East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 161725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SUN DEC 16 2018

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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. 

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION 
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE). 

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

PAN PAN 

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

SYNOPSIS VALID 1200 UTC DEC 16. 
24 HOUR FORECAST VALID 1200 UTC DEC 17. 
48 HOUR FORECAST VALID 1200 UTC DEC 18. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING...
.LOW 47N175W 967 MB MOVING E 30 KT. BETWEEN 180 NM AND 480 NM SW 
QUADRANT WINDS 50 TO 65 KT. SEAS 30 TO 44 FT. ELSEWHERE WITHIN 
480 NM SE AND 780 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 17 TO 
34 FT. ALSO WITHIN 480 NM N SEMICIRCLE...AND 1200 NM SE AND 1080 
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 49N150W 971 MB 
AND SECOND CENTER 47N168W 973 MB. BETWEEN 180 NM AND 720 NM SW 
QUADRANT OF SECOND CENTER WINDS 40 TO 55 KT. SEAS 30 TO 44 FT. 
ELSEWHERE WITHIN 1320 NM S SEMICIRCLE AND 900 NM NW QUADRANT OF 
SECOND CENTER WINDS 25 TO 40 KT. SEAS 15 TO 31 FT. ALSO WITHIN 
1080 NM NW...480 NM NE...1560 NM SE AND 1320 NM SW QUADRANTS OF 
SECOND CENTER WINDS TO 25 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 51N145W 961 MB 
AND SECOND CENTER 55N134W 967 MB. WITHIN 360 NM E SEMICIRCLE OF 
FIRST CENTER AND WITHIN 180 NM SE QUADRANT OF SECOND CENTER 
WINDS 35 TO 50 KT. SEAS 15 TO 30 FT. ELSEWHERE WITHIN 960 NM 
NW...600 NM NE...1200 NM SE AND 1500 NM SW QUADRANTS WINDS 25 TO 
40 KT. SEAS 12 TO 25 FT...EXCEPT 17 TO 34 FT IN SW QUADRANT. 
ALSO WITHIN 1200 NM NW...1440 NM SE AND 1680 NM SW QUADRANTS 
WINDS TO 25 KT. SEAS 8 TO 18 FT.

...HURRICANE FORCE WIND WARNING...
.24 HOUR FORECAST FROM 30N TO 50N W OF 165E S WINDS 20 TO 30 KT. 
SEAS TO 11 FT.
.30 HOUR FORECAST FROM 30N TO 52N W OF 167E WINDS 25 TO 40 KT. 
SEAS 10 TO 18 FT.
.36 HOUR FORECAST LOW W OF AREA NEAR 45N158E 973 MB. OVER 
FORECAST WATERS WITHIN 480 NM NE AND 900 NM SE QUADRANTS WINDS 
40 TO 55 KT. SEAS 13 TO 27 FT.
.48 HOUR FORECAST LOW 51N163E 955 MB. WITHIN 180 NM S SEMICIRCLE 
AND 300 NM NE QUADRANT WINDS 50 TO 65 KT. SEAS 16 TO 33 FT. 
ELSEWHERE WITHIN 420 NM NE...660 NM SE AND 360 NM SW QUADRANTS 
WINDS 35 TO 50 KT. SEAS 14 TO 29 FT. ALSO WITHIN 600 NM 
NE...1320 NM SE AND 540 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 
11 TO 22 FT.

...GALE WARNING...
.LOW 55N145W 966 MB MOVING NW 15 KT. BETWEEN 180 NM AND 360 NM N 
SEMICIRCLE...AND BETWEEN 360 NM AND 1500 NM SE QUADRANT...AND 
BETWEEN 300 NM AND 1200 NM SW QUADRANT WINDS 30 TO 45 KT. SEAS 
13 TO 27 FT...EXCEPT 18 TO 38 FT IN SW QUADRANT. ELSEWHERE 
WITHIN 360 NM N SEMICIRCLE...AND 1680 NM SE AND 1380 NM SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 11 TO 23 FT...HIGHEST IN SW 
QUADRANT.
.24 HOUR FORECAST LOW INLAND 60N150W 972 MB. WITHIN 120 NM NE OF 
A LINE FROM LOW CENTER TO 58N140W TO 54N134W WINDS 25 TO 40 KT. 
SEAS 10 TO 18 FT. ELSEWHERE WITHIN 900 NM SE AND 360 NM SW 
QUADRANTS WINDS TO 25 KT. SEAS 11 TO 23 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE FROM 58N160W TO 
62N175W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 
FROM 58N160W TO 61N176W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 
FROM 58N160W TO 61N177W.

