High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 202325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SAT JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 JAN 20.
24 HOUR FORECAST VALID 1800 UTC JAN 21.
48 HOUR FORECAST VALID 1800 UTC JAN 22.

.WARNINGS.

...STORM WARNING...
.LOW 41N144W 1008 MB MOVING E 35 KT. FRONT EXTENDS FROM 53N132W
TO 48N129W TO LOW TO 36N157W. WITHIN 240 NM E AND SE OF FRONT
WINDS 30 TO 45 KT. SEAS 12 TO 23 FT...EXCEPT N OF 50N 8 TO 14
FT. ELSEWHERE OVER FORECAST WATERS WITHIN 420 NM SE AND S OF
FRONT WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.18 HOUR FORECAST FRONT TO EXTEND FROM 49N126W TO 42N129W TO
38N135W. WITHIN 120 NM E AND SE OF FRONT WINDS 40 TO 50 KT. SEAS
16 TO 27 FT.
.24 HOUR FORECAST LOW DISSIPATED. FRONT TO EXTEND FROM 44N125W
TO 38N134W TO 34N145W. WITHIN 180 NM E AND SE OF FRONT WINDS 25
TO 40 KT. SEAS 12 TO 22 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 41N145W BELOW.

...STORM WARNING...
.30 HOUR FORECAST LOW 37N162E 1007 MB. FROM 33N TO 40N BETWEEN
160E AND 172E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.42 HOUR FORECAST LOW 37N167E 1004 MB. WITHIN 180 NM N AND NW
QUADRANTS WINDS 35 TO 50 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST LOW 37N172E 1000 MB. WITHIN 240 NM NW
SEMICIRCLE WINDS 40 TO 50 KT. SEAS 15 TO 22 FT. ELSEWHERE OVER
FORECAST WATERS S OF A LINE FROM 40N160E TO 42N174E TO 36N175W
WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.LOW 58N148W 998 MB NEARLY STATIONARY. BETWEEN 120 NM AND 600 NM
W QUADRANT WINDS 30 TO 45 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
58N145W BELOW.

...GALE WARNING...
.LOW 50N166E 980 MB MOVING NW 15 KT. OVER FORECAST WATERS WITHIN
540 NM S AND SW AND 720 NM E AND NE QUADRANTS WINDS 30 TO 45 KT.
SEAS 16 TO 28 FT. ELSEWHERE WITHIN 780 NM S AND 840 NM E AND NE
QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO 23 FT.
.24 HOUR FORECAST LOW NW OF AREA 56N161E 992 MB. FRONT TO EXTEND
FROM 55N171E TO 46N172W. WITHIN 540 NM S QUADRANT AND 240 NM NE
OF FRONT N OF 50N WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. ELSEWHERE
WITHIN 780 NM S QUADRANT AND 420 NM NE OF FRONT...EXCEPT 300 NM
NE AND E OF FRONT S OF 51N WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW WELL NW OF AREA. N OF 47N W OF 171E WINDS
20 TO 30 KT. SEAS 9 TO 14 FT.

...GALE WARNING...
.LOW 56N140W 994 MB MOVING NW 10 KT. WITHIN 120 NM NW AND 180 NM
NE QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 58N145W 989 MB. BETWEEN 180 NM AND 720 NM
W QUADRANT WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 57N145W 992 MB.
BETWEEN 300 NM AND 840 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 8
TO 17 FT. ELSEWHERE FROM 47N TO 60N BETWEEN 133W AND 150W WINDS
20 TO 30 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.LOW 50N144W 987 MB MOVING NE 15 KT. WITHIN 420 NM S AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 14 TO 26 FT. ELSEWHERE WITHIN
360 NM NW QUADRANT AND FROM 43N TO 50N BETWEEN 160W AND A LINE
FROM 43N137W TO 50N130W WINDS 20 TO 30 KT. SEAS 10 TO 21 FT.
.24 HOUR FORECAST LOW 53N137W 988 MB. WITHIN 660 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 23 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH
COMPLEX LOW ABOVE.

