High Seas Forecast
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FZPN02 KWBC 232325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC THU MAR 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAR 23.
24 HOUR FORECAST VALID 1800 UTC MAR 24.
48 HOUR FORECAST VALID 1800 UTC MAR 25.

.WARNINGS.

...STORM WARNING...
.LOW 41N173E 964 MB MOVING NE 15 KT. OVER FORECAST WATERS WITHIN
480 NM SW AND 540 NM S QUADRANTS WINDS 40 TO 55 KT. SEAS 20 TO
44 FT. ELSEWHERE WITHIN 720 NM NE...1020 NM SE...840 NM SW AND
660 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 34 FT.
.24 HOUR FORECAST LOW 46N177E 964 MB. FROM 34N TO 45N BETWEEN
173W AND 167E WINDS 40 TO 50 KT. SEAS 22 TO 40 FT. ELSEWHERE
WITHIN 1020 NM NE AND 1200 NM SE QUADRANTS AND 840 NM W
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 30 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 49N176E 975 MB. N
OF 42N AND W OF 170W...AND FROM 35N TO 47N BETWEEN 155W AND 170W
AND FROM 50N TO 55N BETWEEN 155W AND 170W WINDS 25 TO 40 KT.
SEAS 12 TO 30 FT...HIGHEST NEAR 44N172W.

...STORM WARNING...
.30 HOUR FORECAST LOW 37N162E 998 MB. OVER FORECAST WATERS
WITHIN 480 NM S AND SE QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 17
FT.
.42 HOUR FORECAST LOW 40N171E 987 MB. WITHIN 360 NM S AND SE
QUADRANTS WINDS 40 TO 50 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW 42N176E 980 MB. WITHIN 360 NM S SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 14 TO 28 FT. ELSEWHERE OVER FORECAST
WATERS WITHIN 600 NM SE AND 840 NM SW QUADRANTS WINDS 25 TO 40
KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 43N145W 1000 MB MOVING E 20 KT
AND SECOND CENTER 46N137W 988 MB MOVING NE 15 KT. WITHIN 420 NM
S AND SW QUADRANTS OF FIRST CENTER...180 NM NW AND 240 NM SE
SEMICIRCLES OF SECOND CENTER...AND 180 NM E OF A FRONT FROM
49N132W TO 42N130W TO 37N133W TO 32N145W WINDS 25 TO 40 KT. SEAS
10 TO 21 FT...HIGHEST S OF FIRST LOW. ELSEWHERE WITHIN 300 NM N
AND 420 NM W QUADRANTS OF FIRST CENTER AND 480 NM S QUADRANT OF
SECOND CENTER AND 240 NM E AND SE OF FRONT WINDS 20 TO 30 KT.
SEAS 8 TO 16 FT.
.06 HOUR FORECAST LOW 47N135W 988 MB. WITHIN 240 NM S AND SW
QUADRANTS AND 120 NM E OF A FRONT FROM 52N132W TO 44N127W TO
36N132W TO 32N141W WINDS 30 TO 45 KT. SEAS 10 TO 19 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 52N133W 988 MB.
WITHIN 240 NM W...300 NM SE AND 360 NM S QUADRANTS WINDS 25 TO
35 KT. SEAS 9 TO 16 FT. ELSEWHERE WITHIN 240 NM NW...420 NM W
AND 720 NM S QUADRANTS AND 120 NM SE OF A FRONT FROM 38N124W TO
31N130W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND WITH CONDITIONS
DIMINISHED.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 48N149W 990 MB. FRONT TO EXTEND FROM
LOW TO 46N143W TO 39N142W TO 32N152W. WITHIN 240 NM S AND SW
QUADRANTS AND 240 NM NE AND E OF FRONT WINDS 25 TO 35 KT. SEAS 8
TO 13 FT. ELSEWHERE FROM 32N TO 51N BETWEEN 136W AND 155W WINDS
20 TO 30 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF THE 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.

.LOW 59N146W 1002 MB NEARLY STATIONARY. FROM 56N TO 60N BETWEEN
149W AND 153W NW WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

.LOW 54N145W 1002 MB MOVING SE 05 KT. WITHIN 180 NM W AND 360 NM
S QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

.FROM 30N TO 35N E OF 121W NW WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS
NE AND N OF A LINE FROM 61N177W TO 58N173W TO 58N171W.
.24 HOUR FORECAST LITTLE CNANGE.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE AND N OF A
LINE FROM 60N179W TO 56N172W TO 56N168W.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 30N TO 42N
BETWEEN 169W AND 177W AND FROM 41N TO 45N BETWEEN 170E AND 177E.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM N AND NE OF A LINE
FROM 46N179E TO 46N169W TO 41N163W AND WITHIN 240 NM E OF A LINE
FROM 41N163W TO 35N165W TO 30N168W.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM E AND SE OF A LINE
FROM 44N145W TO 39N146W TO 34N150W AND FROM 47N TO 52N BETWEEN
167W AND 176E.

.HIGH 62N171W 1023 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 47N162W 1018 MB MOVING SE 35 KT.
.24 HOUR FORECAST HIGH 40N145W 1022 MB.
.48 HOUR FORECAST HIGH 37N129W 1026 MB.

.HIGH 33N158W 1023 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 32N147W 1027 MB.
.48 HOUR FORECAST HIGH 30N135W 1028 MB.

