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NOAA>NWS>NCEP>OPC>Marine>Pacific>High Seas>East and Central North Pacific High Seas Forecast

East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 261725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC TUE SEP 26 2017

CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 26. 
24 HOUR FORECAST VALID 1200 UTC SEP 27. 
48 HOUR FORECAST VALID 1200 UTC SEP 28. 

.WARNINGS. 

...GALE WARNING... 
.LOW 55N149W 992 MB DRIFTING W. FRONT EXTENDS FROM THE LOW TO 
57N143W TO 54N133W. OVER FORECAST WATERS WITHIN 120 NM N AND NW 
OF THE FRONT WINDS 25 TO 35 KT. SEAS TO 11 FT. ELSEWHERE WITHIN 
180 NM N OF THE FRONT AND 300 NM E OF A LINE FROM 56N141W TO 
36N152W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED BELOW 
WITH LOW 54N150W. 

...GALE WARNING...
.LOW 48N153W 995 MB MOVING NE 15 KT. WITHIN 180 NM SW SEMICIRCLE 
WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 54N150W 990 MB. 
BETWEEN 120 NM AND 360 NM SE QUADRANT...AND FROM 54N TO 59N 
BETWEEN 134W AND 140W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. ALSO 
WITHIN 780 NM SE...300 NM SW AND 240 NM NW QUADRANTS WINDS 20 TO 
30 KT. SEAS TO 12 FT...HIGHEST SE.
.48 HOUR FORECAST LOW 58N150W 993 MB. WITHIN 300 NM SE 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING... 
.LOW 36N170E 1004 MB MOVING NE 10 KT. FROM 36N TO 40N BETWEEN 
167E AND 178W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. ELSEWHERE FROM 
31N TO 41N BETWEEN 165E AND 173W WINDS TO 25 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST LOW 37N173E 1000 MB. WITHIN 300 NM S QUADRANT 
AND FROM 37N TO 41N BETWEEN 170E AND 177W WINDS 25 TO 40 KT. 
SEAS 9 TO 18 FT. ELSEWHERE WITHIN 360 NM S SEMICIRCLE...540 NM 
NE AND 300 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.  
.48 HOUR FORECAST LOW 38N178W 999 MB. FROM 33N TO 42N BETWEEN 
178E AND 166W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.  

...GALE WARNING... 
.LOW 33N162E 1004 MB MOVING NE 20 KT. WITHIN 120 NM S QUADRANT 
WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE 
WITH LOW 37N173E.

.SYNOPSIS AND FORECAST. 

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS CURRENTLY IN A HEIGHTENED 
STATE OF UNREST. MARINERS TRAVELING IN THE VICINITY OF BOGOSLOF 
VOLCANO ARE URGED TO EXERCISE CAUTION. IF MARINERS ENCOUNTER ANY 
VOLCANIC ASH...REPORT THE OBSERVATION TO THE OCEAN PREDICTION 
CENTER BY CALLING 301-683-1520. 

.OVER FORECAST WATERS FROM 34N TO 42W BETWEEN 123W AND 128W AREA 
OF N WINDS TO 25 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST CONDITIONS DIMINISHED. 

.COMPLEX LOW WITH MEAN CENTER 54N164W 1004 MB MOVING SE 10 KT. 
WITHIN 420 NM W SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST COMBINED LOW 51N161W 1002 MB. WITHIN 420 NM SW 
SEMICIRCLE WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 49N150W 1004 MB. WITHIN 420 NM S 
SEMICIRCLE WINDS TO 25 KT. SEAS TO 10 FT.

.48 HOUR FORECAST WITHIN 300 NM SW OF A LINE FROM 59N162W TO 
53N157W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 9 FT.

.48 HOUR FORECAST OVER FORECAST WATERS N OF 64N W OF 166W AREA 
OF N WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST 
WATERS FROM 46N TO 55N BETWEEN 130W AND 147W. 
.24 HOUR FORECAST DENSE FOG FROM 47N TO 52N BETWEEN 129W AND 
138W...AND WITHIN 120 NM NE OF A LINE FROM 57N145W TO 54N138W. 
.48 HOUR FORECAST DENSE FOG FROM 48N TO 51N BETWEEN 129W AND 
132W.

.HIGH 39N135W 1024 MB MOVING SW 15 KT. 
.24 HOUR FORECAST HIGH 33N139W 1020 MB. 
.48 HOUR FORECAST HIGH 31N140W 1019 MB. 

.HIGH 49N169E 1029 MB MOVING NE 10 KT. 
.24 HOUR FORECAST HIGH 51N173E 1027 MB. 
.48 HOUR FORECAST HIGH 50N174E 1030 MB. 

.24 HOUR FORECAST NEW HIGH 37N160W 1020 MB. 
.48 HOUR FORECAST HIGH 36N150W 1020 MB. 

