North Atlantic High Seas Forecast

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FZNT01 KWBC 301004
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC MON MAR 30 2020

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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.SHTML 
(LOWERCASE EXCEPT CAPITAL A IN ATL).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 0600 UTC MAR 30. 
24 HOUR FORECAST VALID 0600 UTC MAR 31.
48 HOUR FORECAST VALID 0600 UTC APR 01.

.WARNINGS.

...GALE WARNING...
.LOW 38N49W 1002 MB MOVING SE 20 KT. WITHIN 300 NM SW...AND 240
NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE
OVER FORECAST WATERS FROM 31N TO 44N BETWEEN 46W AND 59W WINDS 20
TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 33N43W 998 MB AND
SECOND CENTER 38N40W 997 MB. WITHIN 300 NM N...AND 420 NM NE
QUADRANTS WINDS 30 TO 45 KT. SEAS 11 TO 20 FT. ELSEWHERE FROM 31N
TO 52N E OF 50W WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 36N37W 993 MB AND
SECOND CENTER 36N45W 997 MB. WITHIN 420 NM NE OF A FRONT TO
EXTEND FROM 39N46W TO 39N40W TO 38N35W WINDS 30 TO 45 KT. SEAS 16
TO 27 FT. ELSEWHERE FROM 31N TO 50N E OF 55W WINDS 20 TO 30 KT.
SEAS 8 TO 19 FT...HIGHEST WITHIN 600 NM N QUADRANT OF SECOND
CENTER.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 42N43W 1005 MB MOVING NW 20 KT AND
SECOND CENTER 45N48W 1005 MB MOVING NW 10 KT. OVER FORECAST
WATERS WITHIN 240 NM NE OF A FRONT EXTENDING FROM 44N45W TO MAIN
CENTER TO 39N39W WINDS 25 TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE
FROM 31N TO 44 N E OF 46W...AND FROM 44N TO 51N E OF 58W WINDS 20
TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST COMPLEX LOW ABSORBED BY LOW 39N62W DESCRIBED
BELOW.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 40N70W 1009 MB MOVING E 15 KT AND
SECOND CENTER 37N75W 1011 MB MOVING E 15 KT. OVER FORECAST WATERS
WITHIN 240 NM NE QUADRANT OF MAIN CENTER WINDS 25 TO 35 KT. SEAS
TO 11 FT. ELSEWHERE FROM 32N TO 44N W OF 63W WINDS 20 TO 30 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST COMBINED LOW 39N62W 998 MB. WITHIN 300 NM NW
QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 31N
TO 44N BETWEEN 57W AND 76W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 40N60W 992 MB. WITHIN 180 NM NW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE FROM 31N TO 46N
BETWEEN 55W AND 66W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW 33N76W 995 MB. OVER FORECAST WATERS WITHIN
120 NM OF LOW CENTER WINDS 30 TO 45 KT. SEAS 10 TO 15 FT.
ELSEWHERE FROM 31N TO 38N W OF 70W WINDS 20 TO 30 KT. SEAS TO 11
FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW N OF AREA NEAR 67N28W 1002 MB. OVER ICE
FREE FORECAST WATERS WITHIN 360 NM SW QUADRANT WINDS 30 TO 45 KT.
SEAS 12 TO 20 FT. ELSEWHERE N OF 55N W OF 35W WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS N
OF 46N W OF 53W...AND NW OF A LINE FROM 57N57W TO 62N50W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 58N58W TO 63N51W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF
GREENLAND...AND N OF 64N E OF GREENLAND.

.SYNOPSIS AND FORECAST.

.OVER ICE FREE FORECAST WATERS N OF 51N E OF 54W WINDS 20 TO 30
KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST N OF 52N E OF 55W WINDS 20 TO 30 KT. SEAS 9 TO
14 FT.
.48 HOUR FORECAST CONDITIONS ABSORBED BY NEW LOW N OF AREA NEAR
67N28W DESCRIBED IN WARNINGS SECTIONS ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 50N
BETWEEN 46W AND 53W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 55N BETWEEN 44W AND 53W.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 56N BETWEEN 40W AND 56W.