...GALE WARNING...
.LOW 42N174W 1008 MB MOVING NE 15 KT. WITHIN 300 NM E AND NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 10 TO 17 FT.
.24 HOUR FORECAST LOW 44N165W 1006 MB. WITHIN 240 NM E...300 NM
N QUADRANTS AND 420 NM SE SEMICIRCLES WINDS 20 TO 30 KT. SEAS 9
TO 16 FT.
.48 HOUR FORECAST LOW 43N157W 1004 MB. WITHIN 240 NM N...300 NM
W AND 360 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 17 FT.
ELSEWHERE WITHIN 480 NM W SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8
TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER FORECAST WATERS N OF A
LINE FROM 57N156W TO 58N168W TO 63N173W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 55N154W TO 54N159W TO 56N164W TO 63N173W.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS FROM 30N TO 38N E OF 129W AREA OF N TO NW
WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST FROM 30N TO 34N E OF 125W AREA OF NW WINDS TO
25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 30N TO 35N BETWEEN 119W AND 125W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 12 FT.

.48 HOUR FORECAST NEW LOW 41N145W 1004 MB. FROM 33N TO 42N
BETWEEN 134W AND 153W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.HIGH 34N134W 1032 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 32N128W 1028 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 43N163W 1026 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 40N149W 1022 MB.
.48 HOUR FORECAST HIGH 39N127W 1028 MB.

.HIGH 61N175W 1034 MB NEARLY STATIONARY WILL MOVE S 15 KT AFTER
24 HOURS.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH 55N175W 1032 MB.

.24 HOUR FORECAST HIGH 42N170E 1022 MB.
.48 HOUR FORECAST HIGH 47N176E 1030 MB.

.FORECASTER KOSIER. 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 SAT JAN 20.
24 HOUR FORECAST VALID 1800 UTC SUN JAN 21.
48 HOUR FORECAST VALID 1800 UTC MON JAN 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 FT. S OF 10N
BETWEEN 92W AND 100W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE
AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.DISSIPATING COLD FRONT FROM 27N114W TO 19N131W THEN DISSIPATING
STATIONARY FRONT TO 18N140W. FROM 11N TO 25N W OF 125W NE TO E
WINDS 20 TO 25 KT. SEAS 9 TO 14 FT. N OF FRONT E OF 118W NW TO N
WINDS 20 TO 25 KT. SEAS 10 TO 13 FT. WITHIN 180 NM N OF FRONT
BETWEEN 118W AND 125W NE WINDS 20 TO 25 KT. SEAS 11 TO 13 FT.
ELSEWHERE NW OF FRONT WINDS 20 KT OR LESS. SEAS 11 TO 13 FT IN
NW SWELL. REMAINDER OPEN WATERS N OF 05N W OF 100W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST FRONTS DISSIPATED. FROM 10N TO 22N W OF 122W
NE WINDS 20 TO 25 KT. SEAS 9 TO 13 FT. ELSEWHERE W OF LINE
30N116W TO 10N100W TO 03N100W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 11N TO 20N W OF 122W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 13 FT. ELSEWHERE N OF 07N W OF 110W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N87W...INCLUDING GULF OF
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA COLD FRONT FROM 30N113W TO 29N113W. N OF 30N
NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N109W TO
24N110W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.30 HOUR FORECAST GULF OF CALIFORNIA FROM 23.5N TO 27.5N NW
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA FROM 23N TO 28N 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 SAT JAN 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N78W TO 05N84W TO 07N95W. ITCZ FROM 07N95W
TO 07N110W TO 09N120W THEN RESUMES FROM 09N127W TO BEYOND
08N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM N OF
ITCZ BETWEEN 100W AND 111W. SCATTERED MODERATE ISOLATED STRONG
FROM 08N TO 13N BETWEEN 111W AND 125W.

