North Atlantic High Seas Forecast

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FZNT01 KWBC 222215
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC JAN 22. 
24 HOUR FORECAST VALID 1800 UTC JAN 23. 
48 HOUR FORECAST VALID 1800 UTC JAN 24. 

.WARNINGS. 

...STORM WARNING...
.LOW 41N58W 992 MB MOVING NE 30 KT. FRONT EXTENDS FROM THE LOW 
TO 31N67W. WITHIN 120 NM OF LOW AND 180 NM E OF THE FRONT WINDS 
25 TO 40 KT. SEAS 11 TO 21 FT. ELSEWHERE FROM 31N TO 44N BETWEEN 
52W AND 75W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.06 HOUR FORECAST LOW 42N54W 985 MB. WITHIN 90 NM OF LOW EXCEPT 
180 NM SE QUADRANT WINDS 35 TO 50 KT. SEAS 14 TO 24 FT.
.24 HOUR FORECAST LOW 50N48W 977 MB. FRONT TO EXTEND FROM THE 
LOW TO 47N41W TO 40N44W TO 31N54W. WITHIN 180 NM OF LOW EXCEPT 
360 NM E QUADRANT...AND WITHIN 300 NM E OF THE FRONT WINDS 25 TO 
40 KT. SEAS 9 TO 18 FT.
.36 HOUR FORECAST LOW 52N52W 970 MB. WITHIN 360 NM N AND NE 
QUADRANTS WINDS 40 TO 55 KT. SEAS 20 TO 34 FT.
.48 HOUR FORECAST LOW 52N55W 976 MB. WITHIN 180 NM OF LOW AND 
FROM 53N TO 60N W OF 50W WINDS 25 TO 40 KT. SEAS 15 TO 30 FT.

...STORM WARNING...
.24 HOUR FORECAST FROM 32N TO 40N W OF 53W...AND FROM 40N TO 45N 
W OF 65W WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST NEW LOW 42N48W 972 MB. WITHIN 300 NM S AND 420 
NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 16 TO 28 FT. ELSEWHERE 
WITHIN 360 NM N AND NE QUADRANTS...FROM 31N TO 42N BETWEEN 35W 
AND 54W...AND FROM 31N TO 46N BETWEEN 54W AND 74W WINDS 25 TO 40 
KT. SEAS 10 TO 26 FT...HIGHEST SW OF THE LOW CENTER.

...STORM WARNING...
.48 HOUR FORECAST NEW LOW 54N43W 984 MB. WITHIN 180 NM N AND NE 
QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 26 FT. ELSEWHERE FROM 
52N TO 62N BETWEEN 35W AND 50W WINDS 25 TO 40 KT. SEAS 11 TO 22 
FT.

...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. 

.LOW 34N43W 1014 MB MOVING NE 25 KT. WITHIN 300 NM E OF A FRONT 
FROM 38N35W TO THE LOW TO 31N46W WINDS 20 TO 30 KT. SEAS TO 12 
FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 53N W 
OF 51W. 
.24 HOUR FORECAST DENSE FOG FROM 48N TO 54N BETWEEN 48W AND 55W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.48 HOUR FORECAST HIGH 35N76W 1025 MB. 

.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 1800 UTC FRI JAN 22.
24 HOUR FORECAST VALID 1800 UTC SAT JAN 23.
48 HOUR FORECAST VALID 1800 UTC SUN JAN 24.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.WITHIN 11N74W TO 11N76W TO 11N79W TO 14N79W TO 14N74W TO 11N74W
NE TO E WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 11N74W TO 11N77W TO 13N77W TO 13N74W TO
11N74W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.33 HOUR FORECAST WITHIN 11N74W TO 11N76W TO 12N76W TO 12N75W TO
12N74W TO 11N74W NE TO E WINDS 25 TO 35 KT. SEAS LESS THAN 8 FT.
ELSEWHERE WITHIN 11N75W TO 09N76W TO 12N78W TO 14N76W TO 12N74W 
TO 11N75W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. WITHIN 
11N70W TO 11N71W TO 12N72W TO 12N70W TO 11N70W...INCLUDING THE 
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.42 HOUR FORECAST WITHIN 11N74W TO 10N78W TO 11N78W TO 14N78W TO
13N74W TO 11N74W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. 
WITHIN 11N70W TO 11N72W TO 12N72W TO 12N71W TO 13N70W TO 
11N70W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N65W TO 30N81W. WITHIN 28N73W TO 29N77W 
TO 31N77W TO 31N69W TO 28N73W W TO NW WINDS 20 TO 25 KT. SEAS 8 
FT. WITHIN 29N62W TO 29N66W TO 30N70W TO 31N68W TO 31N58W TO 
29N62W
SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN MIXED SW WIND WAVES
AND N SWELL. WITHIN 24N47W TO 23N62W TO 29N61W TO 31N57W TO 
31N37W TO 24N47W WINDS 20 KT OR LESS. SEAS 9 TO 11 FT IN NW 
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N55W TO 27N65W. WITHIN 
28N52W TO 27N64W TO 31N61W TO 31N48W TO 28N52W SW TO W WINDS 20 
TO 30 KT. SEAS 9 TO 11 FT IN MIXED SW WIND WAVES AND NW SWELL. 
WITHIN 17N35W TO 18N54W TO 22N54W TO 31N47W TO 31N35W TO 17N35W 
WINDS 20 KT OR LESS. SEAS 9 TO 11 FT IN NW SWELL. 
.48 HOUR FORECAST COLD FRONT FROM 31N48W TO 26N52W. WITHIN 
29N36W TO 25N49W TO 26N52W TO 30N48W TO 31N35W TO 29N36W SW WINDS
20 TO 30 KT. SEAS 10 TO 12 FT. WITHIN 26N52W TO 26N66W TO 31N72W
TO 31N48W TO 26N52W NW WINDS 20 TO 25 KT. SEAS 11 TO 13 FT. 
WITHIN 15N35W TO 09N50W TO 13N51W TO 25N35W TO 15N35W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN NW SWELL.

.ATLC WITHIN 15N35W TO 18N40W TO 22N39W TO 24N35W TO 15N35W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.18 HOUR FORECAST NONE. 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.