High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 211725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SUN JAN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JAN 21.
24 HOUR FORECAST VALID 1200 UTC JAN 22.
48 HOUR FORECAST VALID 1200 UTC JAN 23.

.WARNINGS.

...STORM WARNING...
.LOW 53N137W 988 MB MOVING NW 15 KT. FRONT EXTENDS FROM 49N126W
TO 42N129W TO 36N143W. WITHIN 120 NM E AND SE OF FRONT N OF 39N
WINDS 40 TO 55 KT. SEAS 16 TO 27 FT. ELSEWHERE WITHIN 240 NM E
AND SE OF FRONT...WITHIN 240 NM NE QUADRANT AND BETWEEN 180 NM
AND 720 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 10 TO 21 FT.
.24 HOUR FORECAST LOW 58N144W 993 MB. OVER FORECAST WATERS E OF
A LINE FROM 45N143W TO 59N145W WINDS 20 TO 30 KT. SEAS 8 TO 16
FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...STORM WARNING...
.24 HOUR FORECAST LOW 38N169E 1008 MB. FROM 30N TO 40N BETWEEN
160E AND 171E WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.36 HOUR FORECAST LOW 36N175E 1002 MB. WITHIN 180 NM N AND 240
NM W QUADRANTS WINDS 35 TO 50 KT. SEAS 12 TO 21 FT.
.48 HOUR FORECAST LOW 37N175W 996 MB. WITHIN 300 NM E QUADRANT
AND 240 NM N SEMICIRCLE WINDS 40 TO 50 KT. SEAS 14 TO 24 FT.
ELSEWHERE FROM 30N TO 42N BETWEEN 164W AND 173E WINDS 25 TO 40
KT. SEAS 9 TO 18 FT.

...STORM WARNING...
.48 HOUR FORECAST LOW W OF AREA 44N151E 949 MB. OVER FORECAST
WATERS W OF A LINE FROM 38N164E TO 47N163E WINDS 40 TO 50 KT.
SEAS 13 TO 21 FT. ELSEWHERE FROM 35N TO 47N W OF 167E WINDS 25
TO 40 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW 55N152W 995 MB MOVING SE 05 KT. WITHIN 360 NM S...420 NM W
AND 540 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 54N148W 992 MB. BETWEEN 240 NM AND 780 NM
W QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE WITHIN
300 NM NW AND 360 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14
FT.
.48 HOUR FORECAST LOW 54N147W 995 MB. WITHIN 660 NM W AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 17 FT.

...GALE WARNING...
.LOW NW OF AREA 55N161E 984 MB MOVING N 15 KT. OVER FORECAST
WATERS WITHIN 360 NM S QUADRANT AND FROM 52N TO 58N W OF 178W
WINDS 30 TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE WITHIN 600 NM SE
QUADRANT AND 420 NM NE OF A LINE FROM 54N169E TO 48N177W WINDS
20 TO 30 KT. SEAS 9 TO 17 FT.
.24 HOUR FORECAST LOW DISSIPATED NW OF AREA. N OF 40N W OF 170E
AND WITHIN 120 NM NE OF A LINE FROM 57N176E TO 51N178E TO
47N176W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST N OF 50N BETWEEN 177W AND 179E WINDS TO 25 KT.
SEAS TO 10 FT.

...GALE WARNING...
.LOW 45N170W 1009 MB MOVING SE 20 KT. WITHIN 300 NM E AND NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 10 TO 17 FT.
.24 HOUR FORECAST LOW 43N158W 1003 MB. WITHIN 300 NM S AND 480
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST NEW LOW 44N143W 997 MB. WITHIN 600 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.LOW 34N157W 1015 MB MOVING NE 25 KT. WITHIN 180 NM OF LOW WINDS
LESS THAN 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 40N148W 1007 MB. WITHIN 300 NM S AND 480
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.30 HOUR FORECAST LOW 42N145W 1001 MB. WITHIN 480 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW 48N136W 986 MB. WITHIN 540 NM E SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 10 TO 20 FT. ELSEWHERE WITHIN 780 NM S
QUADRANT 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 57N155W 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 126W AREA OF N TO NW
WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST FROM 30N TO 39N E OF 129W WINDS TO 25 KT. SEAS
8 TO 15 FT WITH NW SWELL.
.48 HOUR FORECAST FROM 30N TO 35N BETWEEN 119W AND 124W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 12 FT.

.LOW 30N165E 1008 MB MOVING NE 20 KT. FROM 30N TO 34N BETWEEN
162E AND 172E WINDS 20 TO 30 KT. SEAS 9 TO 13 FT.
.24 HOUR FORECAST LOW 32N173E 1007 MB. OVER FORECAST WATERS
WITHIN 600 NN E AND NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13
FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
37N175W DESCRIBED IN WARNINGS SECTION ABOVE.

.HIGH 32N130W 1029 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 41N154W 1024 MB MOVING SE 40 KT.
.24 HOUR FORECAST HIGH 38N131W 1027 MB.
.48 HOUR FORECAST HIGH DISSIPATED INLAND.

.HIGH 60N175W 1033 MB MOVING S 10 KT.
.24 HOUR FORECAST HIGH 57N175W 1032 MB.
.48 HOUR FORECAST HIGH 52N173W 1035 MB.

.HIGH 33N176W 1021 MB MOVING NE 15 KT.
.24 HOUR FORECAST HIGH 37N170W 1023 MB.
.48 HOUR FORECAST HIGH 37N160W 1026 MB.

