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000
FZNT01 KWBC 210948
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN APR 21 2024

CCODE/1:31:04:01:00/AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC APR 21.
24 HOUR FORECAST VALID 0600 UTC APR 22.
48 HOUR FORECAST VALID 0600 UTC APR 23.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 64N62W 979 MB MOVING NE 20 KT.
WITHIN 120 NM W OF THE GREENLAND COAST WINDS 35 TO 50 KT. SEAS 12
TO 20 FT. ELSEWHERE N OF 50N W OF 45W WINDS 25 TO 35 KT. SEAS 8
TO 14 FT.
.24 HOUR FORECAST LOW N OF AREA. N OF 57N BETWEEN 46W AND 56W
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED

...GALE WARNING...
.LOW E OF AREA 44N34W 1006 MB MOVING NE 15 KT. WITHIN 360 NM W
AND NW AND 300 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

 ...GALE WARNING...
.LOW 45N60W 1006 MB MOVING N 30 KT. N OF 38N BETWEEN 54W AND 63W
WINDS 25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 58N58W 1003 MB. CONDITIONS DESCRIBED IN
STORM WARNING ABOVE.
.36 HOUR FORECAST LOW DISSIPATED.

...GALE WARNING...
.LOW E OF AREA 51N32W 1002 MB MOVING W 10 KT. WITHIN 360 NM NW
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 12 FT.
.12 HOUR FORECAST LOW 52N36W 1003 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 52N38W 1008 MB. WITHIN 180 NM OF CENTER
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST LOW E OF AREA 32N32W 1002 MB. WITHIN 300 NM W
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW E OF AREA 32N33W 1006 MB. WITHIN 360 NM W
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 37N66W 1004 MB. FROM 31N TO 37N W OF 60W
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 48N43W 1010 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN
240 NM E AND SE OF A LINE FROM LOW CENTER TO 42N50W TO 36N61W
WINDS 20 TO 30 KT. SEAS TO 10 FT.

...GALE WARNING...
.36 HOUR FORECAST LOW INLAND 54N64W 989 MB. WITHIN 420 NM S
QUADRANT AND WITHIN 150 NM S AND SW OF THE GREENLAND COAST S OF
61N WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST LOW 56N60W 986 MB. WITHIN 360 NM E AND 540 NM S
QUADRANTS AND WITHIN 180 NM S AND SW OF THE GREENLAND COAST S OF
61N WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW 34N60W 1005 MB. WITHIN 300 NM NW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 300 NM SE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.N OF 62N E OF 38W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 60N BETWEEN 48W
AND 62W AND N OF 40N BETWEEN 56W AND 68W.
.24 HOUR FORECAST DENSE FOG N OF 42N BETWEEN 48W AND 58W AND FROM
54N TO 60N E OF 42W.
.48 HOUR FORECAST DENSE FOG N OF 55N W OF 48W AND N OF 57N E OF
44W.

.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY FROM 47N TO
54N W OF 52W INCLUDING THE GULF OF SAINT LAWRENCE.

.FORECASTER ACHORN. 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 0600 UTC SUN APR 21.
24 HOUR FORECAST VALID 0600 UTC MON APR 22.
48 HOUR FORECAST VALID 0600 UTC TUE APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 27N44W 1012 MB. WITHIN 30N36W TO 31N36W TO
31N38W TO 29N39W TO 27N41W TO 26N41W TO 30N36W SW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES NE OF AREA NEAR 32.5N32.5W 1002 MB.
WITHIN 31N35W TO 31N37W TO 29N35W TO 31N35W NW TO N WINDS 20 TO
25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES E OF AREA NEAR 30.5N33W 1003 MB.
WITHIN 31N35W TO 31N40W TO 28N39W TO 28N37W TO 28N35W TO 31N35W N
WINDS 20 TO 30 KT. SEAS 10 TO 15 FT IN N TO NE SWELL. ELSEWHERE
WITHIN 31N40W TO 31N42W TO 29N42W TO 27N40W TO 27N35W TO 29N39W
TO 31N40W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.

.ATLC 18 HOUR FORECAST COLD FRONT FROM 31N78.5W TO 29N81W.
WITHIN 31N73.5W TO 31N79W TO 30.5N80.5W TO 30N80.5W TO 30N76W TO
30N75W TO 31N73.5W SW TO W WINDS 20 TO 25 KT...EXCEPT NW WINDS W
OF FRONT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N76W TO 28N80.5W. LITTLE
CHANGE.
.48 HOUR FORECAST COLD FRONT FROM 31N71W TO 27N77W TO 24N80W.
WITHIN 31N69W TO 31N81W TO 28N80W TO 27N78W TO 31N69W N WINDS 20
TO 25 KT...EXCEPT SW WINDS AHEAD OF FRONT. SEAS 8 TO 14 FT IN N
TO NE SWELL.

.CARIBBEAN WITHIN 12N74W TO 12N75W TO 11N76W TO 10N75W TO 11N75W
TO 11N74W TO 12N74W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 12N72W TO 12N75W TO 11N75W TO 11N73W TO
12N72W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.CARIBBEAN WITHIN 18N70W TO 18N73W TO 17N73W TO 17N72W TO 17N71W
TO 17N70W TO 18N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO COLD FRONT FROM 30.5N87W TO 29N94W TO 27N97W.
WITHIN 30N93W TO 30N94W TO 30N95W TO 29N96W TO 29N95W TO 30N93W N
TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 28N83W TO 22N96W TO 18N94W.
WITHIN 27N91W TO 29N90W TO 29N94W TO 25N97W TO 21N97W TO 23N95W
TO 27N91W N TO NE WINDS 20 TO 30 KT...EXCEPT NW TO N WINDS W OF
97W. SEAS 8 TO 11 FT S OF 27N.
.48 HOUR FORECAST WEAKENED COLD FRONT SE OF BASIN. CONDITIONS
IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.


.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

$$