High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 171125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC TUE OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 17.
24 HOUR FORECAST VALID 0600 UTC OCT 18.
48 HOUR FORECAST VALID 0600 UTC OCT 19.

.WARNINGS.

...STORM WARNING...
.LOW 54N173W 978 MB MOVING E 35 KT. FROM 47N TO 51N BETWEEN 169W
AND 180W WINDS 45 TO 55 KT. SEAS 18 TO 36 FT. ELSEWHERE WITHIN
300 NM NW AND NE...1020 NM SE...AND 720 NM SW QUADRANTS WINDS 30
TO 45 KT. SEAS 12 TO 24 FT...HIGHEST SE AND SW QUADRANTS.
.24 HOUR FORECAST LOW 55N148W 969 MB. BETWEEN 300 NM AND 720 NM
S AND BETWEEN 360 NM AND 720 NM SW QUADRANTS WINDS 40 TO 55 KT.
SEAS 24 TO 42 FT. ALSO WITHIN 120 NM EITHER SIDE OF A LINE FROM
51N133W TO 57N139W WINDS 40 TO 50 KT. SEAS 12 TO 22 FT.
ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM NW...420 NM
NE...960 NM SE...AND 1020 NM SW QUADRANTS WINDS 25 TO 40 KT.
SEAS 12 TO 24 FT...HIGHEST SE AND SW QUADRANTS.
.48 HOUR FORECAST LOW 55N136W 971 MB. BETWEEN 120 NM AND 480 NM
SE AND BETWEEN 240 NM AND 840 NM SW QUADRANTS WINDS 35 TO 45 KT.
SEAS 16 TO 32 FT. ELSEWHERE WITHIN 780 NM SE...1140 NM SW...960
NM W...AND 600 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 24
FT. ALSO WITHIN 300 NM N QUADRANT WINDS TO 25 KT. SEAS 10 TO 19
FT.

...STORM WARNING...
.24 HOUR FORECAST LOW W OF FORECAST AREA 48N156E 996 MB. OVER
FORECAST WATERS FROM 43N TO 51N W OF 162E WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT.
.36 HOUR FORECAST LOW 50N160E 988 MB. WITHIN 240 NM NE AND S
QUADRANTS WINDS 40 TO 50 KT. SEAS 15 TO 30 FT...HIGHEST S
QUADRANT.
.48 HOUR FORECAST LOW 51N165E 985 MB. BETWEEN 180 NM AND 360 NM
NE...AND WITHIN 300 NM SE AND SW QUADRANTS WINDS 40 TO 50 KT.
SEAS 18 TO 36 FT...HIGHEST SE AND SW QUADRANTS. ELSEWHERE WITHIN
480 NM NE AND SE AND 540 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS
12 TO 24 FT...EXCEPT 11 TO 21 FT NE QUADRANT.

...GALE WARNING...
.OVER FORECAST WATERS WITHIN 120 NM EITHER SIDE OF A LINE FROM
49N127W TO 43N136W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. ALSO
WITHIN 240 NM EITHER SIDE OF A LINE FROM 47N132W TO 54N141W
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 55N148W ABOVE.

...GALE WARNING...
.OVER FORECAST WATERS FROM 34N TO 39N W OF 170E WINDS 20 TO 30
KT. SEAS TO 11 FT.
.12 HOUR FORECAST LOW JUST W OF FORECAST AREA 36N158E 1012 MB.
WITHIN 480 NM NE QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 39N164E 1010 MB. FROM 38N TO 44N BETWEEN
179E AND 166E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 48N178E 1000 MB. WITHIN 180 NM NE QUADRANT
WINDS 35 TO 45 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 300 NM
NE...840 NM SE...AND 480 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS
8 TO 14 FT...HIGHEST NE AND SE QUADRANTS.

.SYNOPSIS AND FORECAST.

.LOW 59N144W 997 MB MOVING E 05 KT. OVER FORECAST WATERS WITHIN
360 NM SE AND 180 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10
FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
55N148W IN WARNINGS SECTION ABOVE.

.OVER FORECAST WATERS S OF A LINE FROM 32N180W TO 34N146W TO
33N143W WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST S OF 32N BETWEEN 145W AND 173E WINDS LESS THAN
25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST S OF 32N BETWEEN 147W AND 175E WINDS TO 25 KT.
SEAS TO 10 FT.

