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From: <ldm@weather.cod.edu>
Subject: North Pacific: High Seas Analysis
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Date: Fri, 7 Jan 2022 23:10:02 +0000
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720 
FZPN01 KWBC 072309 CCA
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
ISSUED BY NATIONAL WEATHER SERVICE HONOLULU HI 
2230 UTC FRI JAN 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 07. 
24 HOUR FORECAST VALID 1800 UTC JAN 08. 
48 HOUR FORECAST VALID 1800 UTC JAN 09. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.LOW 35N166E 996 MB MOVING NE 50 KT AND INTENSIFYING. WITHIN 180 
NM S SEMCIRCLE WINDS 35 TO 50 KT. SEAS 14 TO 23 FT. ELSEWHERE 
WITHIN 360 NM SE SEMICIRCLE AND 180 NM W QUADRANT WINDS 25 TO 35 
KT. SEAS 10 TO 17 FT. 
.24 HOUR FORECAST LOW 39N168W 978 MB. WITHIN 300 NM S AND 150 NM 
SW QUADRANTS WINDS 45 TO 55 KT. SEAS 18 TO 29 FT. ELSEWHERE FROM 
30N TO 39N BETWEEN 163W AND 178W AND WITHIN 420 NM NW AND 600 NM 
W QUADRANTS WINDS 30 TO 45 KT. SEAS 14 TO 24 FT.
.36 HOUR FORECAST LOW 40N157W 970 MB. WITHIN 240 NM S AND 150 NM 
SW QUADRANTS WINDS 50 TO 65 KT. SEAS 18 TO 36 FT.    
.48 HOUR FORECAST LOW 44N148W 969 MB. FROM 39N TO 44N BETWEEN 
144W AND 151W WINDS 50 TO 65 KT. SEAS 21 TO 37 FT. ALSO WITHIN 
300 NM SE AND S...240 NM SW AND 150 NM W QUADRANTS WINDS 35 TO 
50 KT. SEAS 18 TO 30 FT. ELSEWHERE WITHIN 360 NM E...420 NM 
S...300 NM W AND 120 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 14 
TO 27 FT.

...STORM WARNING... 
.LOW 36N166W 993 MB MOVING NE 40 KT. WITHIN 360 NM S AND 420 NM 
W QUADRANTS WINDS 30 TO 45 KT. SEAS 18 TO 27 KT. ELSEWHERE S OF 
A LINE FROM 40N179E TO LOW CENTER TO 35N156W WINDS 25 TO 40 KT. 
SEAS 12 TO 23 FT...EXCEPT WHERE DESCRIBED BELOW. 
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 44N150W 972 MB. 
FRONT TO EXTEND FROM LOW TO 40N145W TO 30N143W. WITHIN 300 NM S 
QUADRANT AND WITHIN 240 NM E OF FRONT N OF 37N WINDS 35 TO 50 
KT. SEAS 17 TO 23 FT. ELSEWHERE FROM 30N TO 49N BETWEEN 138W AND 
150W AND WITHIN 840 NM S AND 180 NM W QUADRANTS WINDS 25 TO 40 
KT. SEAS 9 TO 22 FT...HIGHEST NEAR 33N155W.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 55N151W 958 MB 
AND A NEW SECOND CENTER 54N145W 961 MB. WITHIN 240 NM SE 
SEMICIRCLE OF SECOND LOW AND N OF A LINE FROM 57N152W TO 58N147W 
AND N OF 47N WITHIN 240 NM N AND NE OF A FRONT FROM 58N147W TO 
54N140W TO 35N132W WINDS 40 TO 55 KT. SEAS 12 TO 25 FT...EXCEPT 
IN SE SEMICIRCLE OF SECOND LOW SEAS 21 TO 35 FT. ELSEWHWERE 
SEMICIRCLE...AND WITHIN 240 NM E QUADRANT WINDS 40 TO 50 KT. 
SEAS 17 TO 24 FT. ELSEWHERE N OF A LINE FROM 55N159W TO 47N129W 
AND WITHIN 300 NM E OF FRONT N OF 40N WINDS 25 TO 40 KT. SEAS 10 
TO 22 FT. 