.SYNOPSIS AND FORECAST. 

.EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 30N TO 60N 
BETWEEN 116W AND 160E WINDS TO 25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 
30N TO 60N BETWEEN 116W AND 160W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 
30N TO 59N BETWEEN 116W AND 178E WINDS TO 25 KT. SEAS 8 TO 15 FT.

.24 HOUR FORECAST HIGH 54N178W 1012 MB.
.48 HOUR FORECAST HIGH 46N173W 1032 MB.

.24 HOUR FORECAST HIGH 36N170E 1030 MB.
.48 HOUR FORECAST HIGH 36N178W 1032 MB.

.48 HOUR FORECAST HIGH 32N126W 1028 MB.

.FORECASTER HOLLEY. 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 SUN DEC 16.
24 HOUR FORECAST VALID 1200 UTC MON DEC 17.
48 HOUR FORECAST VALID 1200 UTC TUE DEC 18.

.WARNINGS.

...GALE WARNING...
.WITHIN 45 NM EITHER SIDE OF LINE FROM 16N95W TO
14N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 
KT. SEAS 13 TO 18 FT. ELSEWHERE WITHIN 90 NM EITHER SIDE OF LINE 
FROM 16N95W TO 12N98W N TO NE WINDS 20 TO 30 KT. SEAS 12 TO 15 
FT. REMAINDER OF AREA FROM 08N TO 14N BETWEEN 94W AND 102W WINDS 
20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NE SWELL.
.18 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
40 KT. SEAS 13 TO 16 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF 
LINE FROM 16N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 11 TO 
13 FT. REMAINDER OF AREA FROM 04N TO 14N BETWEEN 93W AND 110W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
35 KT. SEAS 12 TO 16 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF 
LINE FROM 16N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 
14 FT. REMAINDER OF AREA FROM 02N TO 14N BETWEEN 93W AND 111W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.30 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF LINE FROM 16N95W 
TO 12.5N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 30 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 02N TO 14N BETWEEN 
92W AND 112W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.42 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF LINE FROM 16N95W 
TO 13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 01N TO 14N BETWEEN 94W 
AND 112W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS 8 TO 10 FT. FROM 01N TO 13N BETWEEN 94W AND 100W... 
AND ALSO S OF 13N BETWEEN 100W AND 106W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL. 

.SYNOPSIS AND FORECAST.

.WITHIN 45 NM EITHER SIDE OF LINE FROM 11N86W TO 
09N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 30 KT.
SEAS 8 TO 9 FT.
.12 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W 
TO 09N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS 8 FT.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 11N86W 
TO 09N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS 8 FT.  
.48 HOUR FORECAST LITTLE CHANGE.

.COLD FRONT FROM 30N135W TO 28N140W. NW OF FRONT WINDS 20 KT OR 
LESS. SEAS 12 TO 15 FT IN NW SWELL. ELSEWHERE N OF 09N W OF 110W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N127W TO 27N132W 
THEN WEAKENING STATIONARY FRONT TO 26N140W. NW OF LINE FROM 
30N120W TO 23N126W TO 14N140W WINDS 20 KT OR LESS. SEAS 13 TO 18 
FT IN NW SWELL...EXCEPT 17 TO 22 FT IN NW SWELL N OF 25N BETWEEN 
125W AND 135W. ELSEWHERE N OF 05N W OF 112W WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN NW SWELL.
.48 HOUR FORECAST FRONT DISSIPATED. NW OF LINE FROM 23N110W TO 
08N118W TO 00N130W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO 
N SWELL...EXCEPT 14 TO 18 FT IN NW SWELL N OF 24N E OF 125W. 
ELSWHERE N OF 01N W OF 107W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN NW SWELL.

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

CONVECTION VALID AT 1530 UTC SUN DEC 16...

.SCATTERED MODERATE WITHIN 30 NM OF LINE FROM 09N127W TO 
09N130W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 07N78W TO 06N88W. ITCZ FROM 
06N88W TO 04N100W TO 07N118W TO 08N130W TO 09N140W. SCATTERED 
MODERATE WITHIN 30 NM EITHER SIDE OF ITCZ BETWEEN 116W AND 121W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1200 UTC DEC 16 2018.
24 HOUR FORECAST VALID 1200 UTC DEC 17 2018.
48 HOUR FORECAST VALID 1200 UTC DEC 18 2018.