.OVER FORECAST WATERS FROM 43N TO 52N W OF 170E WINDS 20 TO 30
KT. SEAS TO 12 FT.
.24 HOUR FORECAST WITHIN AN AREA BOUNDED BY 46N170W TO 54N173E
TO 56N170W TO 46N170W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST WITHIN 180 NM EITHER SIDE OF A LINE FROM
56N163W TO 60N169W TO 66N170W WINDS 20 TO 30 KT. SEAS TO 12 FT.

.48 HOUR FORECAST FROM 32N TO 34N BETWEEN 119W AND 121W WINDS TO
25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST FROM 35N TO 40N W OF 168E AREA OF N TO NE
WINDS 20 TO 30 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY 42N167W TO 48N161W TO 43N156W TO 42N167W...AND WITHIN
120 NM OF 49N127W.
.24 HOUR FORECAST DENSE FOG FROM 38N TO 42N BETWEEN 178E AND
174E.
.48 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY 49N175E TO
48N180W TO 44N168W TO 39N175W TO 49N175E.

.HIGH 35N159W 1030 MB MOVING W 20 KT.
.24 HOUR FORECAST HIGH 36N169W 1031 MB.
.48 HOUR FORECAST HIGH MERGED WITH HIGH 38N160W BELOW.

.HIGH 45N148W 1024 MB MOVING E 45 KT.
.24 HOUR FORECAST HIGH INLAND.

.HIGH 40N170E 1026 MB MOVING NE 30 KT.
.24 HOUR FORECAST HIGH 43N174W 1033 MB.
.48 HOUR FORECAST HIGH 38N160W 1034 MB.

.24 HOUR FORECAST NEW HIGH 37N134W 1025 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER FIGURSKEY. 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 0600 UTC TUE OCT 17.
24 HOUR FORECAST VALID 0600 UTC WED OCT 18.
48 HOUR FORECAST VALID 0600 UTC THU OCT 19.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO 14N96W...
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS
9 TO 14 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 15N95W
TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER
OF THE AREA FROM 10N TO 13N BETWEEN 94W AND 100W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL.
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40
KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W
TO 15N95W TO 13N96W TO 11N99W N TO NE WINDS 20 TO 30 KT. SEAS 8
TO 12 FT. REMAINDER OF THE AREA FROM 10N TO 13N BETWEEN 94W AND
101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW
SWELL.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40
KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W
TO 15N95W TO 13N96W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8
TO 12 FT. REMAINDER OF THE AREA FROM 08N TO 12N BETWEEN 94W AND
101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW
SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W TO
14N95.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM
16N95W TO 15N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO
10 FT. REMAINDER OF AREA FROM 09N TO 12N BETWEEN 94W AND 99W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND SW SWELL.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 22N126W 1008 MB. WITHIN 120 NM NE SEMICIRCLE OF
LOW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 16N TO
25N BETWEEN 120W AND 127W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.
.24 HOUR FORECAST WEAKENING LOW PRES NEAR 24N128W 1010 MB.
WITHIN 90 NM N SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT.
.30 HOUR FORECAST LOW DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS
THAN 8 FT.

.LOW PRES NEAR 14N136W 1007 MB. WITHIN 120 NM N SEMICIRCLE OF
LOW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 12N TO 16N
W OF 132W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST TROUGH FROM 17N139W TO 12N140W. WINDS 20 KT OR
LESS. SEAS LESS THAN 8 FT.

.S OF A LINE FROM 00N135W TO 05N135W TO 07N120W TO 10N116W TO
15N117W TO 10N102W TO 03.4S112W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT PRIMARILY IN SW SWELL.
.24 HOUR FORECAST FROM 10N TO 14N BETWEEN 115W AND 125W...AND S
OF 05N W OF 130W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SE AND
SW SWELL.
.48 HOUR FORECAST S OF 06N W OF 131W WINDS 20 KT OR LESS. SEAS
8 FT PRIMARILY IN SE SWELL.

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

CONVECTION VALID AT 0900 UTC TUE OCT 17...

