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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: Fri, 28 Jan 2022 23:07:25 +0000
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475 
FZPN01 KWBC 282306 CCA
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC FRI JAN 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 28. 
24 HOUR FORECAST VALID 1800 UTC JAN 29. 
48 HOUR FORECAST VALID 1800 UTC JAN 30. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.12 HOUR FORECAST RAPIDLY INTENSIFYING LOW 31N178W 992 MB. FROM 
30N TO 34N BETWEEN 170W AND 180W WINDS 25 TO 40 KT. SEAS 11 TO 
18 FT.
.24 HOUR FORECAST LOW 37N172W 975 MB. FROM 34N TO 37N BETWEEN 
168W AND 174W WINDS 50 TO 65 KT. SEAS 14 TO 27 FT. ALSO WITHIN 
120 NM NE AND W...360 NM E...AND 240 NM SE AND S QUADRANTS WINDS 
35 TO 50 KT. SEAS 12 TO 23 FT. ELSEWHERE FROM 30N TO 43N BETWEEN 
162W AND 173W AND WITHIN 240 NM SW AND 180 NM W QUADRANTS WINDS 
25 TO ALSO FROM 30N TO 48N BETWEEN 159W AND 179W WINDS 20 TO 30 
KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST 49N170W 965 MB. FRONT WILL EXTEND FROM CENTER 
TO 50N167W TO 46N161W TO 30N162W. WITHIN 240 NM NE 
SEMICIRCLE...AND 180 NM SE AND W QUADRANTS WINDS 40 TO 55 KT. 
SEAS 17 TO 29 FT...HIGHEST E QUADRANT. ELSEWHERE WITHIN 480 NM 
NW AND NE SEMICIRCLES AND 300 NM SE QUADRANT AND WITHIN 300 NM E 
OF FRONT WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 

...STORM WARNING... 
.LOW 48N178E 968 MB MOVING N 25 KT THEN TURNING MORE NW AFTER 6 
HOURS. FRONT EXTENDS FROM 49N180W TO 47N175W TO 43N173W TO 
34N180W WITHIN 180 NM S AND E SEMICIRCLES WINDS 45 TO 60 KT. 
SEAS 22 TO 36 FT. ELSEWHERE WITHIN 300 NM OF LOW EXCEPT 180 NM 
NW QUADRANT AND 360 NM E QIADRANT WINDS 30 TO 45 KT. SEAS 14 TO 
26 FT...HIGHEST S AND SE OF LOW. ELSEWHERE FROM 41N TO 54N 
BETWEEN 169W AND 170E AND WITHIN 240 NM E AND SE OF FRONT WINDS 
20 TO 30 KT. SEAS 10 TO 21 FT. 
.24 HOUR FORECAST LOW 55N173E 973 MB. WITHIN 180 NM S...240 NM E 
AND 300 NM N QUADRANTS WINDS 40 TO 50 KT. SEAS 19 TO 27 FT. 
ELSEWHERE WITHIN 300 NM SE SEMICIRCLE AND 480 NM NE QUADRANT 
WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 
.48 HOUR FORECAST LOW NW OF AREA 58N161E 989 MB. WITHIN 480 NM 
SE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...STORM WARNING...
.LOW 36N164E 1002 MB MOVING E 25 KT THEN TURNING NE BY 24 HOURS 
AND INTENSIFYING. FROM 30N TO 36N W OF 167E AND WITHIN 180 NM W 
QUADRANT WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST LOW 37N177E 992 MB. FROM 33N TO 37N BETWEEN 
178E AND 170E WINDS 35 TO 50 KT. SEAS 11 TO 22 FT. ELSEWHERE 
FROM 30N TO 37N BETWEEN 179E AND 169E WINDS 25 TO 35 KT. SEAS 10 
TO 15 FT.
.48 HOUR FORECAST LOW 40N172W 980 MB. WITHIN 240 NM S AND 300 NM 
W QUADRANTS WINDS 40 TO 55 KT. SEAS 15 TO 27 FT. ELSEWHERE 
EXCEPT AS DESCRIBED ABOVE WITHIN 360 NM SE AND 540 NM S...480 NM 
SW AND W AND 300 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 
21 FT.

