High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 162202
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED AUG 16 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 16.
24 HOUR FORECAST VALID 1800 UTC AUG 17.
48 HOUR FORECAST VALID 1800 UTC AUG 18.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM BANYAN NEAR 37.8N 170.5E MOVING NE OR 040 DEG AT
29 KT. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM
FORCE WINDS WITHIN 55 NM NE...70 NM SE...45 NM SW...AND 40 NM NW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 120 NM NW...120 NM
NE...180 NM SE...AND 240 NM SW QUADRANTS WITH SEAS TO 28 FT.
ELSEWHERE FROM 31N TO 40N BETWEEN 175E AND 166E WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE BANYAN 46N179W 1000 MB.
WITHIN 120 NM OF LOW WINDS 30 TO 45 KT. SEAS 12 TO 20 FT.
ELSEWHERE WITHIN 180 NM NW...AND 240 NM NE...SE...AND S
QUADRANTS WINDS 20 TO 33 KT. SEAS 8 TO 16 FT. ALSO WITHIN 120 NM
EITHER SIDE OF A LINE FROM 41N177W TO 34N168E AREA OF SW WINDS
TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE BANYAN 49N176W 1000 MB.
FROM 37N TO 52N BETWEEN 162W AND 175E WINDS 20 TO 30 KT. SEAS TO
12 FT.

...GALE WARNING...
.OVER FORECAST WATERS FROM 38N TO 44N BETWEEN 124W AND 129W AREA
OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.06 HOUR FORECAST FROM 41N TO 43N BETWEEN 124W AND 126W AREA OF
N WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST FROM 36N TO 44N BETWEEN 124W AND 130W AREA OF
N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.30 HOUR FORECAST FROM 41N TO 43N BETWEEN 124W AND 126W AREA OF
N WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF A LINE FROM
43N125W TO 36N130W AREA OF N TO NE WINDS 20 TO 30 KT. SEAS 8 TO
13 FT.

...GALE WARNING...
.WITHIN 120 NM SE OF A FRONT TO EXTEND FROM 45N155W TO 48N145W
AREA OF SW WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST NEW LOW 56N140W 1003 MB. OVER FORECAST WATERS
WITHIN 120 NM EITHER SIDE OF A LINE FROM 53N130W TO 49N134W
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 180 NM S
SEMICIRCLE OF LOW...AND WITHIN 120 NM EITHER SIDE OF A LINE FROM
49N134W TO 45N143W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH GALE
WARNING IMMEDIATELY BELOW.

...GALE WARNING...
.OVER FORECAST WATERS WITHIN 180 NM EITHER SIDE OF A LINE FROM
59N179E TO 52N163W AREA OF W TO NW WINDS 20 TO 30 KT. SEAS TO 12
FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE FROM 52N163W
TO 57N149W AREA OF SW TO W WINDS 20 TO 30 KT. SEAS TO 9 FT.
.06 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF A LINE FROM
59N179E TO 52N163W AREA OF W TO NW WINDS 25 TO 35 KT. SEAS 8 TO
13 FT.
.24 HOUR LOW 59N165W 999 MB. FROM 52N TO 55N BETWEEN 159W AND
166W AREA OF W TO NW WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
ELSEWHERE WITHIN 180 NM EITHER SIDE OF A LINE FROM 51N145W TO
52N157W TO 58N177E WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSPATED. FROM 51N TO 56N BETWEEN 133W
AND 159W AREA OF SW TO W WINDS 20 TO 30 KT. SEAS TO 11 FT.

...GALE WARNING...
.LOW 41N167E 1001 MB MOVING NE 15 KT. FROM 41N TO 48N BETWEEN
180W AND 162E WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.06 HOUR FORECAST LOW 42N168E 1003 MB. BETWEEN 120 NM AND 420 NM
NE QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 45N173E 1003 MB. EXCEPT AS DESCRIBED WITH
POST-TROPICAL CYCLONE BANYAN ABOVE...WITHIN 300 NM OF LOW WINDS
20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH
POST-TROPICAL CYCLONE BANYAN ABOVE.

.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.

.LOW 57N136W 1006 MB MOVING NE 15 KT. OVER FORECAST WATERS
WITHIN 180 NM S SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
ELSEWHERE FROM 49N TO 57N BETWEEN 132W AND 139W WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
56N140W IN WARNINGS SECTION ABOVE.

