High Seas Forecast
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000
FZPN02 KWBC 202325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC FRI OCT 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC OCT 20.
24 HOUR FORECAST VALID 1800 UTC OCT 21.
48 HOUR FORECAST VALID 1800 UTC OCT 22.

.WARNINGS.

...STORM WARNING...
.LOW 52N166W 980 MB MOVING SE 20 KT. FROM 43N TO 48N BETWEEN
163W AND 180W WINDS 35 TO 50 KT. SEAS 17 TO 35 FT. ELSEWHERE
WITHIN
240 NM NE...840 NM S AND SW...AND 720 NM NW QUADRANTS WINDS 25
TO 35 KT. SEAS 12 TO 27 FT EXCEPT NE QUADRANT TO 12 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED WITH LOW
54N143W BELOW.

...STORM WARNING...
.LOW 51N156W 983 MB MOVING NE 20 KT. EXCEPT WHERE NOTED ABOVE IN
PREVIOUS STORM WARNING...WITHIN 1020 NM S AND 300 NM W QUADRANTS
WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW 54N143W 969 MB. WITHIN 90 NM N AND E OF A
LINE FROM 55N138W TO 54N133W TO 49N127W WINDS 35 TO 50 KT. SEAS
11 TO 19 FT. ELSEWHERE WITHIN 420 NM E AND NE...1020 NM S...840
NM SW AND 300 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 24
FT EXCEPT N SEMICIRCLE 8 TO 14 FT.
.48 HOUR FORECAST LOW 56N136W 993 MB. WITHIN 120 NM OF CENTER
EXCEPT 600 NM S QUADRANT WINDS 25 TO 35 KT. SEAS 10 TO 21 FT.

...GALE WARNING...
.LOW 64N164W 986 MB MOVING S 5 KT. OVER FORECAST WATERS WITHIN
540 NM W QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 62N166W 985 MB. WITHIN 420 NM W SEMICIRCLE
 WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 60N164W 990 MB. WITHIN 660 NM W QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.FROM 32N TO 35N BETWEEN 118W AND 122W AREA OF NW WINDS TO 25
KT. SEAS 9 TO 16 FT WITH NW SWELL.
.12 HOUR FORECAST FROM 31N TO 35N BETWEEN 118W AND 122W AREA OF
NW WINDS 25 TO 35 KT. SEAS 12 TO 19 FT WITH NW SWELL.
.24 HOUR FORECAST FROM 30N TO 35N BETWEEN 119W AND 123W AREA OF
NW WINDS 20 TO 30 KT. SEAS 8 TO 15 FT WITH NW SWELL.
.48 HOUR FORECAST FROM 30N TO 36N BETWEEN 121W AND 125W AREA OF
N WINDS TO 25 KT. SEAS 8 TO 11 FT.

...GALE WARNING...
.FROM 34N TO 39N BETWEEN 160E AND 172E AREA OF E WINDS 20 TO 30
KT. SEAS 10 TO 14 FT.
.24 HOUR FORECAST LOW 35N177W 1012 MB. WITHIN 180 NM N OF A LINE
FROM 35N172W TO 35N170E AND FROM 35N TO 40N BETWEEN 160E AND
170E WINDS 25 TO 35 KT. SEAS 10 TO 17 FT.
.48 HOUR FORECAST LOW 38N159W 996 MB. WITHIN 360 NM SE AND 180
NM NW SEMICIRCLES WINDS 35 TO 45 KT. SEAS 12 TO 18 FT. ELSEWHERE
OVER FORECAST WATERS WITHIN 720 NM SE AND 360 NM NW
SEMICIRCLES...AND FROM 30N TO 40N BETWEEN 170W AND 173E WINDS 25
TO 35 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 43N TO 58N BETWEEN 174W AND 168E WINDS 20
TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST NEW LOW 45N167W 1004 MB. EXCEPT WHERE NOTED IN
GALE WARNINGS ABOVE...FROM 40N TO 56N BETWEEN 167W AND 174E N TO
NW WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS N OF 35N AND E OF 135W WINDS LESS THAN 25
KT. SEAS 10 TO 19 FT WITH NW SWELL.
.24 HOUR FORECAST CONDITIONS DESCRIBED ABOVE WITH LOW 54N143W.

.48 HOUR FORECAST NEW LOW 54N159W 998 MB. WITHIN 180 NM S
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST FROM 30N TO 40N BETWEEN 160E AND 174E AND N OF
40N W OF 164E WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.HIGH 33N155W 1028 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 34N140W 1027 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 33N131W 1028 MB.
.48 HOUR FORECAST HIGH 35N131W 1032 MB.

.48 HOUR FORECAST HIGH 46N169E 1036 MB.