...STORM WARNING... 
.WITHIN 180 NM NE OF A LINE FROM 58N156W TO 50N134W WINDS 20 TO 
30 KT. SEAS TO 12 FT. 
.18 HOUR FORECAST N OF 58N E OF 154W WINDS 25 TO 35 KT. SEAS  NM 
E QUADRANT WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST N OF A LINE FROM 58N154W TO 54N133W WINDS 30 
TO 45 KT. SEAS 9 TO 19 FT.
.30 HOUR FORECAST N OF A LKINE FROM 57N157W TO 59N144W WINDS 35 
TO 50 KT. SEAS 11 TO 20 FT. 
.48 HOUR FORECAST CONDITIONS MERGED WITH COMPLEX LOW AND FRONT 
DESCRIBED ABOVE.

...STORM WARNING...
.24 HOUR FORECAST LOW 37N175E 1003 MB. FROM 31N TO 37N W OF 177E 
AND WITHIN 780 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 38N163W 982 MB. WITHIN 300 NM S AND 180 NM 
SW QUADRANTS WINDS 40 TO 50 KT. SEAS 18 TO 25 FT. ELSEWHERE FROM 
30N TO 37N BETWEEN 159W AND 171W AND WITHIN 420 NM W QUADRANT 
WINDS 25 TO 40 KT. SEAS 13 TO 21 FT. 

...GALE WARNING... 
.LOW 48N165W 973 MB MOVING N 10 KT THEN TURNING NW IN 12 HOURS. 
WITHIN 480 NM N AND NE QUADRANTS AND 240 NM S AND SW SEMICIRCLES 
AND WITHIN 300 NM E OF A FRONT FROM 47N154W TO 30N160W WINDS 25 
TO 40 KT. SEAS 10 TO 21 FT. 
.24 HOUR FORECAST LOW 50N167W 969 MB. WITHIN 300 NM OF LOW AND 
FROM 51N TO 61N BETWEEN 163W AND 178E WINDS 25 TO 40 KT. SEAS 10 
TO 20 FT. 
.48 HOUR FORECAST LOW 48N169W 962 MB. N OF 48N BETWEEN 168W AND 
179E AND FROM 40N TO 48N BETWEEN 163W AND 169E WINDS 30 TO 45 
KT. SEAS 10 TO 27 FT...HIGHEST NEAR 42N175E.

...GALE WARNING... 
.LOW INLAND NEAR 49N119W 990 MB MOVING E 20 KT. WITHIN 300 NM W 
AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 17 FT. ELSEWHERE 
FROM 41N TO 51N E OF 134W WINDS TO 25 KT. SEAS 9 TO 20 FT IN 
MIXED SWELL...HIGHEST NEAR 43N138W.  
.24 HOUR FORECAST LOW WELL INLAND. CONDITIONS DIMINISHED. 

...GALE WARNING... 
.LOW 44N170W 985 MB MOVING NE 25 KT. WITHIN 300 NM SW SEMICIRCLE 
WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. 
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 50N167W 
DESCRIBED ABOVE. 

...GALE WARNING... 
.LOW 44N177E 990 MB MOVING E 25 KT. WITHIN 300 NM S AND 180 NM W 
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. 
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS AS 
DESCRIBED WITH LOW 39N168W ABOVE. 

...GALE WARNING... 
.LOW 53N176E 980 MB MOVING SW 15 KT. WITHIN 360 NM NE AND 480 NM 
N AND NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 
ELSEWHERE N OF 51N W OF 174W WINDS TO 25 KT. SEAS 10 TO 17 FT. 
.24 HOUR FORECAST LOW 51N165E 988 MB. FROM 39N TO 51N W OF 169E 
WINDS 25 TO 40 KT. SE40 KT. SEAS 11 TO 16 FT. 
.48 HOUR FORECAST LOW 50N163E 1002 MB. WITHIN 960 NM S QUADRANT 
EXCEPT WHERE DESCRIBED ABOVE...WINDS 20 TO 30 KT. SEAS 9 TO 18 
FT WITH MIXED SWELL. 

...GALE WARNING... 
.LOW 49N169E 986 MB MOVING NE 10 KT. WITHIN 240 NM S AND 360 NM 
W QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 16 FT. 
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW 
51N165E ABOVE.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 36N175W 997 MB. WITHIN 240 NM S 
QUADRANT AND FROM 30N TO 40N BETWEEN 175W AND 170E WINDS 30 TO 
45 KT. SEAS 13 TO 22 FT.