...GALE WARNING... 
.COMPLEX LOW WITH FIRST LOW CENTER 46N146W 997 MB MOVING NE 30 
KT AND A NEW SECOND LOW 52N144W 995 MB MOVING NE 25 KT NEXT 12 
HOURS THEN TURNING MORE NW AFTER 12 HOURS AND THEN LOOPING SW 
AND THEN SE WHILE SLOWING. WITHIN 240 NM SW AND S SEMICIRCLES OF 
FIRST LOW AND WITHIN 240 NM NE AND 360 NM E QUADRANTS OF SECOND 
LOW AND WITHIN  240 NM E OF A FRONT FROM SECOND LOW TO 45N142W 
TO 34N150W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT...HIGHEST NEAR 
43N146W. ELSEWHERE WITHIN 600 NM E AND W AND 840 NM S QUADRANTS 
OF SECOND LOW AND FROM 30N TO 43N BETWEEN 147W AND 159W WINDS 20 
TO 30 KT. SEAS TO 12 FT. 
.24 HOUR FORECAST COMBINED LOW 59N146W 986 MB. E OF A LINE FROM 
55N134W TO 49N130W WINDS 30 TO 45 KT. SEAS 10 TO 16 FT. 
ELSEWHERE WITHIN 360 NM S AND 300 NM W QUADRANTS WINDS 25 TO 40 
KT. SEAS 8 TO 17 FT...HIGHEST S QUADRANT.

...GALE WARNING... 
.LOW 59N149W 986 MB MOVING W 10 KT NEXT 6 HOURS THEN LOOPING S 
AND THEN E. FROM 54N TO 60N BETWEEN 151W AND 158W WINDS 25 TO 40 
KT. SEAS TO 11 FT. ELSEWHERE EXCEPT WHERE NOTED ABOVE WITHIN 600 
NM W AND SW...180 NM NE AND 480 NM SE AND E QUADRANTS WINDS 20 
TO 30 KT. SEAS 8 TO 13 FT...HIGHEST SE QUADRANT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 59N146W 
ABOVE. 

...GALE WARNING... 
.LOW NW OF AREA 53N161E 977 MB DRIFTING SW. N OF 44N W OF 167E 
AND FROM 55N TO 61N W OF 175W WINDS 25 TO 40 KT. SEAS 10 TO 22 
FT...HIGHEST NEAR 58N177E.
.24 HOUR FORECAST LOW 51N160E 993 MB. FROM 47N TO 51N W OF 167E 
WINDS 25 TO 35 KT. SEAS 9 TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS AS DESCRIBED 
WITH LOW NW OF ATREA 58N161E ABOVE.

...GALE WARNING... 
.LOW JUST W OF AREA 40N159E 1003 MB MOVING SE 20 KT. FROM 38N TO 
41N W OF 161E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 39N169E 999 MB. WITHIN 240 NM SW 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 40N172W 
ABOVE.

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 59N152W TO 
55N158W TO 55N163W TO 60N177W. LIGHT TO MODERATE FREEZING SPRAY 
ELSEWHERE N OF A LINE FROM 56N151W TO 54N164W TO 60N179W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE 
FROM 59N152W TO 56N154W TO 56N165W. LIGHT TO MODERATE FREEZING 
SPRAY ELSEWHERE N OF A LINE FROM 55N151W TO 53N163W TO 
59N180W. 
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 57N 
BETWEEN 152W AND 170W AND N OF A LINE FROM 57N170W TO 60N179W. 
LIGHT TO MODERATE FREEZING SPRAY ELSEWHERE N OF A LINE FROM 
58N151W TO 55N155W TO 56N170W TO 59N179W. 

.SYNOPSIS AND FORECAST. 

.SEMISOPOCHNOI VOLCANO AT POSITION 51.6N 179.4E LOCATED 140 
NAUTICAL MILES W OF ADAK ISLAND REMAINS IN A STATE OF UNREST. 
CURRENTLY NO ASH IS IDENTIFIABLE ON SATELLITE IMAGERY BUT WAS 
OBSERVED EARLIER TODAY. LOW LEVEL ASH EMISSIONS ARE POSSIBLE. 
MARINERS SHOULD EXERCISE CAUTION. IF YOU ENCOUNTER VOLCANIC ASH 
OR FLOATING VOLCANIC DEBRIS YOU 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 48N TO 51N 
BETWEEN 143W AND 145W AND FROM 45N TO 51N BETWEEN 178E AND 173E.
.24 HOUR FORECAST DENSE FOG N OF 56N BETWEEN 145W AND 149W AND W 
OF A LINE FROM 58N176W TO 52N173E.
.48 HOUR FORECAST DENSE FOG FROM 54N TO 58N BETWEEN 133W AND 
138W...AND WITHIN 180 NM NE OF A LINE FROM 48N178W TO 
56N174E.