.FORECASTER CLARK. 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 FRI OCT 20.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 21.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 28N WITHIN 90 NM W OF BAJA CALIFORNIA PENINSULA NW WINDS 20
TO 25 KT. SEAS TO 8 FT. WITHIN AREA BOUNDED BY 24N130W TO
19N140W TO 30N140W TO 30N120W TO 24N130W WINDS 20 KT OR LESS.
SEAS 8 TO 16 FT IN NW SWELL...HIGHEST NEAR 30N134W.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 21N112W TO 11N126W TO
09N140W TO 30N140W TO 29N114W TO 21N112W...INCLUDING SEBASTIAN
VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 16 FT IN NW
SWELL...HIGHEST NEAR 30N120W.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 05N113W TO 03.4S108W
TO 00N140W TO 30N140W TO 30N118W TO 18N107W TO 05N113W...
INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS
8 TO 12 FT IN NW SWELL...HIGHEST NEAR 23N118W.

.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 14N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN AREA BOUNDED BY 03.4S82W TO 03.4S120W TO 00N140W TO
03N140W TO 06N109W TO 01N84W TO 03.4S82W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 03N81W TO 03N83W TO
05N85W TO 07N85W TO 07N82W TO 05N79W TO 03N81W...INCLUDING NEAR
THE AZUERO PENINSULA...WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW
SWELL. WITHIN AREA BOUNDED BY 00N120W TO 03.4S110W TO 03.4S120W
TO 00N120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED S AND SW
SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST GULF OF CALIFORNIA 26N WITHIN 45 NM OF SHORE OF
BAJA CALIFORNIA NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
48 HOUR FORECAST GULF OF CALIFORNIA N OF 25N NW WINDS 02 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 FRI OCT 20...

.TROPICAL WAVE N OF 07N ALONG 94W...SCATTERED MODERATE ISOLATED
STRONG FROM 07N TO 12N BETWEEN 92W AND 97W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 09N94W TO 08N110W TO
09N119W. ITCZ AXIS EXTENDS FROM 09N119W TO 10N130W TO 09N134W TO
10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 07N TO 09N
BETWEEN 87W AND 91W...FROM 07N TO 10N BETWEEN 97W AND 107W...
FROM 07N TO 10N BETWEEN 112W AND 115W...AND FROM 08N TO 10N
BETWEEN 131W AND 133W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1800 UTC OCT 20 2017.
24 HOUR FORECAST VALID 1800 UTC OCT 21 2017.
48 HOUR FORECAST VALID 1800 UTC OCT 22 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.
.12 HOUR FORECAST NE TO E WINDS EASED BELOW GALE FORCE.

.SYNOPSIS AND FORECAST.

.DEVELOPING COLD FRONT APPROACHING FORECAST AREA FROM N.
.48 HOUR FORECAST FRONT FROM 30N171W TO 28N178E TO 29N170E.
WINDS SW TO NW 20 TO 25 KT N OF 28N BETWEEN 178E AND 160W.

.TROUGH FROM 18N146W TO 21N144W TO 24N140W MOVING NW 10 KT.
.24 HOUR FORECAST TROUGH FROM 21N149W TO 27N144W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 28N160E TO 27N165E MOVING NW 10 KT. ISOLATED
MODERATE TO STRONG TSTSM N OF 17N W OF 171E.
.24 HOUR FORECAST TROUGH FROM 29N160E TO 30N163E.
.48 HOUR FORECAST TROUGH N OF FORECAST AREA.

.RIDGE BUILDING OVER FORECAST AREA.
.24 HOUR FORECAST RIDGE FROM 30N161W TO 28N176W TO 27N169E.
.48 HOUR FORECAST RIDGE FROM 30N141W TO 27N158W TO 24N172W.

.OTHERWISE AND ELSEWHERE...WINDS NE TO E 20 TO 30 KT FROM 24N TO
13N BETWEEN 170W AND 152W.
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 22N TO 11N
BETWEEN 173W AND 155W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 13 FT WITHIN A POLYGON BOUND BY 30N154W 30N140W
20N140W 15N154W 08N154W 08N167W 10N179E 16N171E 24N177E 26N169W
30N154W. ALSO SEAS 8 TO 9 FT N OF 27N W OF 179E.
.24 HOUR FORECAST SEAS 8 TO 11 WITHIN A POLYGON BOUND BY 30N160E
30N165W 28N152W 30N140W 10N140W 06N170W 18N160E 30N160E.
.48 HOUR FORECAST SEAS 8 TO 11 FT WITHIN A POLYGON BOUND BY
30N160E 30N140W 08N140W 17N160W 17N160E 30N160E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 10N140W TO 11N145W TO 07N155W TO 06N162W TO 08N169W
TO 07N178W TO 11N175E. SCATTERED STRONG TSTMS WITHIN 240 NM N OF
CONVERGENCE LINE BETWEEN 145W AND 169W. ISOLATED MODERATE TO
STRONG TSTMS ELSEWHERE WITHIN 360 NM EITHER SIDE OF CONVERGENCE
LINE.

.TROPICAL WAVE 07N163E TO 14N169E MOVING WNW 15 KT. SCATTERED
STRONG TSTMS FROM 14N TO 06N W OF 169E. ISOLATED MODERATE TO
STRONG TSTMS ELSEWHERE FROM 17N TO 03N W OF 175E.

.OTHERWISE SCATTERED MODERATE TSTMS FROM 19N TO 12N BETWEEN 175E
AND 175W.

$$

.FORECASTER BEDAL. HONOLULU HI.


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