FZNT01 KWBC 292136
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED MAR 29 2023

CCODE/1:31:04:01:00/AOE/NWS/CCODE
INMARSAT SAFETYNET BULLETINS ONLY REQUIRE CODING
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC MAR 29. 
24 HOUR FORECAST VALID 1800 UTC MAR 30.
48 HOUR FORECAST VALID 1800 UTC MAR 31.

.WARNINGS.

...GALE WARNING...
.LOW E OF AREA NEAR 58N30W 978 MB MOVING E 10 KT. N OF 53N E OF
43W WINDS 30 TO 45 KT. SEAS 17 TO 29 FT. ALSO E OF A LINE FROM
40N36W TO 50N50W TO 65N40W WINDS 20 TO 30 KT. SEAS 15 TO 20 FT.
ELSEWHERE FROM 40N TO 50N E OF 55W WINDS LESS THAN 25 KT. SEAS 10
TO 16 FT IN MIXED SWELL.  
.24 HOUR FORECAST LOW WELL E OF AREA. N OF 42N E OF 42W WINDS TO
25 KT. SEAS 12 TO 19 FT. ELSEWHERE FROM 36N TO 50N E OF 50W WINDS
LESS THAN 25 KT. SEAS 10 TO 15 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW WELL E OF AREA. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 42N37W 992 MB MOVING NE 50 KT. WITHIN 240 NM SE AND S
QUADRANTS WINDS 35 TO 45 KT. SEAS 15 TO 20 FT. ELSEWHERE WITHIN
540 NM S...AND 480 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO
17 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 32N68W 1011 MB MOVING NE 30 KT AND
SECOND CENTER 33N65W 1010 MB MOVING NE 40 KT. S OF A LINE FROM
31N78W TO 36N70W TO 31N55W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N43W 1012 MB AND
SECOND CENTER 37N57W 1010 MB. FROM 32N TO 40N E OF 50W WINDS 20
TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST COMBINED LOW 41N40W 1005 MB. FROM 31N TO 43N E
OF 45W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 48N65W 1008 MB. FROM 35N TO 45N BETWEEN 71W
AND 64W WINDS 25 TO 35 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 46N56W 1000 MB AND
SECOND CENTER 42N48W 998 MB. WITHIN 60 NM SW QUADRANT OF EACH
CENTER WINDS 35 TO 45 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN AN
AREA BOUNDED BY A LINE FROM 31N60W TO 39N68W TO 48N67W TO 48N49W
TO 41N45W TO 31N45W TO 31N60W WINDS 25 TO 40 KT. SEAS 9 TO 19
FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW E OF AREA NEAR 64N31W 990 MB. WITHIN
360 NM OF CENTER WINDS 25 TO 40 KT. SEAS 10 TO 21 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF GREENLAND.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF
GREENLAND AND WITHIN 120 NM E OF GREENLAND.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST .MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
GREENLAND. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 61N W
OF GREENLAND...WITHIN 120 NM E OF GREENLAND...AND FROM 44N TO 50N
BETWEEN 67W AND 57W.

.SYNOPSIS AND FORECAST.

.FROM 59N TO 66N BETWEEN 48W AND 60W AREA OF N WINDS 20 TO 30 KT.
SEAS 8 TO 11 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST FROM 36N TO 42N BETWEEN 72W AND 76W WINDS 20 TO
30 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 53N E OF
40W...AND FROM 46N TO 50N BETWEEN 46W AND 53W.
.24 HOUR FORECAST CONDITIONS IMPROVING.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 46N BETWEEN 61W AND
48W...AND N OF 63N E OF GREENLAND.

.24 HOUR FORECAST NEW HIGH 42N54W 1020 MB.
.48 HOUR FORECAST HIGH E OF AREA.

.48 HOUR FORECAST NEW HIGH 35N69W 1030 MB.

.FORECASTER BYRD. 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 WED MAR 29.
24 HOUR FORECAST VALID 1800 UTC THU MAR 30.
48 HOUR FORECAST VALID 1800 UTC FRI MAR 31.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.WITHIN 13N73W TO 13N76W TO 13N77W TO 11N77W TO 10N76W TO 11N74W 
TO 13N73W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE 
WITHIN 13N77W TO 14N77W TO 14N80W TO 14N81W TO 10N79W TO 10N77W 
TO 13N77W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.06 HOUR FORECAST WITHIN 12N75W TO 11N76W TO 11N75W TO 12N75W NE 
TO E WINDS 30 TO 35 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 14N70W 
TO 14N75W TO 13N79W TO 10N76W TO 12N72W TO 11N70W TO 14N70W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. 
SEAS 8 TO 9 FT...EXCEPT LESS THAN 8 FT IN GULF OF VENEZUELA.  
.18 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST LITTLE CHANGE.  
.30 HOUR FORECAST WITHIN 12N75W TO 11N75.5W TO 11N75W TO 12N75W 
NE TO E WINDS 30 TO 35 KT. SEAS 8 TO 10 FT. LITTLE CHANGE 
ELSEWHERE. 
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N75W TO 27N80W. WITHIN 31N75W TO 31N80W 
TO 30N79W TO 30N77W TO 31N75W NW TO N WINDS 20 TO 25 KT. SEAS 
TO 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N58W TO 26N69W THEN 
STATIONARY TO 25N80W. WITHIN 31N40W TO 31N60W TO 29N60W TO 
29N50W TO 30N45W TO 31N40W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT 
IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N49W TO 26N58W THEN 
WEAKENING STATIONARY TO 25N80W. WITHIN 23N65W TO 26N63W TO 
25N68W TO 26N76W TO 23N73W TO 23N65W NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT. WITHIN 31N44W TO 31N53W TO 31N64W TO 28N52W TO 
31N44W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.

.ATLC WITHIN 31N35W TO 31N45W TO 29N42W TO 27N40W TO 28N35W TO 
31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.24 HOUR FORECAST CONDITIONS TO MERGE WITH THOSE AS DESCRIBED 
ABOVE WITH COLD FRONT.

.ATLC WITHIN 12N52W TO 13N56W TO 10N58W TO 08N57W TO 10N53W TO 
12N52W WINDS 20 KT OR LESS. SEAS TO 8 FT IN N AND NE SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO COLD FRONT FROM 27N82W TO 26N90W THEN STATIONARY 
TO 26N96W AND TO 19N96W. WITHIN 29N92W TO 29N95W TO 27N96W TO 
26N95W TO 26N92W TO 29N92W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 
FT.
.12 HOUR FORECAST WEAKENING COLD FRONT FROM 24N82W TO 24N90W 
THEN WEAKENING STATIONARY TO 25N90W TO 26N96W AND TO 19N96W. 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$