High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 190525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC THU OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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

THE U.S. COAST GUARD IS CURRENTLY EXPERIENCING DEGRADATION IN
IMAGE QUALITY OF ALL HFFAX PRODUCTS. TROUBLESHOOTING OF THE
PROBLEM IS TAKING PLACE.

SECURITE

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

SYNOPSIS VALID 0000 UTC OCT 19.
24 HOUR FORECAST VALID 0000 UTC OCT 20.
48 HOUR FORECAST VALID 0000 UTC OCT 21.

.WARNINGS.

...STORM WARNING...
.LOW 54N138W 971 MB MOVING E 15 KT. BETWEEN 240 NM AND 540 NM W
AND SW QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO 36 FT. ELSEWHERE
WITHIN 300 NM NE AND 1140 NM SW SEMICIRCLES WINDS 25 TO 40 KT.
SEAS 10 TO 26 FT.
.24 HOUR FORECAST LOW 55N132W 984 MB. WITHIN 780 NM W AND 900 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...STORM WARNING...
.LOW 49N163E 981 MB MOVING NE 20 KT. FRONT EXTENDS FROM 52N164E
TO 40N172W. WITHIN 300 NM S QUADRANT WINDS 40 TO 55 KT. SEAS 16
TO 32 FT. ELSEWHERE WITHIN 480 NM S SEMICIRCLE AND WITHIN 240 NM
NE OF THE FRONT WINDS 25 TO 40 KT. SEAS 9 TO 21 FT.
.24 HOUR FORECAST LOW 52N178E 979 MB. WITHIN 480 NM S AND SW
QUADRANTS WINDS 40 TO 50 KT. SEAS 18 TO 35 FT. ELSEWHERE WITHIN
420 NM N AND 660 NM S SEMICIRCLES AND WITHIN 480 NM SE OF FRONT
TO EXTEND FROM 48N161W TO 38N179E WINDS 25 TO 40 KT. SEAS 10 TO
26 FT.
.48 HOUR FORECAST LOW 53N160W 976 MB. WITHIN 900 NM SW QUADRANT
AND FROM 38N TO 44N BETWEEN 164W AND 131W WINDS 30 TO 45 KT.
SEAS 10 TO 32 FT. ELSEWHERE OVER FORECAST WATERS NW OF A LINE
FROM 45N130W TO 35N164W TO 45N170E WINDS 25 TO 40 KT. SEAS 9 TO
25 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 32N TO 35N BETWEEN 119W AND 122W AREA OF
NW WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 31N TO 36N BETWEEN 117W AND 123W AREA OF
NW WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS NW OF A LINE FROM 52N170W TO 57N155W WINDS
20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 46N
BETWEEN 172W AND 172E.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 46N BETWEEN 161W AND
174W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 31N130W 1024 MB MOVING S 10 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.HIGH 42N165W 1034 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 35N156W 1031 MB.
.48 HOUR FORECAST HIGH 33N152W 1029 MB.

.FORECASTER MUSONDA. 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 THU OCT 19.
24 HOUR FORECAST VALID 0000 UTC FRI OCT 20.
48 HOUR FORECAST VALID 0000 UTC SAT OCT 21.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 14.5N95.5W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT.
SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF A LINE
FROM 16N95W TO 13N95.5W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11
FT. REMAINDER OF AREA BOUNDED BY 11N94W TO 08N98W TO 09N101W TO
13N97W TO 16N96W TO 16N94W TO 11N94W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN MIXED NE AND S SWELL.
.18 HOUR FORECAST WITHIN AREA BOUNDED BY 16N95W TO 13.5N95.5W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 20 TO 30 KT. SEAS 8
TO 11 FT. ELSEWHERE WITHIN AREA BOUNDED BY 16N95W TO 13N94W TO
11N96W TO 11N99W TO 16N95W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED NE AND S SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 14N95W TO 14N96W TO
16N95W TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.S OF 06N W OF 131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SE AND NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 03.4S120W TO 00N140W
TO 05N140W TO 05N135W TO 00N108W TO 03.4S95W TO 03.4S120W WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 08N96W TO 08N91W TO
05N92W TO 05N98W TO 08N96W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
SW SWELL.

.24 HOUR FORECAST COLD FRONT APPROACHING 30N140W. WITHIN AREA
BOUNDED BY 29N140W TO 30N140W TO 30N1375W TO 29N140W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN NW SWELL.
.36 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N131W TO 29N140W.
WITHIN AREA BOUNDED BY 22N140W TO 30N140W TO 30N126W TO 22N140W
WINDS 20 KT OR LESS. SEAS 8 TO 16 FT IN NW SWELL...HIGHEST NEAR
30N140W.
.48 HOUR FORECAST COLD FRONT DISSIPATED. N OF 28N WITHIN 90 NM W
OF COAST OF BAJA CALIFORNIA NW TO N WINDS 20 TO 25 KT. SEAS 8 TO
10 FT. ELSEWHERE WITHIN AREA BOUNDED BY 19N130W TO 12N131W TO
13N140W TO 30N140W TO 30N117W TO 27N116W TO 19N130W WINDS 20 KT
OR LESS. SEAS 8 TO 15 FT IN NW SWELL...HIGHEST NEAR 30N127W.

