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From: <ldm@weather.cod.edu>
Subject: North Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
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Date: Tue, 11 Jan 2022 22:17:42 +0000
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699 
FZPN01 KWBC 112217
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC TUE JAN 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE). 

SECURITE 

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 1800 UTC JAN 11. 
24 HOUR FORECAST VALID 1800 UTC JAN 12. 
48 HOUR FORECAST VALID 1800 UTC JAN 13. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.COMPLEX LOW WITH MAIN LOW 37N173W 986 MB MOVING NE 35 KT AND 
RAPIDLY INTENSIFYING. SECOND LOW 41N175W 983 MB MOVING NE 30 KT. 
WITHIN 360 NM S AND 300 NM SW QUADRANTS OF MAIN LOW...AND 300 NM 
SW QUADRANT OF SECOND LOW WINDS 35 TO 50 KT. SEAS 12 TO 23 
FT...HIGHEST S QUADRANT. ELSEWHERE FROM 30N TO 40N BETWEEN 165W 
AND 170E...AND 600 NM W QUADRANT OF SECOND LOW WINDS 25 TO 40 
KT. SEAS 9 TO 19 FT. 
.24 HOUR FORECAST COMBINED LOW 45N159W 955 MB. WITHIN 180 NM S 
SEMICIRCLE WINDS 50 TO 65 KT. SEAS 18 TO 36 FT. ELSEWHERE WITHIN 
300 NM SW AND 240 NM SE QUADRANTS WINDS 35 TO 50 KT. SEAS 12 TO 
24 FT. ELSEWHERE FROM 34N TO 53N BETWEEN 168W AND 147W...AND 
WITHIN 360 NM E OF FRONT FROM 34N160W TO 30N166W WINDS 25 TO 40 
KT. SEAS 10 TO 19 FT. 
.48 HOUR FORECAST LOW 53N155W 964 MB. WITHIN 300 NM SE 
QUADRANT...AND FROM 57N TO 60N BETWEEN 144W AND 153W WINDS 35 TO 
50 KT. SEAS 13 TO 26 FT...HIGHEST SE QUADRANT. ELSEWHERE N OF  
48N BETWEEN 165W AND 137W...AND 300 NM E OF FRONT FROM 48N142W 
TO 40N146W TO 33N154W WINDS 25 TO 40 KT. SEAS 9 TO 20 FT. 

...STORM WARNING... 
.LOW 38N146W 997 MB MOVING NE 30 KT. FROM 30N TO 40N BETWEEN 
134W AND 154W WINDS 25 TO 35 KT. SEAS 10 TO 19 FT. 
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 43N136W 1004 MB AND 
SECOND LOW 47N135W 995 MB. FROM 38N TO 51N BETWEEN 125W AND 140W 
WINDS 25 TO 40 KT. SEAS 10TO 21 FT. 
.30 HOUR FORECAST LOW 50N133W 994 MB. WITHIN 240 NM NE QUADRANT 
WINDS 35 TO 50 KT. SEAS 9 TO 15 FT. 
.42 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 47N128W 1007 MB. 
WITHIN 240 NM S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 18 
FT. 
.48 HOUR FORECAST LOW 47N125W 1017 MB. WITHIN 240 NM S AND SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.

...GALE WARNING... 
.LOW 52N153W 989 MB MOVING N 25 KT. WITHIN 240 NM NE QUADRANT 
WINDS 25 TO 35 KT. SEAS 8TO 14 FT. 
.24 HOUR FORECAST LOW INLAND OVER ALASKA NEAR 60N157W 997 MB. 
ASSOCIATED CONDITIONS DIMINISHED.

...GALE WARNING... 
.LOW 53N171W 969 MB DRIFTING SW THEN MOVING SE 10 KT AFTER 24 
HOURS. WITHIN 480 NM N AND 600 NM NW QUADRANTS...AND FROM 48N TO 
53N BETWEEN 168W AND 176E WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. 
.24 HOUR FORECAST LOW 51N173W 982 MB. N OF 45N BETWEEN 173W AND 
174E WINDS 25 TO 35 KT. SEAS 8 TO 18 FT. 
.48 HOUR FORECAST LOW 48N170W 992 MB. WITHIN 300 NM SW QUADRANT 
WINDS 20 TO 30 KT. SEAS 8 TO 16 FT. 

...GALE WARNING... 
.LOW 44N169E 999 MB MOVING SE 20 KT. WITHIN 420 NM S AND SW 
QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED BELOW. 

...GALE WARNING... 
.LOW 48N140W 998 MB MOVING NE 15 KT. WITHIN 480 NM SE QUADRANT 
WINDS 25 TO 35 KT. SEAS 10 TO 17 FT. 
.12 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS 
DIMINISHED. 

...GALE WARNING... 
.24 HOUR FORECAST NEW LOW 43N174W 990 MB. WITHIN 480 NM SW 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. 
.48 HOUR FORECAST LOW 44N156W 988 MB. WITHIN 480 NM SW AND S  
QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. 

