High Seas Forecast
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000
FZPN02 KWBC 220525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC FRI SEP 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 22.
24 HOUR FORECAST VALID 0000 UTC SEP 23.
48 HOUR FORECAST VALID 0000 UTC SEP 24.

.WARNINGS.

...GALE WARNING...
.LOW 59N150W 1003 MB MOVING NE 15 KT. WITHIN 90 NM NE OF A LINE
FROM 59N147W TO 57N140W WINDS 25 TO 35 KT. SEAS TO 8 FT. ALSO
WITHIN 420 NM S AND SE QUADRANTS...AND WITHIN 240 NM SE OF A
LINE FROM 52N150W TO 41N161W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW MOVED INLAND. WITHIN AN AREA BOUNDED BY A
LINE FROM 38N159W TO 51N154W TO 51N138W TO 38N159W AREA OF WINDS
TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST NEW LOW 54N141W 1002 MB. FROM 43N TO 61N
BETWEEN 135W AND 148W WINDS 20 TO 30 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 49N173W 996 MB MOVING NE 15 KT. WITHIN 300 NM S
SEMICIRCLE...AND WITHIN 420 NM W AND NW OF A LINE FROM 49N175W
TO 58N159W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.24 HOUR FORECAST LOW 51N163W 999 MB. WITHIN 300 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. ALSO N OF 48N
BETWEEN 162W AND 173W WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 58N153W 995 MB. WITHIN 420 NM S AND 840 NM
W QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 38N179W 1013 MB MOVING NE 20 KT. FROM 34N TO 39N BETWEEN
176W AND 177E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 41N169W 1007 MB. WITHIN 300 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 44N156W 1003 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 40N178E 1005 MB. WITHIN 540 NM S
QUADRANT WINDS 25 TO 35 KT. SEAS TO 12 FT. ALSO WITHIN 120 NM N
SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 41N171W 1001 MB. WITHIN 480 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT. ALSO WITHIN 360 NM
NW SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS CURRENTLY IN A HEIGHTENED
STATE OF UNREST. MARINERS TRAVELING IN THE VICINITY OF BOGOSLOF
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.

.OVER FORECAST WATERS NE OF A LINE FROM 32N121W TO 41N138W TO
52N134W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST FROM 31N TO 42N BETWEEN 124W AND 132W AND FROM
31N TO 35N BETWEEN 118W AND 121W AREA OF N TO NW WINDS TO 25 KT.
SEAS TO 11 FT.
.48 HOUR FORECAST FROM 36N TO 42N BETWEEN 124W AND 131W AREA OF
N WINDS TO 25 KT. SEAS TO 10 FT.

.LOW 58N157W 1001 MB MOVING NE 10 KT. EXCEPT WHERE NOTED
ABOVE...WITHIN 360 NM S AND SE QUADRANTS WINDS TO 25 KT. SEAS TO
10 FT.
.24 HOUR FORECAST LOW 60N153W 1000 MB. WITHIN 180 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED IN
WARNINGS SECTION ABOVE WITH LOW 54N141W.

.LOW W OF AREA 43N157E 1003 MB MOVING E 20 KT. OVER FORECAST
WATERS W OF A LINE FROM 32N160E TO 35N170E TO 40N170E TO 47N160E
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 41N169E 1008 MB. WITHIN 360 NM SW
SEMICIRCLE...AND 240 NM N QUADRANT WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 39N164W TO 57N151W TO 51N141W TO 43N147W
TO 39N164W...AND WITHIN 120 NM OF 51N172W.
.24 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY A LINE
FROM 41N159W TO 54N153W TO 51N138W TO 43N150W TO 41N159W.
.48 HOUR FORECAST DENSE FOG WITHIN 300 NM SE OF A LINE FROM
53N143W TO 41N164W.

.HIGH 42N145W 1033 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH 42N142W 1029 MB.
.48 HOUR FORECAST HIGH 41N137W 1026 MB.

.HIGH 30N177E 1021 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.24 HOUR FORECAST HIGH 56N174E 1025 MB.
.48 HOUR FORECAST HIGH 53N174E 1024 MB.