.48 HOUR FORECAST HIGH 31N167W 1023 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 THU MAR 23.
24 HOUR FORECAST VALID 1800 UTC FRI MAR 24.
48 HOUR FORECAST VALID 1800 UTC SAT MAR 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.DISSIPATING COLD FRONT FROM 24.5N111W TO 19N120W. WITHIN AREA
BOUNDED BY 30N117W TO 22N109W TO 10N122W TO 07N140W TO 13N140W TO
20N119W TO 30N117W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
ELSEWHERE WITHIN AREA BOUNDED BY 30N124W TO 30N115W TO 21N108W TO
05N123W TO 05N140W TO 20N140W TO 30N124W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. FROM 06N TO 11N W OF
134W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN
AREA BOUNDED BY 29N114W TO 20N110 TO 02N122W TO 04N140W TO
19N140W TO 21N125W TO 29N114W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 08N TO 13N W OF 136W NE WINDS 20 TO 25
KT. SEAS 9 TO 10 FT. ELSEWHERE FROM 03N TO 22N W OF 120W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE...SW...AND NW SWELL.

.GULF OF CALIFORNIA S OF 27N NW TO N WINDS 20 TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST GULF OF CALIFORNIA FROM 25.5N TO 28N WITHIN 45
NM OF SHORE OF MAINLAND MEXICO NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W TO 13N96W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.21 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10N TO 11N E OF 88W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.03 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST FROM 10.5N TO 11.5N E OF 87W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST COLD FRONT APPROACHING 30N140W FROM NW. W OF A
LINE FROM 30N137W TO 29N140W WINDS 20 KT OR LESS. SEAS TO 8 FT IN
NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N135W TO 28N140W. W OF A LINE
FROM 30N132W TO 28N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N123W TO 26N136W.
N OF 22N W OF A LINE FROM 30N127W TO 22N135W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN NW SWELL.

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

CONVECTION VALID AT 2100 UTC THU MAR 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ AXIS EXTENDS FROM 06N135W TO 05N140W. NO SIGNIFICANT
CONVECTION.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC MAR 23 2017.
24 HOUR FORECAST VALID 1800 UTC MAR 24 2017.
48 HOUR FORECAST VALID 1800 UTC MAR 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N180W 22N170E 19N160E MOVING E 20 KT N OF 25N AND SE 10
KT ELSEWHERE. WINDS 20 TO 30 KT N OF LINE 30N172W 24N177E
30N160E. ISOLATED MODERATE TSTMS WITHIN 60 NM OF LINE 30N176W
27N179W.
.24 HOUR FORECAST FRONT 30N170W 27N175W 23N180W 19N170E. SW
WINDS 20 TO 25 KT NE OF LINE 30N163W 28N170W 30N170W.
.48 HOUR FORECAST FRONT 30N158W 25N170W. WINDS DIMINISHED TO 20
KT OR LESS.

.FRONT 30N151W 29N159W 30N165W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT 28N140W 28N148W.
.48 HOUR FORECAST FRONT MOVED E OF AREA.

.36 HOUR FORECAST FRONT NEAR 30N160E. SW WINDS 20 TO 30 KT N OF
LINE 30N171E 28N160E.
.48 HOUR FORECAST FRONT 30N169E 27N160E. SW WINDS 20 TO 25 KT NE
OF LINE 30N178E 28N170E 30N169E.

.ITCZ 06N140W 05N150W 06N160W 03N172W 04N177E 02N165E. SCATTERED
MODERATE TSTMS WITHIN 120 NM N OF ITCZ E OF 162W AND WITHIN 90
NM OF ITCZ W OF 175E.

.24 HOUR FORECAST NEW HIGH 26N167E 1019 MB.
.48 HOUR FORECAST HIGH MOVED N OF AREA.

.RIDGE 26N140W 27N159W 21N175W 17N165E 18N160E MOVING NE 10 KT
AND ERODING FROM THE W.

.NE WINDS 20 TO 25 KT E OF LINE 06N140W 06N160W 10N160W 13N151W
12N140W.
.24 HOUR FORECAST NE WINDS 20 TO 25 KT E OF LINE 06N140W 08N170W
13N150W 12N140W.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT BOUNDED BY 18N150W
16N140W 06N140W 05N150W 06N160E 12N160E 18N150W.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 20 TO 30 FT N OF LINE 30N176E 24N167E 30N162E...SEAS 8 TO
20 FT ELSEWHERE NW OF LINE 30N175W 18N160E. SEAS 8 TO 10 FT E OF
LINE 05N140W 03N170W 10N180W 20N140W. SEAS 8 TO 9 FT N OF LINE
30N150W 28N159W 30N161W.
.24 HOUR FORECAST SEAS 12 TO 21 FT N OF LINE 30N169W 15N175E
30N165E...SEAS 8 TO 12 FT ELSEWHERE NW OF LINE 30N165W 10N175E
15N160E. SEAS 8 TO 10 FT E OF LINE 05N140W 05N175E 20N140W AND
NE OF LINE 18N140W 15N150W 20N152W.
.48 HOUR FORECAST SEAS 12 TO 17 FT N OF LINE 30N158W 08N170W
09N178W 30N178E...SEAS 8 TO 12 FT ELSEWHERE E OF 170E.

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

$$
.HONOLULU FORECASTER.



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