North Atlantic High Seas Forecast

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FZNT01 KWBC 311025
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT OCT 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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.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 0600 UTC OCT 31. 
24 HOUR FORECAST VALID 0600 UTC NOV 01.
48 HOUR FORECAST VALID 0600 UTC NOV 02.

.WARNINGS.

...STORM WARNING... 
.COMPLEX LOW WITH MAIN LOW 41N56W 989 MB MOVING NE 45 KT AND A
SECOND LOW 42N50W 992 MB MOVING NE 50 KT. WITHIN 300 NM S
SEMICIRCLE AND 180 NM W AND 120 NM N QUADRANTS OF MAIN LOW WINDS
40 TO 50 KT. SEAS 17 TO 27 FT. ALSO FROM 35N TO 45N BETWEEN 48W
AND 65W AND WITHIN 300 NM S AND SE QUADRANTS OF SECOND LOW WINDS
25 TO 40 KT. SEAS 10 TO 21 FT. ELSEWHERE FROM 31N TO 47N W OF 45W
WINDS 20 TO 30 KT. SEAS 8 TO 20 FT...HIGHEST SW OF MAIN LOW.
.24 HOUR FORECAST COMBINED LOW E OF AREA 46N33W 986 MB. WITHIN
180 NM NW AND 300 NM SW QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO
34 FT...HIGHEST NEAR 43N36W. ELSEWHERE FROM 37N TO 48N E OF 48W
WINDS 25 TO 40 KT. SEAS 12 TO 28 FT. ALSO E OF A LINE FROM 49N59W
TO 36N53W TO 32N50W WINDS 20 TO 30 KT. SEAS 8 TO 19 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

...STORM WARNING... 
.LOW E OF AREA 47N34W 980 MB MOVING NE 40 KT AND RAPIDLY
INTENSIFYING. WITHIN 300 NM S QUADRANT WINDS 40 TO 50 KT. SEAS 15
TO 24 FT. ELSEWHERE E OF A LINE FROM 47N39W TO 39N45W WINDS 25 TO
40 KT. SEAS 12 TO 21 FT. 
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.

....STORM WARNING...
.LOW 63N36W 974 MB MOVING SW 10 KT NEXT 12 HOURS THEN TURNING SE.
WITHIN 180 NM NW SEMICIRCLE AND 420 NM W QUADRANT WINDS 25 TO 40
KT. SEAS 12 TO 23 FT. ELSEWHERE N OF 59N E OF 43W AND N OF 57N W
OF 43W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 59N36W 980 MB. WITHIN 240 NM S OF A LINE
FROM 61N47W TO 59N36W WINDS 25 TO 40 KT. SEAS 12 TO 20 FT.
ELSEWHERE FROM 49N TO 60N E OF 59W AND N OF 60N W OF 42W WINDS 20
TO 30 KT. SEAS 10 TO 18 FT...EXCEPT W OF 49W 8 TO 12 FT.
.48 HOUR FORECAST LOW E OF AREA. WITHIN 180 NM S OF A LINE FROM
60N45W TO 59N35W AREA OF W TO NW WINDS 40 TO 50 KT. SEAS 15 TO 27
FT. ALSO E OF A LINE FROM 60N48W TO 51N35W WINDS 25 TO 40 KT.
SEAS 10 TO 21 FT. ELSEWHERE N OF A LINE FROM 43N35W TO 49N48W TO
58N50W WINDS 20 TO 30 KT. SEAS 8 TO 20 FT...HIGHEST NEAR 51N35W.

...GALE WARNING...
.LOW 55N37W 975 MB MOVING E 20 KT AND INTENSIFYING. FROM 49N TO
55N BETWEEN 39W AND 50W AND WITHIN 180 NM W AND 120 NM N
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 19 FT...HIGHEST NEAR
52N41W. ELSEWHERE FROM 48N TO 57N E OF 59W WINDS 20 TO 30 KT.
SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW MOVED E OF AREA. CONDITIONS DESCRIBED WITH
LOW 59N36W ABOVE.


...GALE WARNING...
.24 HOUR FORECAST NEW LOW E OF AREA 64N33W 978 MB. WITHIN 180 NM
W AND NW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW E OF AREA 63N32W 977 MB. ASSOCIATED
CONDITIONS AS DESCRIBED WITH THIRD STORM WARNING ABOVE.

