High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 181725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT NOV 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

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

SYNOPSIS VALID 1200 UTC NOV 18.
24 HOUR FORECAST VALID 1200 UTC NOV 19.
48 HOUR FORECAST VALID 1200 UTC NOV 20.

.WARNINGS.

...STORM WARNING...
.LOW 46N139W 1003 MB MOVING NE 30 KT AND INTENSIFYING. WITHIN
240 NM E AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
ELSEWHERE WITHIN 360 NM E OF A FRONT FROM 53N129W TO 49N135W TO
LOW CENTER TO 43N144W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.12 HOUR FORECAST LOW 51N131W 995 MB. WITHIN 120 NM E AND SE
QUADRANTS WINDS 35 TO 50 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW INLAND 54N126W 994 MB. WITHIN 240 NM E OF
A FRONT FROM 50N128W TO 43N133W TO 36N142W WINDS 25 TO 40 KT.
SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW WELL INLAND. WITHIN 180 NM SE OF A FRONT
FROM 43N125W TO 36N139W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...STORM WARNING...
.LOW NW OF AREA 64N173E 998 MB MOVING NE 25 KT WILL TURN E IN
NEXT 24 HOURS. FRONT EXTENDS FROM 59N179W TO 53N178E TO 46N175E
TO 42N174E TO 34N173E TO 30N169E. WITHIN 360 NM W OF THE FRONT S
OF 46N WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 660
NM S QUADRANT...300 NM E OF THE FRONT N OF 46N...AND 120 NM NE
OF A LINE FROM 63N178E TO 60N170W WINDS 20 TO 30 KT. SEAS 8 TO
15 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 65N168W 985 MB
AND SECOND CENTER 59N156W 991 MB. WITHIN 540 NM S AND SW
QUADRANTS OF FIRST CENTER AND 480 NM SW QUADRANT OF SECOND
CENTER WINDS 40 TO 50 KT. SEAS 14 TO 26 FT. ELSEWHERE WITHIN 720
NM S AND SW QUADRANTS OF FIRST CENTER AND 720 NM SW QUADRANT OF
SECOND CENTER WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 54N151W 970 MB. WITHIN 540 NM SW AND 300
NM NW QUADRANTS WINDS 40 TO 50 KT. SEAS 14 TO 28 FT. ELSEWHERE
WITHIN 720 NM W SEMICIRCLE AND 180 NM N AND E OF A FRONT FROM
57N149W TO 55N144W TO 50N141W TO 43N145W WINDS 25 TO 40 KT. SEAS
10 TO 20 FT.

...STORM WARNING...
.12 HOUR FORECAST N OF 36N AND W OF 163E WINDS 25 TO 35 KT. SEAS
10 TO 16 FT.
.24 HOUR FORECAST LOW NW OF AREA 52N153E 970 MB. WITHIN 420 NM
SE QUADRANT WINDS 40 TO 50 KT. SEAS 14 TO 28 FT. ELSEWHERE W OF
A LINE FROM 55N171E TO 44N170E TO 38N160E WINDS 25 TO 40 KT.
SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW WELL NW OF AREA. FRONT TO EXTEND FROM
57N169E TO 48N170E TO 33N164E. WITHIN 360 NM E OF THE FRONT N OF
40N WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 240 NM
W OF THE FRONT WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.LOW 56N143W 998 MB MOVING SE 20 KT. WITHIN 600 NM W QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. ELSEWHERE WITHIN 720 NM SW
AND 240 NM N AND NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12
FT. .24 HOUR FORECAST LOW 50N137W 1002 MB. WITHIN 180 NM SW
QUADRANT WINDS TO 25 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 32N155W 1007 MB MOVING SE 10 KT. WITHIN 720 NM N AND NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 22 FT.
.24 HOUR FORECAST LOW 31N153W 1002 MB. WITHIN 660 NM N AND NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW 30N148W 999 MB. N OF 30N AND WITHIN 780 NM
W AND 420 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
ELSEWHERE FROM 30N TO 38N BETWEEN 140W AND 134W WINDS 20 TO 30
KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.LOW 31N173E 1011 MB DRIFTING SW. WITHIN 720 NM NE QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST DISSIPATED. WITHIN 420 NM E AND NE OF A LINE
FROM 38N166E TO 30N174E WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST WITHIN 360 NM E AND NE OF A LINE FROM 36N169E
TO 30N174E WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 360 NM E OF
A LINE FROM 62N178E TO 53N177E TO 41N172E.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 38N TO 46N BETWEEN 180W AND 167E.
.48 HOUR FORECAST DENSE FOG N OF 42N BETWEEN 177W AND 170E.

.HIGH 41N127W 1025 MB MOVING S 15 KT.
.24 HOUR FORECAST HIGH 35N123W 1022 MB.
.48 HOUR FORECAST HIGH 30N124W 1020 MB.

.HIGH 44N171W 1039 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 43N173W 1038 MB.
.48 HOUR FORECAST HIGH MERGED WITH HIGH 44N172W

.HIGH 45N163E 1032 MB MOVING NE 30 KT WILL TURN SE AFTER 24
HOURS.
.24 HOUR FORECAST HIGH 51N178W 1041 MB.
.48 HOUR FORECAST HIGH 44N172W 1037 MB.

