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From: <ldm@weather.cod.edu>
Subject: North Pacific: High Seas Analysis
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Date: Thu, 6 Jan 2022 16:34:22 +0000
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260 
FZPN01 KWBC 061634
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
ISSUED BY NATIONAL WEATHER SERVICE HONOLULU HI 
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC JAN 06. 
24 HOUR FORECAST VALID 1200 UTC JAN 07. 
48 HOUR FORECAST VALID 1200 UTC JAN 08. 

.WARNINGS. 

...STORM WARNING... 
.LOW 53N177W 977 MB MOVING NW 25 KT. WITHIN 300 NM N AND NW 
QUADRANTS WINDS 35 TO 50 KT. SEAS 18 TO 29 FT. ELSEWHERE FROM 
53N TO 60N BETWEEN 160W AND 168E AND WITHIN 180 NM E SEMICIRCLE 
AND 360 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 22 FT. 
.24 HOUR FORECAST LOW NW OF AREA 56N167E 990 MB...WITH 
ASSOCIATED CONDITIONS AS DESCRIBED WITH LOW 51N180W BELOW.
.48 HOUR FORECAST LOW AND CONDITIONS NW OF AREA. 

...STORM WARNING... 
.LOW 40N162E 987 MB MOVING SE 20 KT THEN TURNING E AFTER 12 
HOURS. WITHIN 420 NM S AND 360 NM SW QUADRANTS WINDS 40 TO 55 
KT. SEAS 24 TO 34 FT...HIGHEST NEAR 38N160E. ELSEWHERE WITHIN 
660 NM S AND W SEMICIRCLES WINDS 25 TO 40 KT. SEAS 14 TO 28 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW 
39N177W DESCRIBED BELOW.

...STORM WARNING...
.LOW 44N169E 979 MB MOVING SE 25 KT THEN TURNING MORE NE AFTER 
24 HOURS. WITHIN 300 NM SW SEMICIRCLE AND 360 NM NW QUADRANT 
WINDS 25 TO 40 KT. SEAS 12 TO 19 FT.
.24 HOUR FORECAST LOW 39N177W 981 MB. WITHIN 540 NM S AND 360 NM 
SW QUADRANTS WINDS 35 TO 50 KT. SEAS 17 TO 29 FT. ELSEWHERE FROM 
30N TO 39N BETWEEN 166W AND 170E AND WITHIN W AND 360 NM NW 
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 24 FT. 
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY COMPLEX LOW 
42N150W BELOW. 

...STORM WARNING... 
.LOW 43N139W 1002 MB MOVING NE 25 KT. WITHIN 420 NM S AND 240 NM 
SE QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 13 FT. ELSEWHERE 
WITHIN 660 NM SE SEMICIRCLE AND 360 NM SW QUADRANT WINDS 20 TO 
30 KT. SEAS 8 TO 12 FT. 
.18 HOUR FORECAST LOW 45N129W 990 MB. WITHIN 180 NM S AND SW 
QUADRANTS WINDS 35 TO 50 KT. SEAS 15 TO 24 FT. ELSEWHERE WITHIN 
420 NM SE SEMICIRCLE AND 240 NM SW QUADRANTS WINDS 30 TO 45 KT. 
SEAS 10 TO 18 FT.
.24 HOUR FORECAST LOW 49N124W 987 MB. FROM 43N TO 47N E OF 128W 
WINDS 35 TO 50 KT. SEAS 14 TO 24 FT. ELSEWHERE FROM 42N TO 48N E 
OF 131W WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW INLAND. FROM 35N TO 52N E OF 134W WINDS 
LESS THAN 25 KT. SEAS 9 TO 12 FT IN MIXED SWELL.