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

CONVECTION VALID AT 0215 UTC THU OCT 19...

.TROPICAL WAVE N OF 04N ALONG 84W...SCATTERED MODERATE ISOLATED
STRONG N OF 05N E OF TROPICAL WAVE AXIS.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N74W TO 10N85W TO 07N103W TO
08N117W. ITCZ AXIS EXTENDS FROM 08N117W TO 10N125W TO 08N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 75 NM S OF AXIS BETWEEN
90W AND 93W...FROM 08N TO 09N BETWEEN 96W AND 100W...FROM 08N TO
10N BETWEEN 118W AND 120W...AND WITHIN 120 NM N OF AXIS BETWEEN
135W AND 139W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0000 UTC OCT 19 2017.
24 HOUR FORECAST VALID 0000 UTC OCT 20 2017.
48 HOUR FORECAST VALID 0000 UTC OCT 21 2017.

.WARNINGS.

...GALE WARNING...
.NE TO E WINDS 30 TO 35 KT IN SOME OF THE CHANNELS WITHIN THE
MAIN HAWAIIAN ISLANDS. FOR DETAILS SEE COASTAL WATERS FORECAST
ISSUED BY NWS HONOLULU FORECAST OFFICE UNDER AWIPS HEADER
HFOCWFHFO AND WMO HEADER FZHW50 PHFO.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST NE TO E WINDS DIMINISHED BELOW GALE FORCE AND
DESCRIBED BELOW.

.SYNOPSIS AND FORECAST.

.ELSEWHERE NE TO E WINDS 20 TO 30 KT FROM 10N TO 28N BETWEEN
150W AND 175W...AND N OF 28N BETWEEN 175W AND 171E.
.24 HOUR FORECAST ELSEWHERE NE TO E WINDS 20 TO 30 KT N OF 12N
BETWEEN 148W AND 180W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 11N TO 25N
BETWEEN 151W AND 167W.

.TROUGH FROM 29N142W TO 21N143W TO 14N144W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH FROM 26N143W TO 22N144W TO 17N143W.
WINDS 20 TO 25 KT FROM 21N TO 27N E OF 147W.
.48 HOUR FORECAST WEAKENING TROUGH FROM 25N145W TO 21N145W TO
15N147W. WINDS 20 TO 25 KT FROM 22N TO 26N BETWEEN 150W AND
145W.

.TROUGH FROM 24N160E TO 24N164E TO 22N168E MOVING N 10 KT. E
WINDS 20 TO 25 KT FROM 24N TO 27N W OF 163E. SCATTERED MODERATE
TSTMS FROM 20N TO 27N W OF 170E.
.24 HOUR FORECAST TROUGH FROM 25N160E TO 26N167E TO 30N170E.
ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST WEAK TROUGH FROM 28N160E TO 28N165E TO
30N168E.

.SEAS 8 TO 12 FT N OF A LINE BOUNDED BY A LINE FROM 30N168W TO
20N153W TO 10N150W TO 07N166W TO 12N178E TO 30N170E TO 30N168W.
.24 HOUR FORECAST SEAS 10 TO 13 FT N OF 28N E OF 155W. SEAS 8 TO
12 FT ELSEWHERE N OF A LINE FROM 29N140W TO 20N154W TO 07N160W
TO 08N180E TO 17N172E TO 30N171E.
.48 HOUR FORECAST SEAS 9 TO 12 FT NE OF A LINE FROM 30N152W TO
22N149W TO 20N140W. SEAS 8 TO 10 FT ELSEWHERE IN AREA BOUNDED BY
A LINE FROM 18N140W TO 09N154W TO 10N172E TO 17N168E TO 30N158W
TO 30N140W TO 18N140W. SEAS 8 TO 9 FT NW OF A LINE FROM 30N180E
TO 26N160E.

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

.ITCZ FROM 08N140W TO 10N152W TO 10N168W TO 08N173E. SCATTERED
MODERATE TSTMS FROM 06N TO 13N BETWEEN 152W AND 170W...FROM 06N
TO 13N BETWEEN 178W AND 172E...AND WITHIN 180 NM N OF ITCZ
BETWEEN 170W AND 177W.

.ISOLATED MODERATE TSTMS FROM 19N TO 24N BETWEEN 178W AND 180W.

$$

.FORECASTER BIRCHARD. HONOLULU HI.


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