Sandy Bay Yacht Club
Weather Center


 

North Atlantic Forecast

FZNT01 KWBC 162238 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT JAN 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 16. 
24 HOUR FORECAST VALID 1800 UTC JAN 17.
48 HOUR FORECAST VALID 1800 UTC JAN 18.

.WARNINGS.

...STORM WARNING...
.LOW 43N46W 974 MB MOVING E 20 KT. WITHIN 300 NM W AND SW
SEMICIRCLES AND BETWEEN 300 NM AND 480 NM NE QUADRANT WINDS 40 TO
55 KT. SEAS 21 TO 43 FT. ELSEWHERE WITHIN 420 NM W SEMICIRCLE AND
WITHIN 540 NM NE AND 720 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS
18 TO 30 FT. ALSO WITHIN 600 NM N AND 780 NM S SEMICIRCLES WINDS
20 TO 30 KT. SEAS 12 TO 24 FT. 
.24 HOUR FORECAST LOW 44N35W 985 MB. WITHIN 480 NM S AND 
SW...AND 480 NM N QUADRANTS WINDS 30 TO 45 KT. SEAS 14 TO 34 
FT...HIGHEST IN S QUADRANT. ELSEWHERE WITHIN 780 NM NW AND 660 
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 12 TO 22 FT.
.48 HOUR FORECAST LOW E OF AREA 46N26W 991 MB. WITHIN 240 NM W OF
A LINE FROM 36N35W TO 45N35W WINDS 20 TO 30 KT. SEAS 9 TO 20 FT.

...STORM WARNING...
.LOW INLAND 43N72W 990 MB MOVING NE 15 KT. WITHIN 240 NM W OF A
LINE FROM 44N66W TO 41N64W TO 31N66W WINDS 30 TO 45 KT. SEAS 10
TO 16 FT. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 31N63W
TO 38N61W TO 44N62W TO 45N67W TO 43N71W TO 42N70W TO 39N74W TO
35N76W TO 31N81W WINDS 20 TO 30 KT.  SEAS 8 TO 13 FT.
.12 HOUR FORECAST LOW INLAND 46N71W 985 MB. BETWEEN 300 NM AND
540 NM NE AND 420 NM AND 960 NM SE QUADRANTS WINDS 35 TO 50 KT.
SEAS 14 TO 24 FT.
.24 HOUR FORECAST LOW 48N65W NEAR GULF OF ST LAWRENCE 978 MB.
WITHIN 240 NM NE...BETWEEN 300 NM AND 860 NM SE...AND BETWEEN 240
AND 600 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 24 FT.
ELSEWHERE WITHIN 540 NM NE...1140 NM SE...AND 900 NM SW QUADRANTS
WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW INLAND 52N64W 983 MB. BETWEEN 300 NM AND 
600 NM NE QUADRANT WINDS 30 TO 40 KT. ELSEWHERE WITHIN 720 NM 
NE...600 NM SE...AND 780 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 
8 TO 16 FT.

...GALE WARNING ...
.LOW INLAND 64N67W 995 MB MOVING NE 15 KT. BETWEEN 120 NM AND 360
NM NE AND 180 NM AND 540 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS
8 TO 14 FT. 
.24 HOUR FORECAST LOW N OF AREA 69N62W 1002 MB. BETWEEN 180 AND
360 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW AND CONDITIONS N OF AREA.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 40N62W 1000 MB. WITHIN 180 NM E...420
NM S...AND 600 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 18
FT. ELSEWHERE WITHIN 540 NM NW AND NE...660 NM SE AND 960 NM SW
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A LINE FROM 50N54W
TO 55N53W TO 63N51W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 52N57W TO 65N53W TO 66N54W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W AND N OF A
LINE FROM 65N53W TO 67N52W.

.SYNOPSIS AND FORECAST.

.LOW 65N38W 1003 MB MOVING NEARLY STATIONARY. WITHIN AN AREA
BOUNDED BY A LINE FROM 63N35W TO 61N42W TO 60N45W TO 58N35W TO
63N35W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.48 HOUR FORECAST FROM 50 TO 56 N BETWEEN 49W AND 35W WINDS 20 TO
30 KT. SEAS 8 TO 14 FT.

.24 HOUR FORECAST DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM
FROM 43N TO 55N BETWEEN 35W AND 55W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 54N BETWEEN 43W AND 53W.