.FORECASTER AL. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC JAN 20 2018.
24 HOUR FORECAST VALID 1800 UTC JAN 21 2018.
48 HOUR FORECAST VALID 1800 UTC JAN 22 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW JUST W OF FORECAST AREA NEAR 28N156E MOVING E SLOWLY.
ISOLATED MODERATE TSTMS N OF 28N W OF 175E.
.24 HOUR FORECAST LOW NEAR 29N163E 1008 MB. COLD FRONT FROM LOW
TO 24N160E. WINDS INCREASING TO NW TO N 20 TO 30 KT OVER
FORECAST WATERS W AND NW OF FRONT.
.48 HOUR FORECAST LOW JUST N OF FORECAST AREA NEAR 32N177E 1002
MB. COLD FRONT FROM LOW TO 26N170E TO 20N160E. WIND NE TO NW 20
TO 25 KT N OF 26N WITHIN 420 NM W OF FRONT.

.STATIONARY FRONT FROM 18N140W TO 18N151W.

.STATIONARY FRONT FROM 30N179E TO 28N175E TO 28N168E.
.24 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 23N163W TO 26N160E TO 30N160W. TROUGH MOVING NE 15
KT N OF 26N AND DISSIPATING S OF 26N. ISOLATED MODERATE TSTMS
WITHIN 150 NM EITHER SIDE OF A LINE FROM 30N160W TO 20N173W.
.24 HOUR FORECAST DEVELOPING COLD FRONT FROM 30N156W TO 26N162W.
.48 HOUR FORECAST FRONT FROM 30N153W TO 26N162W.

.TROUGH FROM 24N178E TO 27N179W TO 29N175W MOVING NW 10 KT.
.24 HOUR FORECAST TROUGH FROM 25N171E TO 28N179E TO 30N174W.
.48 HOUR FORECAST TROUGH MERGED WITH COLD FRONT DESCRIBED ABOVE.
ASSOCIATED WINDS INCLUDED WITH COLD FRONT DESCRIBED ABOVE.

.RIDGE FROM 30N144W TO 26N156W.
.24 HOUR FORECAST RIDGE FROM 30N140W TO 28N153W.

.RIDGE BUILDING OVER FORECAST AREA.
.48 HOUR FORECAST RIDGE FROM 26N169W TO 19N177E.

.OTHERWISE WINDS E TO NE 20 TO 30 KT WITHIN A POLYGON BOUND BY
26N140W 08N140W 08N170E 14N179W 24N160W 26N140W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 30 KT WITHIN A POLYGON
BOUND 24N140W 10N140W 08N179W 18N170W 24N140W
.48 HOURS FORECAST WINDS E TO NE 20 TO 25 KT WITHIN A POLYGON
BOUND BY 24N140W 10N140W 10N175W 18N170W 24N140W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 16 FT WITHIN 240 NM EITHER SIDE OF A LINE FROM
20N140W TO 14N154W...AND ALSO NW OF A LINE FROM 30N177W TO
23N173E. SEAS 8 TO 12 FT ELSEWHERE WITHIN A POLYGON BOUND BY
30N160E 30N140W 06N140W 04N160W 12N171E 21N168W 20N155W 29N170W
18N173E 18N160E 30N160E.
.24 HOUR FORECAST SEAS 12 TO 14 FT N OF 26N BETWEEN 179E AND
167W. SEAS 8 TO 12 FT ELSEWHERE OVER FORECAST WATERS N OF A LINE
FROM 04N140W 04N175E 20N160E.
.48 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 04N140W
04N175E 20N160E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 06N140W TO 08N151W TO 05N164W TO 07N173W TO 06N177E.
ISOLATED MODERATE TSTMS WITHIN 300 NM N OF...AND 150 NM S OF
LINE OF CONVERGENCE.

.OTHERWISE ISOLATED MODERATE TSTMS S OF 12N W OF 177E.

$$

.FORECASTER BEDAL. HONOLULU HI.


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