.LOW PRES NEAR 22N126W...SCATTERED MODERATE WITHIN 150 NM IN
THE NE QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS ACROSS PANAMA AND COSTA RICA TO NEAR
09N85W TO 08N95W TO 08N102W. THE ITCZ CONTINUES FROM 08N102W TO
09N108W TO 08N120W TO 11N130W TO LOW PRESSURE 1007 MB NEAR
14N136W TO 11N140W. SCATTERED MODERATE IS NOTED FROM 08N TO 10N
BETWEEN 95W AND 103W. SCATTERED MODERATE ISOLATED STRONG IS
WITHIN ABOUT 180 NM N OF ITCZ AXIS BETWEEN 111W AND 118W.
SIMILAR CONVECTION IS NEAR 11N136W.


.FORECASTER GR. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0600 UTC OCT 17 2017.
24 HOUR FORECAST VALID 0600 UTC OCT 18 2017.
48 HOUR FORECAST VALID 0600 UTC OCT 19 2017.

.WARNINGS.

...GALE WARNING...
.NE TO E WINDS 25 TO 35 KT AROUND 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
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 17N160E TO 19N165E TO 24N170E MOVING NW 10 KT.
WINDS E 20 TO 25 KT AND SEAS 8 TO 9 FT OVER FORECAST WATERS N OF
19N W OF TROUGH AXIS. SCATTERED STRONG TSTMS WITHIN 180 NM
EITHER SIDE OF TROUGH AXIS. ISOLATED MODERATE TO STRONG TSTMS
ELSEWHERE FORM 27N TO 02N W OF 171E.
.24 HOUR FORECAST TROUGH FROM 23N160E TO 25N168E. WINDS SE TO E
20 TO 30 KT AND SEAS 8 TO 9 FT WITHIN 240 NM N OF TROUGH AXIS.
.48 HOUR FORECAST TROUGH FROM 26N160E TO 25N166E. WINDS SE TO E
20 TO 25 KT AND SEAS 8 TO 9 FT WITHIN 120 NM N OF TROUGH AXIS.

.TROUGH FROM 25N140W TO 28N141W TO 30N141W MOVING SW SLOWLY.
.24 HOUR FORECAST TROUGH FROM 19N141W TO 25N142W TO 30N143W.
.48 HOUR FORECAST TROUGH FROM 15N143W TO 21N140W TO 27N143W.

.OTHERWISE...IN ADDITION TO GALE AREA DESCRIBED IN WARNING
SECTION ABOVE...WINDS E TO NE E 20 TO 30 KT WITHIN A POLYGON
BOUNDED BY 30N176E 30N145W 22N152W 16N149W 10N157W 13N172W
19N171W 30N176E.
.24 HOUR FORECAST...IN ADDITION TO GALE AREA DESCRIBED IN
WARNING SECTION ABOVE...WINDS NE TO E 20 TO 30 KT WITHIN A
POLYGON BOUND BY 30N175E 30N147W 22N152W 13N148W 10N158W 10N171W
15N179W 30N175E.
.48 HOUR FORECAST...IN ADDITION TO GALE AREA DESCRIBED IN
WARNING SECTION ABOVE...WINDS NE TO E 20 TO 30 KT WITHIN A
POLYGON BOUND BY 28N175E 30N150W 16N150W 09N158W 12N178E
28N175E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 12 FT WITHIN A POLYGON BOUND BY 30N175E 30N145W
13N148W 18N160W 14N176W 24N175E 30N175E.
.24 HOUR FORECAST SEAS 8 TO 12 FT WITHIN A POLYGON BOUND BY
30N172E 30N165W 26N156W 30N146W 13N149W 07N161W 13N178E 24N172W
30N172E.
.48 HOUR FORECAST SEAS 8 TO 12 FT WITHIN A POLYGON BOUND BY
30N170E 30N160W 25N146W 05N153W 10N179W 20N173E 30N170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 12N140W 18N150W 10N165W 08N178E 11N171E. ISOLATED
MODERATE TO STRONG TSTMS WITHIN 480 NM N OF LINE OF
CONVERGENCE... AND ALSO WITHIN 240 NM S OF LINE OF CONVERGENCE.

.OTHERWISE SCATTERED MODERATE TSTMS FROM 25N TO 18N BETWEEN 179W
AND 165W.

$$

.FORECASTER BEDAL. HONOLULU HI.



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