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National Weather Service Marine Forecast FZNT01 KWBC

FZNT01 KWBC 170412
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT APR 17 2021

CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

METAREA IV BULLETIN WILL ONLY BE BROADCAST FROM THE INMARSAT
AOE SATELLITE. PLEASE ENSURE YOUR RECEIVER IS POINTED
CORRECTLY.

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 0000 UTC APR 17.
24 HOUR FORECAST VALID 0000 UTC APR 18.
48 HOUR FORECAST VALID 0000 UTC APR 19.

.WARNINGS.

HURRICANE FORCE WIND WARNING

.LOW 63N38W 975 MB MOVING NE 10 KT. BETWEEN 120 NM AND 300 NM S
AND SW QUADRANTS WINDS 50 TO 65 KT. SEAS 14 TO 28 FT. ELSEWHERE
WITHIN 120 NM NW AND N QUADRANTS...AND BETWEEN 90 NM AND 360 NM S
AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 11 TO 22 FT. OTHERWISE N
OF 56N E OF 53W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW E OF AREA NEAR 64N32W 988 MB. FROM 56N TO
60N E OF 48W WINDS 30 TO 45 KT. SEAS 8 TO 20 FT...HIGHEST NEAR
59N36W. ELSEWHERE WITHIN 150 NM W QUADRANT WINDS 25 TO 40 KT.
SEAS 8 TO 14 FT. OTHERWISE N OF 53N E OF 47W WINDS TO 25 KT. SEAS
8 TO 14 FT IN NW SWELL.
.48 HOUR FORECAST LOW WELL NE OF AREA. NEW LOW TO FORM E OF AREA
NEAR 65N34W 1002 MB. WITHIN 240 NM SW QUADRANT AND FROM 57N TO
60N E OF 44W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

GALE WARNING

.COMPLEX LOW WITH MEAN CENTER 44N42W 1001 MB MOVING NE 25 KT.
FROM 35N TO 51N E OF 55W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
ELSEWHERE FROM 31N TO 35N E OF 55W WINDS TO 25 KT. SEAS 8 TO 14
FT IN W TO NW SWELL.
.24 HOUR FORECAST LOW MOVED E OF AREA. FROM 40N TO 51N E OF 40W
WINDS TO 25 KT. SEAS 8 TO 13 FT.
.36 HOUR FORECAST LOW WELL E OF AREA WITH ASSOCIATED CONDITIONS E
OF AREA.

GALE WARNING

LOW 42N70W 992 MB MOVING E 10 KT. WITHIN 540 NM NE AND E
AND
360 NM S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.

24 HOUR FORECAST LOW 42N64W 996 MB. WITHIN 600 NM NE
420 NM SE
AND S...AND 240 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14
FT.
.48 HOUR FORECAST LOW 46N59W 996 MB. BETWEEN 240 NM AND 660 NM NE
QUADRANT AND WITHIN 660 NM S AND 300 NM W QUADRANTS WINDS 25 TO
35 KT. SEAS 8 TO 14 FT.

GALE WARNING

.LOW 39N59W 1003 MB MOVING NE 20 KT. WITHIN 180 NM N QUADRANT AND
WITHIN 240 NM E AND SE OF A FRONT EXTENDING FROM THE LOW TO
36N60W TO 31N69W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 41N48W 1009 MB. WITHIN 360 NM SE QUADRANT
AND WITHIN 360 NM E AND SE OF A LINE FROM THE LOW TO 37N55W TO
31N61W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH NEW LOW TO FORM NEAR 43N43W
1002 MB. WITHIN 480 NM E SEMICIRCLE...AND WITHIN 300 NM E AND SE
OF A FRONT TO EXTEND FROM THE LOW TO 38N47W TO 31N56W WINDS 25 TO
35 KT. SEAS 8 TO 14 FT.

HEAVY FREEZING SPRAY WARNING

.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 59N45W TO
61N50W TO 62N55W TO 60N60W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N AND NW OF A LINE FROM 61N36W TO 58N45W TO 60N54W TO
55N56W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 65N W OF
GREENLAND. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 63N E
OF GREENLAND...AND N OF A LINE FROM 59N45W TO 61N61W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 60N46W TO 63N55W TO 63N58W.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST LOW 62N59W 1007 MB. WITHIN 240 NM NE AND 420 NM
SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT.

.DENSE FOG WITH VSBY OCCASIONALLY LESS THAN 1 NM N OF 62N E OF
GREENLAND AND N OF 61N BETWEEN 51W AND 54W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 48N W OF 56W INCLUDING
THE SOUTHERN GULF OF SAINT LAWRENCE.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 50N W OF 46W INCLUDING
THE GULF OF SAINT LAWRENCE.

.HIGH 55N57W 1024 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 53N47W 1025 MB.
.48 HOUR FORECAST HIGH 54N35W 1028 MB.

.HIGH 33N76W 1012 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST HIGH 32N38W 1025 MB.
.48 HOUR FORECAST HIGH MOVED E OF AREA.

.48 HOUR FORECAST HIGH 37N75W 1015 MB.

