East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 132325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC WED DEC 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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. 

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 

SYNOPSIS VALID 1800 UTC DEC 13. 
24 HOUR FORECAST VALID 1800 UTC DEC 14. 
48 HOUR FORECAST VALID 1800 UTC DEC 15. 

.WARNINGS. 

...STORM WARNING... 
.LOW 39N163E 999 MB MOVING NE 45 KT AND INTENSIFYING. OVER 
FORECAST WATERS WITHIN 360 NM S AND SW QUADRANTS WINDS 20 TO 30 
KT. SEAS 9 TO 15 FT. 
.12 HOUR FORECAST LOW 42N177E 993 MB. FROM 38N TO 42N BETWEEN 
179E AND 173E WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. 
.24 HOUR FORECAST LOW 47N173W 984 MB. FROM 42N TO 47N BETWEEN 
170W AND 176W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.36 HOUR FORECAST LOW 53N166W 971 MB. WITHIN 180 NM SE 
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 15 TO 22 FT. ELSEWHERE FROM 
48N TO 56N BETWEEN 159W AND 170W AND WITHIN 300 NM E OF A FRONT 
FROM LOW TO 50N160W TO 40N161W WINDS 25 TO 40 KT. SEAS 10 TO 18 
FT...EXCEPT IN BERING SEA 8 TO 14 FT.
.48 HOUR FORECAST LOW 57N168W 969 MB. FRONT TO EXTEND FROM LOW 
TO 59N161W TO 53N150W. FROM 55N TO 61N BETWEEN 163W AND 172W AND 
WITHIN 180 NM N AND E OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 17 
FT.

...GALE WARNING... 
.LOW 59N154W 992 MB MOVING NW 30 KT. FRONT EXTENDS FROM 60N149W 
TO 59N144W TO 55N142W. OVER FORECAST WATERS BETWEEN THE FRONT 
AND 132W WINDS 30 TO 40 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 67N170W 994 MB. WITHIN 240 NM S QUADRANT 
WINDS TO 25 KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LOW AND CONDITIONS MOVED NW OF AREA. 

...GALE WARNING... 
.COMPLEX LOW WITH MAIN LOW 50N143W 1000 MB MOVING N 25 KT. FRONT 
EXTENDS FROM 55N142W TO LOW CENTER TO 43N143W TO 35N142W TO 
30N143W. WITHIN 300 NM E OF FRONT N OF 40N WINDS 25 TO 40 KT. 
SEAS 14 TO 22 FT. ELSEWHERE BETWEEN THE FRONT AND 131W N OF 42N 
AND WITHIN 300 NM E OF FRONT S OF 42N AND WITHIN 300 NM W OF 
FRONT FROM 37N TO 43N WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 60N143W 996 MB. FRONT TO EXTEND FROM LOW 
TO 48N133W. WITHIN 180 NM E OF FRONT FROM 52N TO 55N WINDS 25 TO 
35 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 300 NM SE QUADRANT AND 
WITHIN 240 NM E OF FRONT WINDS TO 25 KT. SEAS 9 TO 13 FT. 
.48 HOUR FORECAST LOW MOVED INLAND AND ASSOCIATED CONDITIONS 
DIMINISHED. 

...GALE WARNING... 
.COMPLEX LOW WITH MAIN CENTER NEAR 48N163E 979 MB MOVING NE 25 
KT AND A SECOND LOW CENTER 52N163E 980 MB MOVING SE 10 KT. FRONT 
EXTENDS FROM SECOND LOW TO 54N170E TO 54N178E TO 49N175W. OVER 
FORECAST WATERS FROM 44N TO 48N W OF 167E WINDS 30 TO 45 KT. 
SEAS 18 TO 27 FT. ALSO WITHIN 120 NM N OF FRONT W OF 178E WINDS 
25 TO 40 KT. SEAS 9 TO 17 FT.
.24 HOUR FORECAST LOW 51N177E 974 MB. FRONT TO EXTEND FROM 
56N177E TO 54N170W TO 37N160W. FROM 56N TO 59N W OF 174W AND 
WITHIN 360 NM S SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 23 
FT...EXCEPT N OF 56N 8 TO 16 FT.
.48 HOUR FORECAST LOW 53N177W 969 MB. EXCEPT WHERE PREVIOUSLY 
NOTED WITHIN 360 NM N AND NW AND 540 NM SW AND 780 NM S 
QUADRANTS WINDS 30 TO 45 KT. SEAS 14 TO 22 FT.

