North Pacific High Seas Forecast

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FZPN01 KWBC 120423
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED FEB 12 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0000 UTC FEB 12. 
24 HOUR FORECAST VALID 0000 UTC FEB 13.
48 HOUR FORECAST VALID 0000 UTC FEB 14.

.WARNINGS.

...STORM WARNING... 
.COMPLEX LOW WITH FIRST LOW 42N154W 1000 MB MOVING E 25 KT AND 
SECOND LOW 41N146W 1004 MB MOVING NE 10 KT. WITHIN 480 NM SE AND
420 NM S QUADRANTS OF SECOND LOW AND WITHIN 600 NM SE AND 660 NM
SW QUADRANTS OF FIRST LOW WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.  
.24 HOUR FORECAST COMBINED LOW 42N140W 984 MB. BETWEEN 60 NM AND
240 NM S...90 NM AND 300 NM SW AND 60 NM AND 240 NM W QUADRANTS
WINDS 40 TO 55 KT. SEAS 18 TO 32 FT...HIGHEST NEAR 40N142W.
ELSEWHERE WITHIN 600 NM NE...1080 NM SE...660 NM S...540 NM SW
AND 300 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 43N129W 991 MB AND 
SECOND LOW 45N127W 992 MB. WITHIN 300 NM S...180 NM SW AND NW
QUADRANTS OF MAIN LOW WINDS 30 TO 40 KT. SEAS 14 TO 25
FT...HIGHEST NEAR 36N130W. ELSEWHERE WITHIN 840 NM SE...720 NM
S...540 NM SW AND 300 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9
TO 18 FT.

...STORM WARNING... 
.LOW NEAR 34N170E 1000 MB MOVING NE 40 KT. FROM 30N TO 35N W OF
164E WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN AN
AREA BOUNDED BY A LINE FROM 30N160E TO 30N178E TO 36N170W TO
40N170W TO 40N160E TO 30N160E WINDS 25 TO 35 KT. SEAS 10 TO 17
FT.  
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 43N170W 992 MB AND
SECOND NEW LOW TO FORM NEAR 33N178W 993 MB. WITHIN 180 NM SE...90
NM S...360 NM SW AND 60 NM W OF SECOND NEW LOW WINDS 35 TO 50 KT.
SEAS 10 TO 20 FT. ELSEWHERE FROM 40N TO 45N BETWEEN 163W AND
174W...FROM 30N TO 40N BETWEEN 160W AND 168W AND WITHIN 300 NM
SE...720 NM SW AND 720 NM NW QUADRANTS OF FIRST LOW WINDS 25 TO
40 KT. SEAS 9 TO 16 FT. 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 42N165W 973 MB AND
SECOND LOW 37N165W 974 MB. WITHIN 420 NM E...360 NM SE...540 NM
SW AND 660 NM NW QUADRANTS OF SECOND LOW WINDS 35 TO 50 KT. SEAS
14 TO 26 FT...HIGHEST NEAR 31N168W. ELSEWHERE WITHIN 600 NM
N...660 NM E...540 NM W AND 720 NM NW QUADRANTS OF FIRST LOW AND
FROM 30N TO 40N BETWEEN 146W AND 178W WINDS 25 TO 40 KT. SEAS 10
TO 20 FT.  

...STORM WARNING...
.30 HOUR FORCECAST COMPLEX LOW W OF THE AREA WITH MAIN LOW
44N154E 979 MB. N OF 31N W OF 163E AND WITHIN 300 NM NW OF A LINE
FROM 48N166E TO 56N178W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.36 HOUR FORECAST COMPLEX LOW W OF AREA WITH MAIN LOW 46N155E 958
MB. FROM 33N TO 48N W OF 163E WINDS 40 TO 55 KT. SEAS 12 TO 27
FT...HIGHEST NEAR 42N160E. 
.48 HOUR FORECAST COMPLEX LOW JUST W OF AREA WITH MAIN LOW
47N159E 950 MB. WITININ 240 NM E AND 660 NM SE QUADRANTS AND
WITHIN 240 NM NE AND E OF A FRONT FROM 50N161E TO 45N168E TO
40N169W AND WITHIN 120 NM E AND SE OF FRONT FROM 40N169W TO
30N161E WINDS 40 TO 55 KT. SEAS 19 TO 31 FT...HIGHEST NEAR
40N160E. ELSEWHERE W AND NW OF A LINE FROM 30N171E TO 45N177E TO
54N169E WINDS 25 TO 40 KT. SEAS 10 TO 22 FT. 

