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From: <ldm@weather.cod.edu>
Subject: North Pacific: High Seas Analysis
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Date: Thu, 6 Jan 2022 22:27:55 +0000
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882 
FZPN01 KWBC 062227
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
ISSUED BY NATIONAL WEATHER SERVICE HONOLULU HI 
2230 UTC THU JAN 06 2022 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

SECURITE 

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E 

SYNOPSIS VALID 1800 UTC JAN 06. 
24 HOUR FORECAST VALID 1800 UTC JAN 07. 
48 HOUR FORECAST VALID 1800 UTC JAN 08. 

.WARNINGS. 

...STORM WARNING... 
.LOW 38N166E 990 MB MOVING E 50 KT. WITHIN 300 NM S AND SW 
QUADRANTS WINDS 45 TO 55 KT. SEAS 22 TO 35 FT. ELSEWHERE WITHIN 
480 NM W AND 540 NM S QUADRANTS AND FROM 30N TO 36N W OF 178W 
WINDS 30 TO 45 KT. SEAS 14 TO 27 FT. 
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH NEW 
LOW 42N157W DESCRIBED BELOW.

...STORM WARNING... 
.LOW 40N170W 981 MB MOVING NE 20 KT. WITHIN 480 NM S AND 300 NM 
SE QUADRANTS WINDS 35 TO 50 KT. SEAS 15 TO 22 FT. ELSEWHERE FROM 
30N TO 40N BETWEEN 178W AND 167W AND WITHIN 540 NM E AND SE 
QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 20 FT.
.24 HOUR FORECAST LOW 49N166W 972 MB. WITHIN 240 NM S AND 420 NM 
N SEMICIRCLES WINDS 25 TO 40 KT. SEAS 9 TO 20 FT...HIGHEST S OF 
LOW. ELSEWHERE FROM 44N TO 54N BETWEEN 151W AND 175W AND N OF 
51N BETWEEN 160W AND 177W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 51N169W 972 MB. FROM 52N TO 60N BETWEEN 
165W AND 178E WINDS 30 TO 40 KT. SEAS 10 TO 20 FT. ALSO WITHIN 
300 NM S AND 360 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 17 
FT.  

...STORM WARNING... 
.LOW 43N135W 999 MB MOVING NE 30 KT. WITHIN 180 NM E QUADRANT 
AND WITHIN 240 NM E OF A FRONT FROM LOW TO 35N139W WINDS 25 TO 
35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 540 NM SE SEMICIRCLE 
AND 720 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.12 HOUR FORECAST LOW 46N127W 991 MB. WITHIN 60 NM OF COAST FROM 
42N TO 46N WINDS 35 TO 50 KT. SEAS 15 TO 23 FT. ELSEWHERE WITHIN 
300 NM S AND E SEMICIRCLES WINDS 25 TO 40 KT. SEAS 10 TO 17 FT.
.24 HOUR FORECAST LOW INLAND 50N119W 986 MB. FROM 46N TO 50N E 
OF 129W WINDS 25 TO 35 KT. SEAS 11 TO 16 FT. ELSEWHERE FROM 39N 
TO 54N E OF 139W WINDS TO 25 KT. SEAS 8 TO 15 FT. 
.48 HOUR FORECAST LOW WELL INLAND. COMDITIONS DIMINISHED.

...STORM WARNING... 
.24 HOUR FORECAST LOW 36N164E 998 MB. WITHIN 240 NM S AND SW 
QUADRANTS WINDS 35 TO 50 KT. SEAS 15 TO 20 FT. ELSEWHERE FROM 
30N TO 37N W OF 171E WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. 
.48 HOUR FORECAST LOW 39N170W 984 MB. WITHIN 420 NM S QUADRANT 
WINDS 40 TO 50 KT. SEAS 15 TO 27 FT. ELSEWHERE FROM 30N TO 39N 
BETWEEN 173W AND 179E AND WITHIN 660 NM W QUADRANT WINDS 25 TO 
40 KT. SEAS 11 TO 22 FT. 