...GALE WARNING... 
.COMPLEX LOW WITH MAIN LOW 37N178E 1006 MB MOVING NE 30 KT. 
FRONT EXTENDS FROM LOW TO 36N170E TO 32N160E. WITHIN 300 NM S 
AND SE QUADRANTS AND WITHIN 120 NM SE OF FRONT N OF 30N WINDS 25 
TO 35 KT. SEAS 9 TO 13 FT. 
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH NEW 
LOW 39N175E BELOW.

...GALE WARNING... 
.24 HOUR FORECAST NEW LOW 39N175E 995 MB. WITHIN 540 NM S 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 45N163W 992 MB. EXCEPT WHERE PREVIOUSLY 
NOTED WITHIN 540 NM SE SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 
22 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 32N TO 43N BETWEEN 120W AND 127W AREA OF 
N TO NW WINDS LESS THAN 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 36N TO 42N BETWEEN 123W AND 126W AREA OF 
N TO NW WINDS 25 TO 35 KT. SEAS 10 TO 17 FT. ELSEWHERE E OF A 
LINE FROM 43N127W TP 37N132W TO 30N133W WINDS 20 TO 30 KT. SEAS 
8 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS 
W AND NW OF A LINE FROM 60N175W TO 64N171W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE 
FROM 59N170W TO 63N165W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF 
ALASKA. 

.SYNOPSIS AND FORECAST. 

.LOW 50N158W 992 MB MOVING NE 15 KT. WITHIN 300 NM W AND 360 NM 
S AND SE QUADRANTS AND WITHIN 240 NM SW OF A LINE FROM LOW 
CENTER TO 62N166W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT...HIGHEST S 
OF 47N.
.24 HOUR FORECAST LOW 53N150W 999 MB. WITHIN 360 NM S AND SE 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 
.48 HOUR FORECAST LOW 58N139W 1012 MB. FROM 54N TO 58N E OF 141W 
WINDS TO 25 KT. SEAS TO 11 FT.

.48 HOUR FORECAST FROM 30N TO 36N BETWEEN 140W AND 154W AREA OF 
NE WINDS TO 25 KT. SEAS TO 11 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 57N 
BETWEEN 134W AND 143W AND FROM 35N TO 40N BETWEEN 180W AND 171E. 
.24 HOUR FORECAST DENSE FOG FROM 44N TO 52N BETWEEN 131W AND 
134W...FROM 40N TO 47N BETWEEN 162W AND 172W AND WITHIN 90 NM OF 
38N175W.
.48 HOUR FORECAST DENSE FOG WITHIN 360 NM SE OF A LINE FROM 
54N153W TO 43N163W. 

.HIGH 37N130W 1027 MB MOVING W 05 KT. 
.24 HOUR FORECAST HIGH 37N133W 1026 MB. 
.48 HOUR FORECAST HIGH DISSIPATED. 

.24 HOUR FORECAST NEW HIGH 40N151W 1029 MB. 
.48 HOUR FORECAST HIGH 41N138W 1036 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 1800 UTC WED DEC 13.
24 HOUR FORECAST VALID 1800 UTC THU DEC 14.
48 HOUR FORECAST VALID 1800 UTC FRI DEC 15.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 45 NM OF LINE FROM 16N95W TO 14N95W TO 12.5N97W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 13 FT. ELSEWHERE FROM 08N TO 13N BETWEEN 94W AND 102W WINDS 
20 KT OR LESS. SEAS TO 10 FT IN NE SWELL. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

.FROM 10N TO 12N E OF 88W...INCLUDING GULF OF PAPAGAYO...NE 
WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 08N TO 11N BETWEEN 88W AND 
91W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE SWELL.
.24 HOUR FORECAST FROM 10N TO 12N E OF 88W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 07N TO 10N 
BETWEEN 88W AND 97W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE 
SWELL. 
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.W OF LINE FROM 30N135W TO 22N140W AND S OF 21N W OF 120W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST W OF LINE FROM 30N132W TO 15N140W WINDS 20 KT 
OR LESS. SEAS 10 TO 13 FT IN NW SWELL...HIGHEST NEAR 30N140W. 
ELSEWHERE W OF LINE FROM 30N121W TO 20N128W TO 18N119W TO 
10N118W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
PRIMARILY IN NW SWELL. 
.48 HOUR FORECAST FROM 15N TO 22N W OF 135W NE TO E WINDS 20 TO 
25 KT. SEAS 10 TO 13 FT. ELSEWHERE W OF LINE FROM 30N116W TO 
00N128W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN NW 
SWELL. 