.FORECASTER ACHORN. 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 1200 UTC SAT NOV 18.
24 HOUR FORECAST VALID 1200 UTC SUN NOV 19.
48 HOUR FORECAST VALID 1200 UTC MON NOV 20.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 25 TO 35 KT. SEAS TO
10 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W N
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.30 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14.5N95.5W
TO 14N96W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40
KT. SEAS 12 TO 15 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W
TO 14N95W TO 13N97W N WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 13N96W
...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 25 TO 35 KT. SEAS
12 TO 15 FT. ELSEWHERE WITHIN 90 NM OF LINE FROM 16N95W TO
13N96W TO 11N99W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.18 HOUR FORECAST GULF OF CALIFORNIA FROM 26N TO 28.5N NW WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST NW OF LINE FROM 30N137W TO 27N140W WINDS 20 KT
OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.30 HOUR FORECAST W OR LINE 30N173W TO 24N140W S WINDS 20 TO 25
KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST W OF A LINE FROM 30N136W TO 22N140W S WINDS 20
TO 25 KT. SEAS 8 TO 11 FT.

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

CONVECTION VALID AT 0900 UTC SAT NOV 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N83W TO 09N103W. ITCZ FROM 09N103W TO
BEYOND 11N140W. SCATTERED MODERATE WITHIN 255 NM OF ITCZ.

.FORECASTER ERA. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 1200 UTC NOV 18 2017.
24 HOUR FORECAST VALID 1200 UTC NOV 19 2017.
48 HOUR FORECAST VALID 1200 UTC NOV 20 2017.

.WARNINGS.

...GALE WARNING...
.TROUGH 30N171E 19N175E. TROUGH NEARLY STATIONARY. SEE WINDS
BELOW. ISOLATED STRONG TSTMS N OF 28N BETWEEN 176E AND 167E.
.24 HOUR FORECAST NEW LOW 27N170E. TROUGH 30N169E THROUGH LOW TO
18N171E. SE WINDS 30 TO 40 KT N OF LINE 30N177W 26N178W 25N179E
30N176E...SEE MORE WINDS BELOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 30N172E 18N175E. SE
WINDS 30 TO 35 KT N OF LINE 30N180W 25N179E 30N175E...SEE MORE
WINDS BELOW.

...GALE WARNING...
.FRONT 30N151W 26N154W 24N158W MOVING S 15 KT. SW WINDS 20 TO 25
KT WITHIN 150 NM SE OF FRONT N OF 28N. SEE MORE WINDS BELOW.
.24 HOUR FORECAST FRONT 30N144W 25N150W 22N156W 17N154W. SE TO S
WINDS 20 TO 25 KT N OF 20N E OF 143W. SEE WINDS BELOW.
.30 HOUR FORECAST FRONT 30N143W 20N150W 13N157W. WINDS 30 TO 35
KT N OF 29N BETWEEN 153W AND 157W. SE TO S WINDS 20 TO 30 KT N
OF 20N E OF 143W. SEE MORE WINDS BELOW.
.48 HOUR FORECAST FRONT 30N140W 20N147W 16N151W. S TO SW WINDS
20 TO 30 KT E OF LINE 21N140W 23N143W 29N140W. SEE MORE WINDS
BELOW.

.SYNOPSIS AND FORECAST.

.TROUGH 30N153W 14N155W 09N167W NEARLY STATIONARY. ISOLATED
MODERATE TSTMS FROM 19N TO 12N E OF 155W.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IN GALE
WARNING ABOVE.

.RIDGE 29N140W 26N145W 22N154W MOVING SE 25 KT.

.RIDGE 30N173W 25N176W 20N178E 19N170E 22N160E NEARLY
STATIONARY.

.WINDS 20 TO 30N N OF LINE 30N155W 18N175W 30N175E AND NW OF
LINE 30N170E 20N160E.
.24 HOUR FORECAST EXCEPT FOR GALE AREA DESCRIBED ABOVE...WINDS
20 TO 30 KT N OF LINE 30N155W 19N175W 30N175E.
.48 HOUR FORECAST EXCEPT FOR GALE AREAS DESCRIBED ABOVE WINDS 20
TO 30 KT N OF LINE 30N145W 22N148W 25N160W 20N180W 30N175E.

.SEAS 8 TO 13 FT N OF LINE 30N156W 10N170W 08N180W 25N180W
25N160E.
.24 HOUR FORECAST SEAS 12 TO 17 FT N OF LINE 30N178W 25N180W
30N174E. SEAS 12 TO 16 FT N OF LINE 30N154W 27N153W 24N160W
30N175E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE 28N140W 18N175W
27N174E 22N160E
.48 HOUR FORECAST SEAS 12 TO 16 FT N OF 24N BETWEEN 150W AND
170W AND 178W AND N OF LINE 30N178W 23N180W 30N170E. SEAS 8 TO
12 FT ELSEWHERE N OF LINE 20N140W 15N170W 30N160E.

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

.ISOLATED MODERATE TSTMS FROM 09N TO 04N W OF 170W.

$$
.HONOLULU FORECASTER.



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