.FORECASTER KELLS. 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 0000 UTC FRI SEP 22.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 23.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 17.5N104W 1008 MB. WITHIN 120 NM OF LOW WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED SWELL. SCATTERED SHOWERS AND
THUNDERSTORMS WITHIN 240 NM N AND 75 NM S SEMICIRCLES.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
18N105W 1006 MB. WITHIN 90 NM NE AND 120 NM SW SEMICIRCLES WINDS
20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
18.5N105.5W 1005 MB. WITHIN 90 NM NE AND 120 NM SW SEMICIRCLES
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.FROM 10N TO 14N BETWEEN 99W AND 110W SW TO W WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT. ELSEWHERE WITHIN 180 NM SE OF LINE FROM 15N99W
TO 09N120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE SWELL AND S
TO SW WINDS WAVES. FROM 02N TO 09N BETWEEN 120W AND 135W WINDS
20 KT OR LESS. SEAS TO 8 FT IN SE SWELL AND S WIND WAVES.
.24 HOUR FORECAST FROM 10N TO 13N BETWEEN 100W AND 111W SW WINDS
20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST FROM 09N TO 12.5N BETWEEN 103W AND 117W SW TO
W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 08N TO 14N
BETWEEN 97W AND 119W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SE
SWELL AND SW WIND WAVES.

.POST-TROPICAL REMNANT LOW NORMA NEAR 22N116.5W 1010 MB. WITHIN
120 NM NW QUADRANT WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SWELL.
.24 HOUR FORECAST LOW TO DISSIPATE. CONDITIONS TO MERGE WITH
AREA OF NW SWELL BELOW.

.FROM 14N TO 19N BETWEEN 132W AND 138W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED NE AND SE SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.EXCEPT AS NOTED ABOVE...N OF 20N BETWEEN 117W AND 135W...AND
FROM 21N TO 26N BETWEEN 135W AND 140W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF 20N BETWEEN 117W AND 127W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN MAINLY NW TO N SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA N OF 29.5N SW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0200 UTC FRI SEP 22...

INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 09N74W TO 09N87W TO LOW PRES NEAR 17.5N104W
1008 MB TO 13N107W TO LOW PRES NEAR 10N137W 1010 MB TO BEYOND
11N140W. SCATTERED MODERATE TO STRONG WITHIN 90 NM N AND 120 NM
S OF TROUGH BETWEEN 80W AND 90W...WITHIN 90 NM N AND 180 NM S OF
TROUGH BETWEEN 96W AND 140W.

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0000 UTC SEP 22 2017.
24 HOUR FORECAST VALID 0000 UTC SEP 23 2017.
48 HOUR FORECAST VALID 0000 UTC SEP 24 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N161W 1011 MB MOVING N SLOWLY. TROUGH FROM LOW TO 13N150W
TO 11N140W NEARLY STATIONARY. ISOLATED MODERATE TO LOCALLY
STRONG TSTMS FROM 08N TO 15N BETWEEN 155W AND 160W. ISOLATED
MODERATE TSTMS WITHIN 60 NM OF LINE FROM 15N151W TO
14N154W...AND FROM 09N TO 13N BETWEEN 160W AND 164W.
.24 HOUR FORECAST LOW 14N161W 1010 MB. TROUGH FROM LOW TO
14N150W TO 11N140W.
.48 HOUR FORECAST LOW 14N162W 1011 MB. TROUGH FROM LOW TO
13N150W TO 09N146W TO 12N140W.

.FRONT FROM 30N170W TO 25N180E TO 22N170E TO 21N165E TO 22N160E
NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 120 NM N OF
FRONT W OF 179W.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N173W TO
24N176E.
.48 HOUR FORECAST WEAK TROUGH FROM 29N177W TO 23N174E.

.TROUGH FROM 10N162E TO 08N160E MOVING W 10 KT. SCATTERED
MODERATE TO STRONG TSTMS FROM 05N TO 12N W OF 172E. ISOLATED
MODERATE TSTMS FROM 12N TO 15N BETWEEN 162E AND 167E.
.24 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA.

.TROUGH FROM 13N174W TO 10N175W TO 08N178W MOVING W 10 KT.
ISOLATED MODERATE TSTMS WITHIN 75 NM OF POINT 13N172W...AND FROM
07N TO 10N BETWEEN 165W AND 170W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 30N177E 1021 MB NEARLY STATIONARY. RIDGE FROM HIGH TO
28N160E.
.24 HOUR FORECAST HIGH DISSIPATED. NEW HIGH 28N170E 1020 MB.
.48 HOUR FORECAST HIGH 28N167E 1019 MB.

.RIDGE FROM 30N161W TO 23N174W NEARLY STATIONARY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER ENTIRE FORECAST
AREA.

.ISOLATED MODERATE TSTMS FROM 08N TO 12N BETWEEN 175E AND 179W.

$$

.FORECASTER KINEL. HONOLULU HI.


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