.HIGH 33N56W 1019 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.24 HOUR FORECAST HIGH 57N40W 1021 MB
.48 HOUR FORECAST HIGH E OF AREA.

.FORECASTER FUTTERMAN. 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 1800 UTC SAT JAN 16.
24 HOUR FORECAST VALID 1800 UTC SUN JAN 17.
48 HOUR FORECAST VALID 1800 UTC MON JAN 18.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC COLD FRONT FROM 31N72W TO 27N74W TO 22N78W. N OF 28N W OF 
FRONT W TO NW WINDS 25 TO 30 KT WITH FREQUENT GUSTS TO GALE 
FORCE. SEAS 9 TO 12 FT. ELSEWHERE N OF 26N W OF FRONT W TO NW 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. N OF 28N E OF FRONT TO 65W S 
TO SW WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF 25N E 
OF FRONT TO A LINE FROM 31N64W TO 27N70W TO 25N73W S TO SW WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT. 
.12 HOUR FORECAST COLD FRONT FROM 31N65W TO 27N68W TO 21N76W. N 
OF 28N W OF FRONT W TO NW WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. 
ELSEWHERE N OF 26N W OF FRONT TO 77W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN NW SWELL. N OF 28N E OF FRONT TO A LINE FROM 31N60W 
TO 28N65W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N58W TO 26N65W THEN 
STATIONARY TO 21N76W. N OF 29N E OF FRONT TO 56W S TO SW WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT. N OF 26N W OF FRONT TO 73W WINDS 20 
KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...HIGHEST N OF 30N.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 31N52W TO 27N58W. 
CONDITIONS MERGED.

.SYNOPSIS AND FORECAST.

.ATLC S OF 17N E OF 45W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 
FT. ELSEWHERE S OF A LINE FROM 20N35W TO 15N50W TO 12N60W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN NE SWELL.
.24 HOUR FORECAST S OF 13N BETWEEN 40W AND 50W NE TO E WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE S OF A LINE FROM 22N35W TO 
15N51W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.48 HOUR FORECAST S OF 20N AND E OF A LINE FROM 20N56W TO 15N60W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.

.ATLC N OF 30N E OF 52W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW 
SWELL.
.24 HOUR FORECAST N OF A LINE FROM 31N35W TO 27N42W TO 27N51W TO 
30N56W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...EXCEPT 
12 TO 15 FT N OF 29N BETWEEN 37W AND 48W. 
.48 HOUR FORECAST N OF 20N AND E OF A LINE FROM 31N42W TO 20N56W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

.ATLC 42 HOUR FORECAST COLD FRONT FROM 31N71W TO 27N72W TO 
22N78W. N OF 28N W OF FRONT W TO NW WINDS 20 TO 25 KT. SEAS 8 TO 
9 FT. N OF 28N E OF FRONT TO A LINE FROM 31N68W TO 28N72W SW 
WINDS 20 TO 30 KT. SEAS TO 9 FT. N OF 25N E OF 64W TO A LINE 
FROM 31N54W TO 25N63W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N68W TO 27N71W TO 21N77W. N 
OF 28N W OF FRONT TO 80W W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 10 
FT. N OF 28N E OF FRONT TO 64W S TO SW WINDS 20 TO 30 KT. SEAS 8 
FT. ELSEWHERE N OF 23N E OF 65W TO A LINE FROM 31N52W TO 23N61W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.

.CARIBBEAN FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E WINDS 20 
TO 25 KT. SEAS TO 8 FT. 
.12 HOUR FORECAST FROM 10 TO 14 BETWEEN 73W AND 78W NE TO E 
WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT NEAR THE COAST OF 
COLOMBIA. SEAS 8 FT.
.24 HOUR FORECAST FROM 11N TO 14N BETWEEN 72W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.36 HOUR FORECAST FROM 10 TO 14 BETWEEN 73W AND 78W NE TO E 
WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT NEAR THE COAST OF 
COLOMBIA. SEAS 8 TO 10 FT.
.48 HOUR FORECAST FROM 10.5N TO 15N BETWEEN 72W AND 80W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.GULF OF MEXICO N OF 24N E OF 92W NW WINDS 20 TO 25 KT. SEAS 8 
TO 10 FT.
.06 OUR FORECAST FROM 23N TO 28N E OF 87W WINDS 20 KT OR LESS. 
SEAS 8 FT IN NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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


.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$


 

 



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