.HIGH 40N165E 1021 MB MOVING NE 25 KT.
.24 HOUR FORECAST HIGH 48N174E 1026 MB.
.48 HOUR FORECAST HIGH 48N176E 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 1200 UTC SUN JAN 21.
24 HOUR FORECAST VALID 1200 UTC MON JAN 22.
48 HOUR FORECAST VALID 1200 UTC TUE JAN 23.

.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 TO 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST N OF 13N BETWEEN 94W AND 96W...INCLUDING GULF
OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.FROM 10N TO 22N W OF 125W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO
14 FT. FROM 22N TO 26N BETWEEN 112W AND 115W N WINDS 20 TO 25
KT. SEAS TO 10 FT. REMAINDER OPEN WATERS N OF 05N W OF 105W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 12N TO 21N W OF 125W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 13 FT. ELSEWHERE W OF LINE 30N116W TO 22N110W
TO 07N110W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST FROM 11N TO 19N W OF 128W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 13 FT. ELSEWHERE W OF LINE FROM 30N116W TO
18N110W TO 10N110W TO 01N140W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL.

.12 HOUR FORECAST GULF OF CALIFORNIA FROM 23.5N TO 28N NW WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA FROM 23N TO 28N NW WINDS 20
TO 25 KT. SEAS TO 8 FT. FROM 21N TO 23N BETWEEN 107W AND 109W NW
TO N WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA N OF 25N NW WINDS 20 TO 25
KT. SEAS TO 8 FT FROM 26N TO 28N.

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

CONVECTION VALID AT 1500 UTC SUN JAN 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N78W TO 05N85W TO 05N95W. ITCZ FROM 05N95W
TO 09.5N120W TO 09N128W TO BEYOND 06N140W. SCATTERED MODERATE
ISOLATED STRONG WITHIN 90 NM N OF TROUGH BETWEEN 78W AND 85W.
SCATTERED MODERATE ISOLATED STRONG FROM 08N TO 15N BETWEEN 113W
AND 118W.

.FORECASTER AL. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1200 UTC JAN 21 2018.
24 HOUR FORECAST VALID 1200 UTC JAN 22 2018.
48 HOUR FORECAST VALID 1200 UTC JAN 23 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW N OF FORECAST AREA NEAR 31N164E 1008 MB. FRONT FROM LOW TO
30N164E TO 24N160E MOVING E 20 KT. SW WINDS 20 TO 30 KT BETWEEN
FRONT AND 172E N OF 28N. ISOLATED MODERATE TSTMS BETWEEN FRONT
AND 175E N OF 26N.
.24 HOUR FORECAST LOW MOVED N OF FORECAST WATERS. ASSOCIATED
FRONT FROM 30N172E TO 24N168E TO 21N160E. SW WINDS 20 TO 25 KT
BETWEEN FRONT AND 175W N OF 27N. ALSO N WINDS 20 TO 25 KT W OF
FRONT.
.48 HOUR FORECAST FRONT 30N174W TO 25N180W TO 18N160E. SW WINDS
20 TO 30 KT BETWEEN FRONT AND 164W N OF 26N. NW AND W WINDS 20
TO 25 KT BETWEEN FRONT AND 173E N OF 28N.

.DISSIPATING FRONT FROM 29N165W TO 28N173W TO 28N180W NEARLY
STATIONARY. ISOLATED TSTMS WITHIN 100 NM OF FRONT.
.24 HOUR FORECAST FRONT DISSIPATED.

.FRONT FROM 30N155W TO 27N160W TO 26N163W MOVING E SLOWLY.
.24 HOUR FORECAST WEAK FRONT FROM 30N151W TO 27N158W.
.48 HOUR FORECAST WEAK FRONT FROM 30N148W TO 28N152W.

.TROUGH FROM 25N161W TO 22N164W NEARLY STATIONARY AND
DISSIPATING. ISOLATED TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 22N176 TO 11N177E MOVING W 10 KT. ISOLATED TSTMS
WITHIN 120 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N140W TO 27N156W MOVING ENE 10 KT.

.RIDGE FROM 29N180W TO 21N163E MOVING E 20N AND ERODING FROM W.

.48 HOUR FORECAST NEW RIDGE FROM 30N163E TO 28N160E.

.E WINDS 20 TO 30 KT BETWEEN 23N AND 07N E OF 153W...AND BETWEEN
18N AND 07N FROM 153W TO 176W.
.24 HOUR FORECAST E WINDS 25 AND 30 KT BETWEEN 21N AND 10N E OF
153W ...AND BETWEEN 18N AND 09N FROM 153W TO 175W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT BETWEEN 20N AND 10N E OF
157W...AND BETWEEN 17N AND 10N FROM 157W TO 170W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 14 FT N OF A LINE FROM 30N171E TO 28N171E TO 23N179W
TO 30N170W. SEAS 12 TO 13 FT E OF A LINE FROM 21N140W TO 20N151W
TO 09N157W. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 13N160E
TO 03N170W TO 03N140W.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 08N160E TO
02N170W TO 02N140W.
.48 HOUR SEAS 8 TO 10 FT N OF A LINE FROM 30N170E TO 20N162E TO
10N170E TO 10N165W. SEAS 8 TO 12 FT E OF A LINE FROM 30N155W TO
10N170E TO 00N180W...HIGHEST SEAS BETWEEN 18N AND 12N E OF 145W.
ELSEWHERE E OF 180W...SEAS 8 TO 9 FT.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N140W TO 06N160W TO 02N175W. WIDELY SCATTERED
MODERATE TSTMS WITHIN 160 NM OF ITCZ E OF 170W.

$$

.FORECASTER LAU. HONOLULU HI.



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