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE FROM 57N162W TO 
59N174W TO 62N176W AND N OF 60N E OF 153W. LIGHT TO MODERATE 
FREEZING SPRAY ELSEWHERE N OF 59N E OF 153W AND NE OF A LINE 
FROM 56N160W TO 61N177W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 59N 
BETWEEN 152W AND 154W INCLUDING IN COOK INLET...AND NE OF A LINE 
FROM 56N160W TO 57N170W TO 61N178W. LIGHT TO MODERATE FREEZING 
SPRAY ELSEWHERE N OF A LINE FROM 59N151W TO 55N162W TO 56N170W 
TO 60N179W. 
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 59N 
BETWEEN 152W AND 154W INCLUDING IN COOK INLET...AND N OF A LINE 
FROM 56N160W TO 55N169W TO 60N180W. LIGHT TO MODERATE FREEZING 
SPRAY ELSEWHERE N OF A LINE FROM 59N151W TO 52N167W TO 54N175W 
TO 58N177E. 

.SYNOPSIS AND FORECAST. 

.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 47N TO 50N 
BETWEEN 148W AND 170W AND WITHIN 240 NM NE OF A LINE FROM 
49N177W TO 55N171E AND ALSO FROM 49N TO 51N BETWEEN 170E AND 
165E. 
.24 HOUR FORECAST DENSE FOG FROM 51N TO 53N BETWEEN 133W AND 
152W...WITHIN 180 NM NE OF A LINE FROM 51N149W TO 43N154W...FROM 
47N TO 52N BETWEEN 166W AND 176W...WITHIN 120 NM N OF A LINE 
FROM 49N177W TO 55N172E AND FROM 49N TO 53N BETWEEN 167E AND 
163E. 
.48 HOUR FORECAST DENSE FOG N OF A INE FROM 59N141W TO 
57N150W...N OF 53N BETWEEN 150W AND 159W...FROM 51N TO 56N 
BETWEEN 160W AND 170W AND FROM 44N TO 51N BETWEEN 171W AND 
179W. 

.HIGH 36N139W 1021 MB MOVING NE 30 KT. 
.24 HOUR FORECAST HIGH 42N125W 1021 MB. 
.48 HOUR FORECAST HIGH INLAND. 

.HIGH 30N125W 1020 MB MOVING SW 10 KT. 
.24 HOUR FORECAST HIGH S OF AREA. 

.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 FRI JAN 07.
24 HOUR FORECAST VALID 1800 UTC SAT JAN 08.
48 HOUR FORECAST VALID 1800 UTC SUN JAN 09.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 05N TO 10N BETWEEN 134W AND 137W WINDS 20 KT OR LESS. SEAS 
8 FT IN NW TO N SWELL. FROM 06N TO 13N BETWEEN 120W AND 
125W...AND FROM 09N TO 15N BETWEEN 113W AND 120W WINDS 20 KT OR 
LESS. SEAS 8 FT IN NW SWELL. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10.5N TO 12N E OF 89W...INCLUDING THE GULF OF PAPAGAYO... 
NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.12 HOUR FORECAST NW OF LINE FROM 30N138W TO 28N140W WINDS 20 KT 
OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST N OF 28N W OF 138W S WINDS 20 TO 25 KT. SEAS 8 
TO 9 FT.
.36 HOUR FORECAST COLD FRONT FROM 30N138W TO 27N140W. N OF 28N E 
OF FRONT TO 133W S TO SW WINDS 20 TO 25 KT. SEAS 8 FT. N OF 29N 
W OF FRONT W TO NW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 30N133W TO 24N139W. 
W OF A LINE FROM 30N136W TO 27N140W WINDS 20 KT OR LESS. SEAS 8 
TO 12 FT IN NW SWELL.

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

CONVECTION VALID AT 2100 UTC FRI JAN 07...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH AXIS EXTENDS FROM LOW PRESSURE OF 1010 MB 
THAT IS LOCATED OVER COLOMBIA NEAR 07N76W TO 07N90W TO 05N105W 
TO A 1010 MB LOW PRESSURE SITUATED NEAR 10N118W TO 08N125W. THE 
ITCZ CONTINUES FROM 08N125W TO BEYOND 11N140W. SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION IS NOTED FROM 09N TO 12N 
BETWEEN 112W AND 121W.

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


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