...GALE WARNING... 
.LOW 43N176E 978 MB MOVING E 25 KT. BETWEEN 300 NM AND 660 NM W 
QUADRANT AND WITHIN 300 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 12 
TO 24 FT...HIGHEST SW OF LOW. ELSEWHERE WITHIN 360 NM S 
SEMICIRCLE AND FROM 43N TO 50N W OF 176E WINDS TO 25 KT. SEAS 10 
TO 18 FT IN MIXED SWELL. 
.24 HOUR FORECAST LOW 43N168W 986 MB. FROM 30N TO 36N BETWEEN 
163W AND 180W WINDS 30 TO 45 KT. SEAS 16 TO 27 FT. ELSEWHERE 
WITHIN 960 NM W AND 780 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 
10 TO 25 FT...HIGHEST SW OF LOW.
.48 HOUR FORECAST LOW 44N156W 982 MB. WITHIN 360 NM W AND SW OF 
A LINE FROM LOW TO 36N144W WINDS 25 TO 40 KT. SEAS 13 TO 22 FT.

...GALE WARNING... 
.LOW 54N179E 978 MB MOVING W 25 KT. WITHIN 540 NM E AND 360 NM 
NE QUADRANTS AND 180 NM SW SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 
TO 27 FT...HIGHEST NEAR 56N177E.
.24 HOUR FORECAST LOW DISSIPATED...WITH ASSOCIATED CONDITIONS AS 
DESCRIBED WITH LOW 49N166W ABOVE.

...GALE WARNING... 
.LOW 47N175W 971 MB MOVING NW 20 KT. WITHIN 420 NM E AND 240 NM 
S QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 16 FT. 
.24 HOUR FORECAST LOW 53N175E 982 MB. WITHIN 540 NM N QUADRANT 
WINDS 25 TO 40 KT. SEAS 9 TO 19 FT. 
.48 HOUR FORECAST LOW 52N167E 982 MB. N OF 53N W OF 179W WINDS 
25 TO 35 KT. SEAS 12 TO 18 FT. 

...GALE WARNING... 
.LOW 53N160W 998 MB MOVING NW 20 KT. FROM 53N TO 58N BETWEEN 
150W AND 165W EXCEPT WHERE PREVOUSLY NOTED...WINDS 25 TO 40 KT. 
SEAS 11 TO 19 FT.12 ELSEWHERE WITHIN 540 NM NE AND 300 NM NW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT IN MIXED SWELL. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS MERGED WITH LOW 
51N180W ABOVE. 

...GALE WARNING... 
.LOW 50N134W 988 MB MOVING SE 15 KT. WITHIN 300 NM OF LOW WINDS 
30 TO 45 KT. SEAS 10 TO 24 FT...HIGHEST S QUADRANT. 
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 49N124W 
DESCRIBED ABOVE. 

...GALE WARNING... 
.24 HOUR FORECAST NEW LOW 40N161W 989 MB. WITHIN 540 NM SE 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. 
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 43N150W 980 MB. 
WITHIN 300 NM NE...480 NM E QUADRANTS AND FROM 30N TO 41N 
BETWEEN 141W AND 165W WINDS 30 TO 45 KT. SEAS 10 TO 24 
FT...HIGHEST NEAR 34N159W. 

...GALE WARNING... 
.48 HOUR FORECAST LOW 36N167E 1004 MB. WITHIN 300 NM S AND 360 
NM W QUADRSANTS WINDS 25 TO 35 KT. SEAS 12 TO 16 FT. 

...GALE WARNING... 
.48 HOUR FORECAST N OF 57N E OF 150W AREA OF E TO SE WINDS 25 TO 
35 KT. SEAS 8 TO 15 FT. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A LINE FROM 
57N163W TO 62N176W. LIGHT TO MODERATE FREEZING SPRAY ELSEWHERE N 
AND NE OF A LINE FROM 52N130W TO 59N144W TO 59N153W AND N OF A 
LINE FROM 56N160W TO 60N179W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A 
LINE FROM 57N160W TO 62N176W. LIGHT TO MODERATE FREEZING SPRAY 
ELSEWHERE N AND NE OF A LINE FROM 52N130W TO 59N145W TO 58N153W 
AND NE OF A LINE FROM 56N160W TO 61N177W. 
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE 
FROM 56N160W TO 57N170W TO 61N177W. LIGHT TO MODERATE FREEZING 
SPRAY ELSEWHERE NE OF A LINE FROM 56N135W TO 60N147W AND N OF A 
LINE FROM 59N151W TO 55N161W TO 56N170W TO 61N178W. 