...GALE WARNING... 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 43N170E 980 MB 
AND SECOND LOW 38N178E 988 MB. FRONT FROM MAIN LOW TO SECOND LOW 
TO 35N177W TO 30N178W. WITHIN 240 NM W AND SW QUADRANTS OF 
SECOND LOW WINDS 30 TO 45 KT. SEAS 12 TO 23 FT. ELSEWHERE WITHIN 
300 NM W OF FRONT AND 180 NM E OF FRONT S OF SECOND LOW WINDS 25 
TO 40 KT. SEAS 10 TO 19 FT. 

...GALE WARNING... 
.48 HOUR FORECAST FROM 48N TO 52N W OF 165E WINDS 25 TO 40 KT. 
SEAS 12 TO 19 FT. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 56N163W TO 
58N175W TO 59N180W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE 
FROM 58N168W TO 59N179E. 
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE 
FROM 58N168W TO 58N179E. 

.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 50N TO 56N 
BETWEEN 167W AND 174E AND FROM 43N TO 50N BETWEEN 124W AND 137W. 
.24 HOUR FORECAST DENSE FOG N OF 56N BETWEEN 163W AND 178W...AND 
FROM 46N TO 50N BETWEEN 125W AND 135W. 
.48 HOUR FORECAST DENSE FOG N OF 54N BETWEEN 167W AND 
176W...FROM 47N TO 53N BETWEEN 157W AND 164W...AND FROM 44N TO 
51N BETWEEN 169E AND 162E. 

.HIGH 35N127W 1030 MB NEARLY STATIONARY. 
.24 HOUR FORECAST HIGH 35N126W 1025 MB. 
.48 HOUR FORECAST HIGH DISSIPATED. 

.HIGH 37N160E 1017 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH NEAR 30N178E 1016 MB. 
.48 HOUR FORECAST HIGH S OF AREA. 

.24 HOUR FORECAST NEW HIGH 33N140W 1025 MB.
.48 HOUR FORECAST HIGH 40N130W 1031 MB. 

.FORECASTER ROWLAND. 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 TUE JAN 11.
24 HOUR FORECAST VALID 1800 UTC WED JAN 12.
48 HOUR FORECAST VALID 1800 UTC THU JAN 13.

.WARNINGS.

...GALE WARNING...
.WITHIN 13N94.5W TO 13N97W TO 16N96W TO 16N94W TO 14N94W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. 
SEAS 9 TO 16 FT. ELSEWHERE WITHIN 10N93.5W TO 10N103W TO 
13N103.5W TO 15N96W TO 16N93.5W TO 10N93.5W N TO NE WINDS 20 TO 
30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 11N100W TO 13N101W TO 14N98W TO 16N96W 
TO 14N94W TO 11N100W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 10N93W 
TO 06N99W TO 06N103W TO 13N105W TO 14N94W TO 10N93W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 12N95W TO 12N96W TO 16N95W TO 16N94W TO 
14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS 8 TO 10 FT. 

.SYNOPSIS AND FORECAST.

.WITHIN 30N140W TO 30N138W TO 28N140W TO 30N140W. S WINDS 20 TO 
25 KT. SEAS 10 TO 11 FT. ELSEWHERE WITHIN 30N140W TO 30N121W TO 
10N124W TO 07N140W TO 30N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW SWELL. 
.24 HOUR FORECAST COLD FRONT FROM 30N135W TO 27N140W. WITHIN 
24N121W TO 24N117W TO 20N117W TO 20N121W TO 24N121W. NE WINDS 20 
TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 30N140W TO 30N116W 
TO 20N115W TO 05N127W TO 05N140W TO 30N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN W TO NW SWELL.
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N135W TO 
27N140W. WITHIN 30N140W TO 30N124W TO 06N127W TO 05N140W TO 
30N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

.TROUGH FROM 19N116W TO 09N120W. WITHIN 19N121.5W TO 23N117W TO 
17N113W TO 16N121.5W TO 19N121.5W NE TO E WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.24 HOUR FORECAST TROUGH FROM 22N119W TO 10N124W. CONDITIONS 
MERGED.

.WITHIN 27N110W TO 25N111W TO 31N115W TO 31N113W TO 27N110W... 
INCLUDING GULF OF CALIFORNIA...NW WINDS 20 TO 30 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST WITHIN 26N111.5W TO 26N109W TO 25N109W TO 
25N111W TO 26N111.5W...INCLUDING GULF OF CALIFORNIA... NW TO N 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 24N109W TO 23N107W TO 20N111W TO 
23N113W TO 23N107W...INCLUDING GULF OF CALIFORNIA...NW TO N 
WINDS 20 TO 25 KT. SEAS TO 8 FT.

.WITHIN 10N86W TO 09N88W TO 10N89W TO 12N88W TO 11N86W TO
10N86W...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 CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 

.30 HOUR FORECAST WITHIN 19N105W TO 19N106W TO 20N106W TO 
19N105W...INCLUDING NEAR CABO CORRIENTES...NW TO N WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

CONVECTION VALID AT 2015 UTC TUE JAN 11...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 05N89W. ITCZ FROM 05N89W TO 
08N117W. IT RESUMES FROM 08N124W TO 06N140W. SCATTERED MODERATE 
FROM 03N TO 06N BETWEEN 82W AND 99W...AND N OF 07N BETWEEN 112W 
AND 122W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.


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