.
.24 HOUR FORECAST COMBINED LOW 60N51W 987 MB. N OF 54N BETWEEN
52W AND 60W WINDS 30 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE N OF
51N W OF 50W…AND WITHIN 300 NM E OF A LINE TO EXTEND FROM
62N50W TO 59N45W TO 48N53W…INCLUDING THE GULF OF SAINT
LAWRENCE…WINDS 20 TO 30 KT. SEAS TO 10 FT IN A MIXED SWELL.
.48 HOUR FORECAST LOW 57N44W 996 MB. FROM 50N TO 62N BETWEEN 44W
AND 55W WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.
…GALE WARNING…
.30 HOUR FORECAST NEW LOW 59N44W 993 MB. WITHIN 240 NM NE
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE N OF 53N E
OF 43W…AND FROM 46N TO 53N BETWEEN 40W AND 50W WINDS 20 TO 30
KT. SEAS TO 10 FT…HIGHEST NEAR 53N44W.
.48 HOUR FORECAST LOW 61N39W 989 MB. N OF 52N E OF 39W WINDS 20
TO 30 KT. SEAS TO 9 FT.
.SYNOPSIS AND FORECAST.
.LOW 50N45W 1008 MB MOVING NE 20 KT. WITHIN 420 NM SE SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW E OF AREA 52N32W 1007 MB. WITHIN 300 NM S
SEMICIRCLE…AND FROM 36N TO 46N E OF 46W WINDS 20 TO 30 KT. SEAS
TO 10 FT…HIGHEST NEAR 49N35W.
.48 HOUR FORECAST LOW E OF AREA AND ASSOCIATED CONDITIONS
DESCRIBED BY LOW 45N44W BELOW.
.24 HOUR FORECAST NEW LOW 44N59W 1008 MB. FROM 39N TO 52N BETWEEN
55W AND 68W…INCLUDING THE GULF OF SAINT LAWRENCE…WINDS 20 TO
30 KT. SEAS TO 8 FT…EXCEPT WITHIN THE GULF OF SAINT LAWRENCE
SEAS TO 9 FT.
.48 HOUR FORECAST LOW 45N44W 1004 MB. WITHIN 540 NM W SEMICIRCLE
AND 420 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 39N TO 42N W OF 69W AREA OF E WINDS TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.48 HOUR FORECAST NEW LOW 64N59W 992 MB. FROM 54N TO 64N W OF 53W
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM OF
48N45W…WITHIN 180 NM SW OF A LINE FROM 57N42W TO 65N60W…AND N
OF 59N W OF 50W.
.24 HOUR FORECAST DENSE FOG FROM 46N TO 50N BETWEEN 45W AND
50W…FROM 51N TO 54N E OF 39W…N OF 54N BETWEEN 42W AND
49W…