.WARNINGS. 

...GALE WARNING... 
.FRONT 30N177E 26N165E 25N160E MOVING ESE 20 KT. WINDS 20 TO 30 
KT N OF LINE 30N168W 28N170E. SEE SEAS BELOW. 
.24 HOUR FORECAST FRONT 30N162W 25N175E 22N160E. WINDS 20 TO 30 
KT N OF LINE 30N155W 26N180W 22N160E. SEE SEAS BELOW. 
.48 HOUR FORECAST FRONT 30N150W 25N170W 24N175E 30N160E. WINDS 
20 TO 35 KT WITHIN 120 NM N OF FRONT E OF 165W. WINDS 20 TO 30 
KT ELSEWHERE N OF LINE 30N149W 22N172W 22N160E. SEE SEAS BELOW. 

.SYNOPSIS AND FORECAST. 

.FRONT 29N140W 27N151W 28N157W MOVING ESE 15 KT. WINDS 20 TO 25 
KT N OF FRONT. SEE SEAS BELOW. 
.24 HOUR FORECAST DISSIPATING FRONT 25N140W 24N150W. WINDS 
DECREASED TO 20 KT OR LESS. 
.48 HOUR FORECAST FRONT DISSIPATED. 

.TROUGH 03N160E 00N168E NEARLY STATIONARY. ISOLATED MODERATE 
TSTMS S OF 11N W OF 177E. 
.24 HOUR FORECAST TROUGH MOVED W OF AREA. 

.HIGH NEAR 29N158W 1021 MB MOVING E 25 KT. RIDGES FROM HIGH TO 
23N151W 24N140W AND FROM HIGH TO 24N180E 24N170E. 
.24 HOUR FORECAST HIGH NEAR 30N140W 1024 MB. RIDGE FROM HIGH TO 
27N155W 26N175W. 
.48 HOUR FORECAST HIGH MOVED NE OF AREA. RIDGE 29N140W 25N155W 
25N164W. 

.WINDS 20 TO 25 KT N OF LINE 09N160E 07N175E 05N175W 
08N146W...AND S OF LINE 12N160E 18N171E 17N146W. 
.24 HOUR FORECAST WINDS 20 TO 30 KT N OF LINE 09N160E 09N180E 
06N175W 00N173W 00N153W 11N140W...AND S OF LINE 15N160E 18N150W 
15N140W. 
.48 HOUR FORECAST WINDS 20 TO 30 KT N OF LINE 07N160E 04N170E 
07N180E 08N154W...AND S OF LINE 21N160E 22N175W 15N170W 16N160W. 

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA. 

.SEAS 18 TO 26 FT N OF LINE 30N140W 26N156W 30N160W. SEAS 12 TO 
18 FT ELSEWHERE N OF LINE 28N140W 22N162W 30N169W. SEAS 12 TO 14 
FT FROM 05N TO 15N BETWEEN 158W AND 172E. SEAS 8 TO 12 FT 
ELSEHERE N OF E OF LINE 10N160E 00N173E...AND N AND W OF LINE 
09N140W 00N148W. 
.24 HOUR FORECAST SEAS 18 TO21 FT N OF LINE 20N140W 21N144W 
30N145W. SEAS 12 TO 18 FT ELSEWHERE N OF LINE 15N140W 12N150W 
30N155W. SEAS 12 TO 14 FT IN AREA 18N160W 10N158W 08N172W 
18N160W. SEAS 8 TO 12 FT ELSEWHERE N AND E OF LINE 10N160E 
00N175E...AND N AND W OF LINE 10N140W 00N151W. 
.48 HOUR FORECAST SEAS 18 TO 21 FT N OF 28N BETWEEN 157W AND 
167W. SEAS 12 TO 18 FT ELSEWHERE E OF LINE 29N140W 18N148W 
10N148W 07N140W...AND N OF LINE 30N152W 23N170W 24N168E. SEAS 8 
TO 12 FT ELSEWHERE N AND E OF LINE 08N160E 00N174E. 

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. 

.ITCZ 08N140W 08N145W 04N160W 04N174W 02N180W. ISOLATED TO 
SCATTERED MODERATE TSTMS WITHIN 300 NM N OF ITCZ W OF 156W. 

$$ 

.FORECASTER POWELL. HONOLULU HI.