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000
FZNT01 KWBC 211620
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 21.
24 HOUR FORECAST VALID 1200 UTC APR 22.
48 HOUR FORECAST VALID 1200 UTC APR 23.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 64N63W 985 MB MOVING NE 20 KT.
WITHIN 90 NM W OF THE GREENLAND COAST WINDS 35 TO 50 KT. SEAS 12
TO 21 FT. ELSEWHERE N OF 50N W OF 45W WINDS 25 TO 35 KT. SEAS 8
TO 15 FT.
.24 HOUR FORECAST LOW N OF AREA. N OF 37N BETWEEN 46W AND 56W
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED

...GALE WARNING...
.LOW INLAND NEAR 50N60W 1003 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 DISSIPATED. CONDITIONS DESCRIBED IN STORM
WARNING ABOVE.

...GALE WARNING...
.LOW 51N35W 1002 MB MOVING NW 10 KT. WITHIN 300 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 12 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...
.LOW 31N35W 1009 MB MOVING E 10 KT. WITHIN 120 NM OF LOW WINDS
TO 25 KT. SEAS TO 9 FT.
.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 32N35W 1006 MB. WITHIN 360 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.LOW 33N77W 1011 MB MOVING NE 15 KT.WITHIN 120 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 37N62W 1006 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 34N67W 1000 MB. WITHIN 300 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 300 NM E
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.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.

.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 MUSONDA. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1200 UTC SUN APR 21.
24 HOUR FORECAST VALID 1200 UTC MON APR 22.
48 HOUR FORECAST VALID 1200 UTC TUE APR 23.

.WARNINGS.

...GALE WARNING...
.ATLC 12 HOUR FORECAST WITHIN 31N74W TO 31N80W TO 30N80W TO
29N78W TO 29N75W TO 31N74W SW TO W WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N75W TO 28N81W. WITHIN
31N72W TO 31N76W TO 29N76W TO 29N73W TO 31N72W SW WINDS 20 TO 25
KT. SEAS 8 FT.
.33 HOUR FORECAST COLD FRONT FROM 31N74W TO 27N80W. WITHIN
31N74W TO 31N76.5W TO 30.5N76.5W TO 30.5N74.5W TO 31N74W NW TO N
WINDS 30 TO 40 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 31N70W TO
31N81W TO 29N81W TO 27N79W TO 29N73W TO 31N70W WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT.
.39 HOUR FORECAST COLD FRONT FROM 31N72W TO 26N80W. WITHIN
31N69W TO 31N79W TO 27N79W TO 27N78W TO 31N69W N WINDS 20 TO 30
KT...EXCEPT SW AHEAD OF THE FRONT. SEAS 10 TO 14 FT. ELSEWHERE
WITHIN 31N69W TO 31N81W TO 28N80W TO 28N77W TO 31N69W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN NE SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N69W TO 22N79W. WITHIN
31N66W TO 31N69W TO 30N69W TO 29N67W TO 30N67W TO 31N66W SW TO W
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 31N66W TO
30N81W TO 26N80W TO 27N74W TO 31N66W WINDS 20 KT OR LESS. SEAS 8
TO 12 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 28N40W 1012 MB WITH A COLD FRONT FROM 28N40W
TO 22N46W. WITHIN 31N35W TO 31N39W TO 27N38W TO 28N35W TO 31N35W
SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES NE OF AREA. COLD FRONT FROM 24N35W
19N45W. WITHIN 31N35W TO 31N36W TO 30N35W TO 31N35W NW TO N WINDS
20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 31N35W TO 31N40W
TO 30N40W TO 28N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 FT IN
NW TO N SWELL.
.48 HOUR FORECAST LOW PRES E OF AREA. WITHIN 31N35W TO 31N41W TO
29N41W TO 27N40W TO 27N36W TO 31N35W N WINDS 20 TO 30 KT. SEAS
11 TO 15 FT. ELSEWHERE WITHIN 31N35W TO 31N44W TO 27N43W TO
25N40W TO 25N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT
IN N SWELL.

.CARIBBEAN WITHIN 13N72W TO 13N73W TO 11N76W TO 11N75W TO 12N72W
TO 13N72W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO COLD FRONT FROM 31N85W TO 26N97W. WITHIN 28N92W
TO 30N94W TO 29N97W TO 22N98W TO 19N95W TO 24N95W TO 28N92W NE
WINDS 20 TO 25 KT. SEAS BUILDING TO 10 FT
.24 HOUR FORECAST COLD FRONT FROM 26N81W TO 19N96W. WITHIN
25N94W TO 26N97W TO 22N98W TO 19N95W TO 21N95W TO 22N94W TO
25N94W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.42 HOUR FORECAST 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 DELGADO. NATIONAL HURRICANE CENTER.