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National Weather Service Marine Forecast FZNT01 KWBC

FZNT01 KWBC 221618
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI JAN 22 2021

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1200 UTC JAN 22.
24 HOUR FORECAST VALID 1200 UTC JAN 23.
48 HOUR FORECAST VALID 1200 UTC JAN 24.

.WARNINGS.

STORM WARNING

.LOW 39N63W 996 MB MOVING NE 30 KT. FRONT EXTENDS FROM THE LOW
TO 31N71W. WITHIN 180 NM E QUADRANT AND 180 NM E OF THE FRONT
WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE FROM 31N TO 41N W
OF 58W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.12 HOUR FORECAST LOW 43N53W 985 MB. WITHIN 180 NM E AND SE
SEMICIRCLES WINDS 35 TO 50 KT. SEAS 12 TO 20 FT.
.24 HOUR FORECAST LOW 47N50W 980 MB. FRONT TO EXTEND FROM THE
LOW TO 43N46W TO 31N56W. WITHIN 240 NM OF LOW EXCEPT 360 NM E
QUADRANT...AND WITHIN 360 NM E OF THE FRONT WINDS 25 TO 40 KT.
SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 52N53W 971 MB. FROM 53N TO 58N W OF 42W
WINDS 40 TO 55 KT. SEAS 18 TO 34 FT. ELSEWHERE WITHIN 300 NM S
SEMICIRCLE AND 480 NM N QUADRANT...AND N OF A LINE FROM 53N35W
TO 50N35W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.

GALE WARNING

.LOW 49N48W 984 MB MOVING NW 10 KT. WITHIN 300 NM S AND NE
QUADRANTS WINDS 35 TO 45 KT. SEAS 18 TO 35 FT...HIGHEST S
QUADRANT. ELSEWHERE FROM 40N TO 57N BETWEEN 35W AND 57W WINDS 25
TO 35 KT. SEAS 10 TO 25 FT...HIGHEST S OF THE LOW CENTER.
.24 HOUR FORECAST LOW 52N54W 986 MB. WITHIN 480 NM N QUADRANT
AND 480 NM N OF A FRONT FROM THE LOW TO 53N46W TO 51N35W WINDS
25 TO 40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED
CONDITIONS DIMINISHED.

GALE WARNING

.24 HOUR FORECAST FROM 33N TO 42N BETWEEN 55W AND 75W WINDS 20
TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST NEW LOW 41N53W 985 MB. S OF 62N WITHIN 720 NM
E...600 NM S...AND 1200 NM W QUADRANTS WINDS 25 TO 40 KT. SEAS
10 TO 25 FT...HIGHEST W QUADRANT.

HEAVY FREEZING SPRAY WARNING

.MODERATE TO HEAVY FREEZING SPRAY ACROSS THE GULF OF ST LAWRENCE
WITHIN 180 NM OF 49N63W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 47N W OF
60W....AND NW OF A LINE 62N60W TO 66N54W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE
FROM 62N60W TO 67N55W.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST NEW LOW 39N35W 1010 MB. WITHIN 300 NM E OF A
FRONT FROM THE LOW TO 31N42W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 56N
BETWEEN 51W AND 59W.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM OF 49N49W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 55N W OF 51W.

.FORECASTER COLLINS. 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 FRI JAN 22.
24 HOUR FORECAST VALID 1200 UTC SAT JAN 23.
48 HOUR FORECAST VALID 1200 UTC SUN JAN 24.

.WARNINGS.

GALE WARNING

.CARIBBEAN WITHIN 12N74W TO 10N76W TO 11N79W TO 13N79W TO 13N76W
TO 12N74W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.18 HOUR FORECAST WITHIN 11N74.5W TO 11N75W TO 11.5N75.5W TO
12N75W TO 12N74W TO 11N74.5W NE TO E WINDS 25 TO 35 KT. SEAS TO
8 FT.

24 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS BELOW GALE FORCE.
.36 HOUR FORECAST WITHIN 11N74W TO 11N75W TO 12N75W TO 12N74W TO
11N74W NE WINDS 25 TO 35 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 11N70W TO 11N74W TO 10N78W TO 14N79W TO
14N70W TO 11N70W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 30N65W TO 30N68W TO 30N75W TO 31N75W TO 31N64W TO
30N65W W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. WITHIN 25N48W TO
24N65W TO 31N64W TO 31N41W TO 25N48W WINDS 20 KT OR LESS. SEAS 9
TO 11 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N58W TO 28N70W. WITHIN
28N56W TO 27N65W TO 28N69W TO 31N64W TO 31N53W TO 28N56W W WINDS
20 TO 30 KT. SEAS 8 TO 10 FT. WITHIN 23N38W TO 19N54W TO 28N56W
TO 31N52W TO 31N35W TO 23N38W WINDS 20 KT OR LESS. SEAS 9 TO 11
FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N52W TO 26N58W. WITHIN
29N37W TO 26N49W TO 26N55W TO 30N53W TO 31N35W TO 29N37W SW WINDS
20 TO 30 KT. SEAS 9 TO 11 FT IN MIXED SW WIND WAVES AND NW
SWELL. WITHIN 26N55W TO 28N68W TO 31N72W TO 31N52W TO 26N55W NW
WINDS 20 TO 30 KT. SEAS 11 TO 13 FT.

.ATLC WITHIN 07N41W TO 06N51W TO 08N54W TO 10N52W TO 09N45W TO
07N41W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.ATLC WITHIN 15N35W TO 15N38W TO 18N41W TO 20N40W TO 24N35W TO
15N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 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 LANDSEA. NATIONAL HURRICANE CENTER.