.GULF OF CALIFORNIA 30 HOUR FORECAST N OF 30N NW WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST N OF 29N NW WINDS 20 TO 25 KT. SEAS TO 8 FT. 

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

CONVECTION VALID AT 2100 UTC WED DEC 13...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 06N77W TO 05N96W TO 10N115W TO BEYOND 11N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 08N TO 14N BETWEEN 114W 
AND 127W.

.FORECASTER AL. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC DEC 13 2017.
24 HOUR FORECAST VALID 1800 UTC DEC 14 2017.
48 HOUR FORECAST VALID 1800 UTC DEC 15 2017.

.WARNINGS. 

.NONE. 

.SYNOPSIS AND FORECAST. 

.FRONT FROM 30N143W TO 24N148W TO 20N153W TO 16N167W MOVING E 15 
KT N OF 24N...AND SE 10 KT S OF 24N. TROUGH FROM 21N151W TO 
16N153W NEARLY STATIONARY. SW WINDS 20 TO 25 KT WITHIN 120 NM E 
OF FRONT N OF 24N. SCATTERED MODERATE TO STRONG TSTMS WITHIN 90 
NM OF FRONT N OF 24N. 
.24 HOUR FORECAST FRONT TRANSITIONED TO TROUGH FROM 30N143W TO 
22N147W TO 15N148W. NE WINDS 20 TO 25 KT BETWEEN TROUGH AND 
153W. 
.48 HOUR FORECAST TROUGH FROM 30N149W TO 20N150W TO 15N148W. NE 
WINDS 20 TO 30 KT BETWEEN TROUGH AND 165W N OF 20N. SE WINDS 20 
TO 25 KT E OF TROUGH. 

.FRONT JUST NW OF AREA NEAR 30N160E NEARLY STATIONARY. SW WINDS 
20 TO 25 KT N OF 28N W OF 163E. 
.24 HOUR FORECAST FRONT FROM 30N167E TO 25N160E. WINDS 20 TO 30 
KT N OF FRONT AND WITHIN 300 NM E OF FRONT. 
.48 HOUR FORECAST FRONT FROM 30N180E TO 28N170E TO 25N160E. 
ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS. 

.NE TO E WINDS 20 TO 25 KT FROM 06N TO 21N BETWEEN 160W AND 
170E. 
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 12N TO 26N 
BETWEEN 153W AND 160W...AND FROM 06N TO 22N BETWEEN 160W AND 
175E. 
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 21N 
BETWEEN 165W AND 170E. 

.HIGH 29N174W 1023 MB MOVING E 15 KT. RIDGES FROM HIGH TO 
23N152W AND FROM HIGH TO 26N170E TO 24N160E. 
.24 HOUR FORECAST HIGH 29N162W 1025 MB. 
.48 HOUR FORECAST HIGH MOVED N OF AREA. 

.RIDGE FROM 25N140W TO 22N146W MOVING N SLOWLY AND ERODING FROM 
THE W. 

.SEAS 12 TO 21 FT IN AREA BOUNDED BY 30N172W 30N141W 20N155W 
11N180E 19N175E 30N172W. SEAS 8 TO 12 FT ELSEWHERE IN AREA 
BOUNDED BY 30N178E 30N140W 26N140W 06N170W 09N160E 20N160E 
30N178E. SEAS 8 TO 10 FT FROM 10N TO 18N E OF 147W. 
.24 HOUR FORECAST SEAS 12 TO 15 FT IN AREA BOUNDED BY 30N155W 
30N140W 21N140W 08N165W 08N180E 18N180E 30N155W. SEAS LESS THAN 
8 FT N OF 25N BETWEEN 170W AND 175E...S OF 25N W OF 175E...AND S 
OF 02N E OF 175E. SEAS 8 TO 12 FT REST OF AREA. 
.48 HOUR FORECAST SEAS 8 TO 13 FT E OF A LINE FROM 30N160W TO 
08N165E TO 00N177E. SEAS 8 TO 10 FT NW OF A LINE FROM 30N178W TO 
22N160E. 

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

.ITCZ FROM 11N140W TO 10N150W TO 06N180E TO 08N166E. SCATTERED 
MODERATE TSTMS WITHIN 120 NM OF ITCZ W OF 180E. ISOLATED 
MODERATE TSTMS WITHIN 150 NM OF ITCZ E OF 150W...AND WITHIN 90 
NM OF ITCZ BETWEEN 150W AND 180E. 

$$ 

.FORECASTER WROE. HONOLULU HI.