.FORECASTER FOLMER. 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 0600 UTC MON MAR 30.
24 HOUR FORECAST VALID 0600 UTC TUE MAR 31.
48 HOUR FORECAST VALID 0600 UTC WED APR  1.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.CARIBBEAN WITHIN 11N75W TO 12N76W TO 12N75W TO 12N74W TO 11N75W
NE TO E WINDS 25 TO 35 KT. SEAS 12 TO 14 FT. ELSEWHERE WITHIN
11N75W TO 11N77W TO 12N77W TO 12N76W TO 12N75W TO 11N75W NE TO E
WINDS 20 TO 30 KT. SEAS 10 TO 13 FT. REMAINDER OF AREA WITHIN 
14N70W TO 10N65W TO 12N80W TO 16N79W TO 18N70W TO 14N70W... 
INCLUDING THE MONA PASSAGE...NE TO E WINDS 20 TO 30 KT. SEAS 8 TO
10 FT. 
.06 HOUR FORECAST WITHIN 11N75W TO 10N77W TO 12N78W TO 12N77W TO
12N75W TO 11N75W NE TO E WINDS 20 TO 30 KT. SEAS 11 TO 13 FT. 
ELSEWHERE WITHIN 13N70W TO 10N78W TO 11N80W TO 16N79W TO 17N71W 
TO 13N70W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER 
OF AREA WITHIN 13N70W TO 09N77W TO 10N80W TO 17N79W TO 18N70W TO 
13N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 11N74W TO 11N75W TO 12N75W TO 12N74W TO
11N74W NE TO E WINDS 25 TO 35 KT. SEAS 10 TO 12 FT. ELSEWHERE 
WITHIN 10N79W TO 12N81W TO 16N78W TO 17N74W TO 14N71W TO 10N79W 
NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA 
WITHIN 11N70W TO 10N79W TO 13N81W TO 15N80W TO 17N74W TO 11N70W 
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 12N74W TO 11N75W TO 12N75W TO 12N74W NE
TO E WINDS 25 TO 35 KT. SEAS 11 TO 13 FT. ELSEWHERE WITHIN 
11N74W TO 11N76W TO 11N77W TO 12N75W TO 12N74W TO 11N74W NE TO E 
WINDS 20 TO 30 KT. SEAS 10 TO 13 FT. REMAINDER OF AREA WITHIN 
11N70W TO 10N77W TO 11N80W TO 15N79W TO 15N76W TO 11N70W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.30 HOUR FORECAST WITHIN 11N75W TO 11N77W TO 12N77W TO 12N76W TO
12N75W TO 11N75W NE TO E WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. 
ELSEWHERE WITHIN 11N74W TO 10N77W TO 12N80W TO 15N76W TO 14N72W 
TO 11N74W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER 
OF AREA WITHIN 11N71W TO 09N78W TO 13N80W TO 15N75W TO 14N72W TO 
11N71W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 11N74W TO 11N76W TO 12N76W TO 12N75W TO
12N74W TO 11N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

...ATLC GALE WARNING...
.ATLC 39 HOUR FORECAST WITHIN 30N72W TO 30N75W TO 31N76W TO 
31N72W TO 30N72W SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 31N76W TO 28N81W. WITHIN 
30N72W TO 30N75W TO 31N76W TO 31N72W TO 30N72W SW WINDS 25 TO 40 
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 29N70W TO 26N72W TO 27N79W 
TO 31N80W TO 31N70W TO 29N70W SW WINDS 20 TO 30 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N39W TO 22N54W TO 27N61W. WITHIN 30N49W 
TO 30N50W TO 30N51W TO 31N51W TO 31N49W TO 30N49W NW WINDS 20 TO 
25 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 30N36W TO 29N46W TO 
28N53W TO 31N56W TO 31N36W TO 30N36W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN N SWELL.
.09 HOUR FORECAST COLD FRONT FROM 31N37W TO 20N56W. WITHIN 
30N49W TO 30N51W TO 31N53W TO 31N47W TO 30N49W NW WINDS 20 TO 25 
KT. SEAS 11 TO 13 FT. ELSEWHERE WITHIN 28N36W TO 30N52W TO 31N53W
TO 31N44W TO 31N36W TO 28N36W SW TO W WINDS 20 TO 25 KT. SEAS 8 
TO 10 FT. REMAINDER OF AREA WITHIN 28N36W TO 29N45W TO 27N52W TO 
31N56W TO 31N35W TO 28N36W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 27N35W TO 17N51W. 
WITHIN 29N44W TO 28N45W TO 29N50W TO 31N52W TO 31N44W TO 29N44W 
NW WINDS 20 TO 25 KT. SEAS 11 TO 13 FT. ELSEWHERE WITHIN 28N41W 
TO 28N47W TO 29N51W TO 31N53W TO 31N42W TO 28N41W W TO NW WINDS 
20 TO 25 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA WITHIN 27N35W TO
26N42W TO 25N51W TO 31N62W TO 31N35W TO 27N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN N SWELL. 
.48 HOUR FORECAST NEW COLD FRONT FROM 31N44W TO 26N49W. WITHIN 
29N44W TO 27N44W TO 29N56W TO 31N51W TO 31N36W TO 29N44W W WINDS 
20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 25N36W TO 24N47W 
TO 29N58W TO 31N54W TO 31N35W TO 25N36W WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN NW TO N SWELL.

.ATLC AND CARIBBEAN WITHIN 19N75W TO 20N74W TO 20N73W TO
19N75W...INCLUDING THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE.

.CARIBBEAN WITHIN 16N87W TO 17N87W TO 17N86W TO 16N86W TO 
16N87W...INCLUDING THE GULF OF HONDURAS...E TO SE WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE.

.GULF OF MEXICO 33 HOUR FORECAST WITHIN 29N88W TO 30N88W TO 
29N88W TO 30N87W TO 29N88W SW TO W WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 27N82W TO 23N90W. WITHIN 
29N88W TO 28N87W TO 29N88W TO 30N88W TO 30N87W TO 29N88W N WINDS 
20 TO 25 KT. SEAS LESS THAN 8 FT.

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


.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.

$$