.FORECASTER HUFFMAN. 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 0000 UTC SAT APR 17.
24 HOUR FORECAST VALID 0000 UTC SUN APR 18.
48 HOUR FORECAST VALID 0000 UTC MON APR 19.

.WARNINGS.

GULF OF MEXICO GALE WARNING

.03 HOUR FORECAST COLD FRONT NW OF AREA. WITHIN 20N96W TO 22N97W
TO 27N97W TO 29N95W TO 25N96W TO 20N96W...INCLUDING WITHIN 60 NM
OF VERACRUZ...E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 28N88W TO 18N97W. WITHIN
23N97W TO 22N97W TO 22N98W TO 24N98W TO 24N97W TO 23N97W N WINDS
30 TO 40 KT. SEAS 9 TO 11 FT. ELSEWHERE...WITHIN 25N95W TO 19N96W
TO 23N98W TO 28N97W TO 28N91W TO 25N95W...INCLUDING WITHIN 60 NM
OF VERACRUZ...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.33 HOUR FORECAST COLD FRONT FROM 28N82W TO 24N89W TO 18N93W.
WITHIN 22N96W TO 22N97W TO 23N97W TO 23N96W TO 22N96W NW TO N
WINDS 25 TO 30 KT. SEAS 10 TO 12 FT. ELSEWHERE...WITHIN 23N95W TO
19N96W TO 22N98W TO 26N96W TO 26N92W TO 23N95W...INCLUDING
WITHIN 60 NM OF VERACRUZ...N WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
REMAINDER OF AREA...WITHIN 19N96W TO 23N98W TO 28N95W TO 29N93W
TO 19N96W N TO NE WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 27N82W TO 23N88W TO 18N92W.
WITHIN 22N94W TO 19N96W TO 23N98W TO 27N95W TO 25N92W TO
22N94W...INCLUDING WITHIN 60 NM OF VERACRUZ...N WINDS 20 TO 30
KT. SEAS 8 TO 10 FT.

ASHFALL ADVISORY

.LA SOUFRIERE ST. VINCENT VOLCANO AT 13.3N 61.2W IS PRODUCING
VOLCANIC EMISSIONS FROM ITS SUMMIT. THE VOLCANO REMAINS IN A
STATE OF UNREST AND COULD CONTINUE TO ERUPT WITH LITTLE NOTICE.
MARINERS TRAVELING IN THE VICINITY OF LA SOUFRIERE ARE URGED TO
EXERCISE CAUTION. REDUCED VISIBILITY DUE TO THE ASH IS POSSIBLE.
IF MARINERS ENCOUNTER VOLCANIC ASH OR FLOATING VOLCANIC
DEBRIS...YOU ARE ENCOURAGED TO REPORT THE OBSERVATION TO THE
NATIONAL HURRICANE CENTER BY CALLING 305-229-4424.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT NW OF AREA. WITHIN 30N65W TO 30N67W TO 30N69W
TO 31N69W TO 31N64W TO 30N65W SW WINDS 20 TO 25 KT. SEAS 8 TO 10
FT. ELSEWHERE...WITHIN 30N65W TO 30N67W TO 30N71W TO 31N71W TO
31N64W TO 30N65W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN PRIMARILY
N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N61W TO 28N71W. WITHIN
30N58W TO 30N61W TO 30N63W TO 31N63W TO 31N56W TO 30N58W WINDS 20
KT OR LESS. SEAS 8 FT IN N SWELL.
.36 HOUR FORECAST COLD FRONT FROM 31N56W TO 29N61W. CONDITIONS
IMPROVE.

.ATLC WITHIN 30N45W TO 28N50W TO 29N56W TO 31N54W TO 31N44W TO
30N45W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE.

.ATLC WITHIN 11N36W TO 11N40W TO 10N41W TO 10N46W TO 15N38W TO
11N36W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 09N44W TO 07N52W TO 11N55W TO 15N45W TO
14N41W TO 09N44W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN
NE SWELL.
.48 HOUR FORECAST WITHIN 07N50W TO 09N56W TO 12N57W TO 17N47W TO
14N46W TO 07N50W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE
SWELL.

.CARIBBEAN WITHIN 11N66W TO 12N72W TO 13N73W TO 13N70W TO 12N65W
TO 11N66W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 11N64W TO 11N68W TO 11N71W TO 13N73W TO
13N69W TO 11N64W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 12N74W TO 13N74W TO 13N73W TO 13N72W TO
12N74W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE...
WITHIN 10N64W TO 12N70W TO 11N74W TO 14N75W TO 13N65W TO 10N64W E
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN WITHIN 17N85W TO 16N85W TO 16N86W TO 17N86W TO 18N85W
TO 17N85W...INCLUDING THE GULF OF HONDURAS...E TO SE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 16N85W TO 16N86W TO 17N86W TO 17N85W TO
16N85W...INCLUDING THE GULF OF HONDURAS...E TO SE WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 18 HOUR FORECAST WITHIN 21N87W TO 22N88W TO
23N87W TO 22N86W TO 21N87W...INCLUDING THE YUCATAN CHANNEL...SE
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE.

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

.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.