...GALE WARNING... 
.LOW W OF AREA 56N166E 958 MB MOVING NW 15 KT. FROM 45N TO 50N W
OF 165E WINDS 35 TO 45 KT. SEAS 16 TO 24 FT. ELSEWHERE N OF THE
ALEUTIAN ISLANDS N OF 52N BETWEEN 158W AND 167E AND BETWEEN 120
NM AND 960 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 10 TO 20
FT...EXCEPT N OF THE ALEUTIANS E OF 173W SEAS 8 TO 14 FT. 
.24 HOUR FORECAST LOW WELL W OF AREA 58N153E 984 MB. N OF 45N W
OF 180W AND WITHIN 180 NM NW OF A LINE FROM 58N177W TO 61N171W
WINDS 20 TO 30 KT. SEAS 9 TO 17 FT...EXCEPT SEAS TO 10 FT N OF
THE ALEUTIAN ISLANDS E OF 180W. 
.48 HOUR FORECAST LOW WELL W OF AREA AND CONDITIONS DESCRIBED
ABOVE WITH LOW JUST W OF THE AREA 47N159E. 

...GALE WARNING... 
.COMPLEX LOW WITH MAIN LOW 50N146W 1000 MB MOVING NW 10 KT AND
SECOND LOW 44N137W MOVING NE 25 KT THROUGH 12 HOURS THEN TURNING
NW. WITHIN 180 NM N AND NE OF A FRONT FROM THE MAIN LOW TO
46N138W WINDS 35 TO 45 KT. SEAS 12 TO 21 FT...HIGHEST NEAR
52N145W. ELSEWHERE WITHIN 360 NM NE...480 NM SE AND 420 NM NW
QUADRANTS OF SECOND LOW...WITHIN 360 NM NE...420 NM E AND 540 NM
NW QUADRANTS OF MAIN LOW AND FROM 33N TO 40N BETWEEN 126W AND
140W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.  
.24 HOUR FORECAST COMBINED LOW 54N151W 1000 MB. FROM 51N TO 57N
BETWEEN 141W AND 156W WINDS 20 TO 30 KT. SEAS 10 TO 17 FT IN
MIXED SWELL.  
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 54N145W 991 MB. FROM
50N TO 55N BETWEEN 141W AND 151W AND WITHIN 120 NM N AND NE OF A 
LINE FROM 59N149W TO 57N138W WINDS 20 TO 30 KT. SEAS 8 TO 14 
FT...HIGHEST NEAR 52N146W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 60N W OF
171W...N OF 54N BETWEEN 175E AND 172E AND FROM 40N TO 46N BETWEEN
148W AND 157W.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM NE OF A LINE FROM
37N128W TO 41N130W...WITHIN 120 NM W AND NW OF A LINE FROM
53N153W TO 56N152W TO 57N148W AND WITHIN 180 NM N AND NE OF A
LINE FROM 60N174W TO 55N162W.  
.48 HOUR FORECAST DENSE FOG FROM 40N TO 44N BETWEEN 153W AND
161W...WITHIN 120 NM W OF A LINE FROM 47N167W TO 50N168W...WITHIN
60 NM W OF A LINE FROM 52N174W TO 57N178W TO 59N180W AND N OF 45N
W OF 171E.

.48 HOUR FORECAST LIGHT FREEZING SPRAY N AND NE OF A LINE FROM
57N159W TO 61N176W.

.FORECASTER FUTTERMAN. OCEAN PREDICTION CENTER.

NWS 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 0000 UTC WED FEB 12.
24 HOUR FORECAST VALID 0000 UTC THU FEB 13.
48 HOUR FORECAST VALID 0000 UTC FRI FEB 14.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30N116W TO 30N127W TO 26N125W TO 25N119W TO 28N115W TO
30N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 13N130W TO 17N133W TO 16N135W TO 14N135W TO 10N132W TO
10N130W TO 13N130W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
ELSEWHERE WITHIN 19N126W TO 23N140W TO 09N140W TO 14N135W TO 
09N135W TO 11N125W TO 19N126W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 17N135W TO 19N140W TO 08N140W TO 
12N130W TO 17N135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE 
SWELL.
.48 HOUR FORECAST CONDITIONS MERGED WITH AREA TO THE NORTH. 

.WITHIN 11N86W TO 12N87W TO 13N89W TO 11N89W TO 10N88W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...E WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.36 HOUR FORECAST COLD FRONT FROM 30N132W TO 29N140W. WITHIN 
30N125.5W TO 30N136.5W TO 29.5N136W TO 29N128W TO 29.5N126W TO 
30N125.5W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE 
WITHIN 29N129W TO 30N137W TO 27N138W TO 30N140W TO 12N140W TO 
11N139W TO 29N129W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W TO 
NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N128W TO 28N140W. WITHIN 
30N122W TO 27N134W TO 25N136W TO 30N140W TO 12N140W TO 13N137W TO
30N122W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN W TO NW SWELL.

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

CONVECTION VALID AT 0300 UTC WED FEB 12...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH AXIS EXTENDS FROM 07N78W TO 02N96W TO 05N114W.
ITCZ
AXIS EXTENDS FROM 05N114W TO 07N125W TO BEYOND 07N140W. WIDELY 
SCATTERED MODERATE FROM 00N TO 05N BETWEEN 88W AND 111W.
SCATTERED
MODERATE FROM 04N TO 10N BETWEEN 120W AND 130W.



.FORECASTER CHAN. NATIONAL HURRICANE CENTER.

$$