.LOW 38N173E 1002 MB MOVING NE 30 KT. WITHIN 240 NM SE 
SEMICIRCLE WINDS TO 25 KT. SEAS 11 TO 17 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW 37N172W IN 
WARNINGS SECTION.

.24 HOUR FORECAST NW LOW 39N139W 1015 MB. FRONT TO EXTEND FROM 
49N133W TO LOW CENTER TO 30N145W. WITHIN 180 NM E OF FRONT AND 
FROM 30N TO 41N BETWEEN 140W AND 150W WINDS TO 20 30 KT. SEAS TO 
12 FT.
.48 HOUR FORECAST LOW 41N144W 1020 MB. WITHIN 240 NM NW 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT. 

.48 HOUR FORECAST FROM 30N TO 49N W OF 168E AREA OF S WINDS 20 
TO 30 KT. SEAS TO 11 FT. 

.HIGH 35N164W 1024 MOVING NE 25 KT. 
.24 HOUR FORECAST HIGH 39N152W 1026 MB. 
.48 HOUR FORECAST HIGH 44N144W 1030 MB.

.HIGH 36N125W 1027 MB NEARY STATIONARY.
.24 HOUR FORECAST HIGH 36N128W 1026 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.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 28.
24 HOUR FORECAST VALID 1800 UTC SAT JAN 29.
48 HOUR FORECAST VALID 1800 UTC SUN JAN 30.

.WARNINGS.

...GALE WARNING...
.WITHIN 15N94W TO 15N96W TO 16N96W TO 16N95W TO 16N94W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS TO 8 FT. 
.06 HOUR FORECAST WITHIN 15.5N94.5W TO 15.5N95W TO 16N95.5W TO 
16.5N95W TO 16N94W TO 15.5N94.5W...INCLUDING THE GULF OF 
TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 9 FT. FROM 14N TO
15N BETWEEN 93W AND 96W N TO NE WINDS 20 TO 30 KT. SEAS 8 FT. 
.24 HOUR FORECAST WITHIN 13N94W TO 12N95W TO 13N97W TO 16N96W TO 
16N93W TO 13N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 30 TO 45 KT. SEAS 11 TO 19 FT. WITHIN 11N95W TO 10N99W TO 
12N100W TO 16N96W TO 15N93W TO 11N95W NE WINDS 20 TO 30 KT. SEAS 
8 TO 13 FT. 
.48 HOUR FORECAST WITHIN 13N95W TO 13N97W TO 15N97W TO 16N95W TO
15N94W TO 13N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. WITHIN 07N94W TO 07N102W TO 
10N106W TO 14N101W TO 16N94W TO 07N94W WINDS 20 KT OR LESS. SEAS 
8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 27N109W TO 25N111W TO 30N115W TO 32N115W TO 29N112W TO
27N109W...INCLUDING GULF OF CALIFORNIA...NW TO N WINDS 20 TO 30 
KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.06 HOUR FORECAST WITHIN 12N118W TO 11N120W TO 12N123W TO
14N122W TO 14N120W TO 12N118W E WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST WITHIN 13N124W TO 11N128W TO 12N131W TO
15N128W TO 15N125W TO 13N124W E WINDS 20 TO 30 KT. SEAS 8 FT.
.48 HOUR FORECAST WITHIN 15N124W TO 14N134W TO 21N134W TO
23N131W TO 20N125W TO 15N124W E WINDS 20 TO 30 KT. SEAS 8 TO 10 
FT.

.18 HOUR FORECAST WITHIN 11N86W TO 10N86W TO 10N88W TO 11N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST WITHIN 10N86W TO 10N88W TO 11N88W TO 11N86W TO
10N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST WITHIN 10N86W TO 09N87W TO 09N89W TO 11N90W TO
12N86W TO 10N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 2150 UTC FRI JAN 28...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 05N86W TO 05N100W TO 05N106W. ITCZ FROM 
05N106W TO 08N120W TO 07N140W. SCATTERED MODERATE FROM 02N TO 
06N E OF 90W...FROM 07N TO 15N BETWEEN 116W AND 131W...AND FROM 
10N TO 20N W OF 128W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.


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