.SYNOPSIS AND FORECAST. 

.LOW 48N154W 1000 MB MOVING NE 10 KT. WITHIN 720 NM S QUADRANT 
WINDS 20 TO 30 KT. SEAS 10 TO 17 FT IN MIXED SWELL. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 

.FROM 30N TO 36N BETWEEN 119W AND 124W AREA OF NW TO N WINDS TO 
25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST CONDITIONS DIMINISHED. 

.48 HOUR FORECAST NEW LOW 50N155W 976 MB. FROM 48N TO 55N 
BETWEEN 134W AND 161W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 

.SEMISOPOCHNOI VOLCANO (AT POSITION 51.6N 179.4E) LOCATED 140 
NAUTICAL MILES W OF ADAK ISLAND IS CURRENTLY EXPERIENCING LOW 
LEVEL ERUPTIVE ACTIVITY. GIVEN THE RECENT HISTORY OF ERUPTIVE 
ACTIVITY AT THE VOLCANO...ADDITIONAL EMISSIONS MAY OCCUR AT ANY 
TIME. MARINERS ENCOUNTERING VOLCANIC ASH OR FLOATING VOLCANIC 
DEBRIS ARE ENCOURAGED TO REPORT THE OBSERVATION TO THE OCEAN 
PREDICTION CENTER BY CALLING 301 683 1520. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 53N E 
OF 134W AND FROM 54N TO 57N BETWEEN 147W AND 161W AND ALSO 
WITHIN 240 NM N OF A LINE FROM 53N168W TO 55N175W TO 53N178W TO 
51N170E. 
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF A LINE FROM 
45N149W TO 47N167W AND FROM 50N TO 57N BETWEEN 177W AND 173E. 
.48 HOUR FORECAST DENSE FOG FROM 46N TO 52N BETWEEN 141W AND 
155W...FROM 48N TO 52N BETWEEN 168W AND 179E...FROM 54N TO 56N W 
OF 180W AND FROM 49N TO 53N W OF 170E. 

.HIGH 32N131W 1025 MB MOVING SW 10 KT. 
.24 HOUR FORECAST HIGH S OF AREA. 

.HIGH 30N155W 1020 MB MOVING NE 25 KT. 
.24 HOUR FORECAST HIGH 35N144W 1020 MB. 
.48 HOUR FORECAST HIGH 50N128W 1021 MB. 

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC THU JAN 06.
24 HOUR FORECAST VALID 1800 UTC FRI JAN 07.
48 HOUR FORECAST VALID 1800 UTC SAT JAN 08.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.SE OF A LINE FROM 30N125W TO 23N130W TO 21N140W TO ANOTHER LINE 
FROM 30N118W TO 20N113W TO 10N120W TO 05N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN NW TO N SWELL...HIGHEST NEAR 10N132W.
.24 HOUR FORECAST FROM 10N TO 13N BETWEEN 118W AND 125W...AND 
FROM 11N TO 16N BETWEEN 113W AND 117W WINDS 20 KT OR LESS. SEAS 
8 FT IN NW TO N SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST FROM 10.5N TO 11.5N E OF 89W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.48 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST N OF 25N W OF 138W WINDS 20 KT OR LESS. SEAS 8 
FT IN NW SWELL.
.42 HOUR FORECAST N OF 24N W OF 137W WINDS 20 KT OR LESS. SEAS 8 
FT IN NW SWELL.
.48 HOUR FORECAST N OF 27N W OF 138W WINDS 20 KT OR LESS. SEAS 8 
FT IN NW SWELL.

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

CONVECTION VALID AT 2100 UTC THU JAN 6...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1009 MB LOW PRESSURE LOCATED 
OVER NORTHERN COLOMBIA NEAR 10N74W TO 07N83W TO 09N87W TO 
07N105W. THE ITCZ CONTINUES FROM 07N105W TO 10N115W TO 09N120W 
TO BEYOND 08N140W. SCATTERED MODERATE CONVECTION IS FROM 08N TO 
11N BETWEEN 115W AND 120W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION IS NOTED FROM 08N TO 12N BETWEEN 125W AND 135W.

$$
.FORECASTER GR/AM. NATIONAL HURRICANE CENTER.


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