.FORECASTER REINHART. 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 TUE SEP 26.
24 HOUR FORECAST VALID 1200 UTC WED SEP 27.
48 HOUR FORECAST VALID 1200 UTC THU SEP 28.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 13N125W 1008 MB. WITHIN AREA BOUNDED BY 11N130W 
TO 16N120W TO 10N120W TO 11N130W SW WINDS 20 TO 25 KT. SEAS 8 TO
11 FT.
.24 HOUR FORECAST LOW PRES NEAR 14N117W 1009 MB. WITHIN AREA 
BOUNDED BY 10N132W TO 14N117W TO 10N117W TO 10N132W SW WINDS 20 
TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES NEAR 15N115W 1010 MB. FROM 07N TO 12N
BETWEEN 120W AND 140W WINDS 20 KT OR LESS. SEAS 8 FT PRIMARILY 
IN SW SWELL.

.FROM 09N TO 11N BETWEEN 98W AND 105W WINDS 20 KT OR LESS. SEAS 9
FT IN SW SWELL.
.24 HOUR FORECAST FROM 09N TO 11N BETWEEN 95W AND 105W WINDS 20
KT OR LESS. SEAS TO 9 FT IN SW SWELL.
.36 HOUR FORECAST 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 1500 UTC TUE SEP 26...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM LOW PRES 1006 MB S OF THE GULF OF 
TEHUANTEPEC NEAR 15N94W TO LOW PRES 1008 MB NEAR 13N125W TO 
BEYOND 10N140W. NUMEROUS MODERATE TO ISOLATED STRONG NOTED FROM 
13N TO 16N BETWEEN 92W AND 96W...AND FROM 12N TO 14N BETWEEN 
120W AND 125W. SCATTERED MODERATE FROM 12N TO 14N BETWEEN 100W 
AND 103W. 

.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC SEP 26 2017.
24 HOUR FORECAST VALID 1200 UTC SEP 27 2017.
48 HOUR FORECAST VALID 1200 UTC SEP 28 2017.

.WARNINGS. 

.NONE. 

.SYNOPSIS AND FORECAST. 

.LOW 1010 MB 11N145W NEARLY STATIONARY. TROUGH 11N140W THROUGH 
LOW TO 09N155W 11N163W. ISOLATED STRONG TSTMS WITHIN 120 NM OF 
TROUGH. 
.24 HOUR FORECAST LOW DISSIPATED. 


.COLD FRONT 30N161W 28N165W 27N171W MOVING ESE 15 KT. 
.24 HOUR FORECAST FRONT 30N157W 27N163W 25N170W. 
.48 HOUR FORECAST FRONT 30N150W 28N156W 24N169W. 

.COLD FRONT JUST W OF AREA. WINDS SW 20 TO 30 KT N OF 27N W OF 
172E. SEAS 8 TO 10 FT NW OF LINE 30N164E 28N160E. ISOLATED 
MODERATE TO STRONG TSTMS NW OF A LINE FROM 30N162E TO 28N160E. 
.24 HOUR FORECAST FRONT 30N164E 28N160E. WINDS SW 20 TO 25 KT N 
OF 29N BETWEEN 165E AND 175E. SEAS 8 TO 11 FT NW OF LINE FROM 
30N170E 28N160E. 
.48 HOUR FORECAST FRONT 30N174E 28N168E 26N160E. WINDS 
DIMINISHED TO 20 KT OR LESS. SEAS SUBSIDED TO LESS THAN 8 FT. 

.TROUGH 18N150W 21N154W 25N155W MOVING NNW SLOWLY. 
.24 HOUR FORECAST TROUGH DISSIPATED. 

.HIGH 26N179W 1017 MB MOVING ENE 15 KT. RIDGE 21N166W THROUGH 
HIGHT TO 21N160E. 
.24 HOUR FORECAST HIGH 28N177W 1018 MB. 
.48 HOUR FORECAST HIGH 28N172W 1018 MB. 

.RIDGE 30N143W 26N151W MOVING NE SLOWLY. 

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

.ITCZ 12N172W 10N179E 12N169E 11N160E. SCATTERED MODERATE TO 
STRONG TSTMS WITHIN 360 NM EITHER SIDE OF ITCZ BETWEEN 163W AND 
177W. ISOLATED MODERATE TSTMS WITHIN 240 NM EITHER SIDE OF ITCZ 
W OF 177W. 

$$ 
.HONOLULU FORECASTERS.


NOAA/ National Weather Service
National Centers for Environmental Prediction
NOAA Center for Weather and Climate Prediction (NCWCP)
Ocean Prediction Center
Mr. Darin Figurskey
Chief, Ocean Forecast Branch
NCWCP, W/NP41
5830 University Research Court
College Park, Maryland 20740-3818

Phone: 301-683-1520
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Page last modified:  Monday, July 25, 2016 12:55:46 UTC