...GALE WARNING...
.36 HOUR FORECAST W OF A LINE FROM 52N56W TO 44N60W TO 38N64W TO
34N74W AREA OF S WINDS 20 TO 30 KT. SEAS TO 8 FT.
.42 HOUR FORECAST INLAND LOW 49N77W 996 MB. BETWEEN 74W AND A
LINE FROM 51N58W TO 39N62W TO 35M72W WINDS 25 TO 35 KT. SEAS TO
12 FT.
.48 FORECAST NEW LOW 44N69W 994 MB. FRONT TO EXTEND FROM LOW TO
36N70W TO 31N76W. WITHIN 480 NM E SEMICIRCLE AND W OF THE FRONT S
OF 40N WINDS 25 TO 40 KT. SEAS 8 TO 15 FT...HIGHEST NEAR 39N65W. 
ELSEWHERE FROM 36N TO 56N W OF 50W AND FROM 31N TO 36N W OF 56W
WINDS 20 TO 30 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST BETWEEN 31N AND A LINE FROM 36N53W TO 33N78W
AREA OF E TO NE WINDS TO 25 KT. SEAS 9 TO 16 FT WITH N TO NE
SWELL...HIGHEST NE.
.48 HOUR FORECAST FROM 31N TO 36N E OF 50W AREA OF E TO NE WINDS
TO 25 KT. SEAS 8 TO 13 FT.  

.LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A LINE FROM 56N59W

TO 60N60W TO 63N52W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE 
FROM 54N55W TO 60N60W TO 67N56W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE 
FROM 5760W TO 62N58W. 

.24 HOUR FORECAST HIGH 42N63W 1034 MB. 
.48 HOUR FORECAST HIGH 42N46W 1035 MB.

.FORECASTER BANCROFT. 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 SAT OCT 31.
24 HOUR FORECAST VALID 0600 UTC SUN NOV  1.
48 HOUR FORECAST VALID 0600 UTC MON NOV  2.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N67W TO 26N80W. WITHIN 30N70W TO 31N75W 
TO 31N66W TO 30N70W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W TO 
NW SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N56W TO 24N81W. WITHIN
29N52W TO 29N64W TO 26N75W TO 31N81W TO 31N46W TO 29N52W WINDS 
20 KT OR LESS. SEAS 8 TO 12 FT IN N SWELL.
.48 HOUR FORECAST FRONT DISSIPATED. WITHIN 23N35W TO 26N53W TO 
22N69W TO 30N72W TO 31N35W TO 23N35W WINDS 20 KT OR LESS. SEAS 8 
TO 12 FT IN NW TO N SWELL.

.ATLC WITHIN 07N35W TO 07N54W TO 19N61W TO 18N43W TO 22N35W TO 
07N35W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 07N35W TO 07N50W TO 13N61W TO 18N61W TO
19N35W TO 07N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E 
SWELL.
.48 HOUR FORECAST WITHIN 07N51W TO 12N60W TO 20N61W TO 13N35W TO
07N51W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL.

.ATLC 24 HOUR FORECAST WITHIN 20N71W TO 20N74W TO 21N74W TO
21N73W TO 21N72W TO 20N71W...INCLUDING THE WINDWARD PASSAGE...E 
WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC AND GULF OF MEXICO 48 HOUR FORECAST COLD FRONT FROM 31N74W
TO 26N89W TO 26N97W. WITHIN 27N86W TO 27N94W TO 30N94W TO 31N77W
TO 27N86W N TO NE WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN LOW PRES NEAR 15N70W 1007 MB. WITHIN 14N65W TO 15N69W
TO 17N70W TO 18N68W TO 16N65W TO 14N65W E WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT IN N TO NE SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N75W 1005 MB. WITHIN 14N65W TO 16N77W TO 18N76W TO 18N68W TO
16N64W TO 14N65W E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N80W 1002 MB. WITHIN 16N71W TO 15N75W TO 16N82W TO 19N80W TO 
18N74W TO 16N71W E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.GULF OF MEXICO WITHIN 19N93W TO 18N95W TO 19N96W TO 20N96W TO
20N93W TO 19N93W NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 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 MUNDELL. NATIONAL HURRICANE CENTER.

$$