...STORM WARNING...
.24 HOUR FORECAST LOW W OF AREA 35N158E 995 MB. FROM 30N TO 35N 
W OF 163E WINDS 25 TO 40 KT. SEAS 12 TO 17 FT.
.48 HOUR FORECAST LOW 38N178W 990 MB. FROM 33N TO 38N BETWEEN 
174W AND 175E WINDS 35 TO 50 KT. SEAS 15 TO 26 FT. ELSEWHERE 
FROM 30N TO 39N BETWEEN 172W AND 174E WINDS 25 TO 40 KT. SEAS 12 
TO 23 FT. 

...GALE WARNING... 
.LOW 45N175W 974 MB MOVING NW 15 KT. WITHIN 420 NM E AND 240 NM 
S QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 51N180W 979 MB. WITHIN 540 NM N QUADRANT 
WINDS 25 TO 40 KT. SEAS 9 TO 19 FT.
.48 HOUR FORECAST LOW 50N166W 968 MB. WITHIN 420 NM NE AND 360 
NM SW QUADRANTS WINDS 30 TO 40 KT. SEAS 14 TTO 21 FT. ELSEWHERE 
WITHIN 600 NM NE...240 NM SE AND 600 NM NW QUADRANTS WINDS 20 TO 
30 KT. SEAS 8 TO 17 FT. 

...GALE WARNING... 
.LOW 53N156W 997 MB MOVING NW 30 KT. WITHIN 360 NM NE AND 480 NM 
NW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 20 FT...HIGHEST NEAR 
55N156W. ELSEWHERE WITHIN 600 NM NE...240 NM SW AND 600 NM NW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT IN MIXED SWELL. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 

...GALE WARNING... 
.LOW 50N137W 989 MB MOVING SE 15 KT. WITHIN 300 NM NE...480 NM 
SE...240 NM S...SW AND 300 NM NW QUADRANTS WINDS 30 TO 45 KT. 
SEAS 10 TO 18 FT. ELSEWHERE WITHIN 420 NM NE...660 NM SE...420 
NM S AND 600 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT 
IN MIXED SWELL. 
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 45N130W 
DESCRIBED ABOVE. 

...GALE WARNING... 
.48 HOUR FORECAST NEW LOW 41N152W 982 MB. FROM 31N TO 45N 
BETWEEN 143W AND 153W AND BETWEEN 420 NM AND 960 NM SW 
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 15 TO 24 FT. ELSEWHERE WITHIN 
780 NM NE...720 NM SE...1260 NM SW AND 1200 NM W QUADRANTS WINDS 
20 TO 30 KT. SEAS 8 TO 20 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. 

.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 1200 UTC THU JAN 06.
24 HOUR FORECAST VALID 1200 UTC FRI JAN 07.
48 HOUR FORECAST VALID 1200 UTC SAT JAN 08.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.SE OF A LINE FROM 30N129W TO 25N140W TO ANOTHER LINE FROM 
30N116W TO 22N114W TO 10N125W TO 06N140W  WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW TO N SWELL.
.24 HOUR FORECAST FROM 06N TO 14N BETWEEN 129W AND 137W...FROM 
09 TO 15N BETWEEN 119W AND 125W...AND FROM 11N TO 19N BETWEEN 
114W AND 118W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW TO N 
SWELL.
.48 HOUR FORECAST  FROM 11N TO 13N W OF 137W WINDS 20 KT OR 
LESS. SEAS 8 FT IN NW TO N SWELL.  

.12 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.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.42 HOUR FORECAST N OF 25N W OF 138W WINDS 20 KT OR LESS. SEAS 8 
FT IN NW SWELL.
.48 HOUR FORECAST N OF 24N W OF 137W 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 1500 UTC THU JAN 6...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1009 MB LOW PRESSURE LOCATED 
OVER NORTHERN COLOMBIA NEAR 10N75W TO 05N80W TO 07N90W TO 
07N105W. THE ITCZ CONTINUES FROM 07N105W TO 09N120W TO BEYOND 
07N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS NOTED 
FROM 08N TO 11N BETWEEN 125W AND 135W.

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


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