.LOW 42N167W 1015 MB MOVING NE 25 KT. FROM 39N TO 43N BETWEEN
163W AND 175W WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 44N156W 1016 MB. WITHIN 120 NM OF LOW
EXCEPT WITHIN 300 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 46N149W 1018 MB. WITHIN 120 NM OF LOW
WINDS TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST OVER FORECAST WATERS WITHIN 90 NM EITHER SIDE
OF A LINE FROM 63N164W TO 65N169W AREA OF NW WINDS 20 TO 30 KT.
SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 43N
BETWEEN 178E AND 168E...FROM 38N TO 42N BETWEEN 163W AND
172W...FROM 45N TO 50N BETWEEN 146W AND 152W...AND WITHIN 240 NM
SE OF A LINE FROM 46N153W TO 42N163W.
.24 HOUR FORECAST DENSE FOG FROM 39N TO 46N BETWEEN 174W AND
180W.
.48 HOUR FORECAST DENSE FOG FROM 38N TO 51N BETWEEN 165W AND
176W...FROM 54N TO 57N BETWEEN 179E AND 172E...AND WITHIN 120 NM
OF 46N146W.

.HIGH 41N143W 1032 MB MOVING E 05 KT.
.24 HOUR FORECAST HIGH 41N140W 1028 MB.
.48 HOUR FORECAST HIGH 42N138W 1029 MB.

.HIGH 51N176E 1026 MB MOVING SE 35 KT.
.24 HOUR FORECAST HIGH 46N164W 1024 MB.
.48 HOUR FORECAST HIGH 45N156W 1024 MB.

.24 HOUR FORECAST NEW HIGH 36N158W 1024 MB.
.48 HOUR FORECAST HIGH 33N164W 1023 MB.

.24 HOUR FORECAST NEW HIGH 52N169E 1018 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 45N160E 1021 MB.

.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 1800 UTC WED AUG 16.
24 HOUR FORECAST VALID 1800 UTC THU AUG 17.
48 HOUR FORECAST VALID 1800 UTC FRI AUG 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 17N118W 1009 MB. WITHIN 120 NM NE SEMICIRCLE OF
LOW CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 16N121W 1010 MB. WITHIN 120 NM
NE SEMICIRCLE OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 16N126W 1010 MB. WITHIN 240 NM
NW QUADRANT OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.

.LOW PRES NEAR 11N107W 1008 MB. WITHIN 90 NM E SEMICIRCLE OF LOW
CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 12N111W 1010 MB. WITHIN 120 NM
N SEMICIRCLE OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 14N116W 1009 MB. WITHIN 150 NM
N SEMICIRCLE OF LOW CENTER WINDS 20 TO 25 KT. SEAS TO 8 FT.

.S OF LINE FROM 03.4S100W TO 01S110W TO 01SN120W WINDS 20 KT OR
LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL. SE OF A LINE FROM
11N105W TO 06N115W TO ANOTHER LINE FROM 11N102W TO 06N108W WINDS
20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.24 HOUR FORECAST FROM 07N TO 12N BETWEEN 109W AND 112W WINDS 20
KT OR LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.42 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST LITTLE CHANGE.
.48 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 2100 UTC WED AUG 16...

.TROPICAL WAVE N OF 10 ALONG 84W. SCATTERED MODERATE IS WITHIN
ABOUT 90 NM ON EITHER SIDE OF THE WAVE AXIS FROM 10N TO 15N.

.TROPICAL WAVE N OF 10N ALONG 102W...SCATTERED MODERATE ISOLATED
STRONG FROM 10N TO 16N BETWEEN 100W AND 102W.

.LOW PRES NEAR 11N107W 1008 MB...CLUSTER OF MODERATE TO ISOLATED
STRONG WITHIN 120 NM W SEMICIRCLE OF LOW. SCATTERED MODERATE
ISOLATED STRONG ELSEWHERE FROM 07N TO 14N BETWEEN 106W AND 111W.

.LOW PRES NEAR 17N118W 1009 MB...SCATTERED MODERATE WITHIN 75 NM
S SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 08N90W TO 12N101W TO A
1010 MB LOW PRESSURE NEAR 11N107W TO 13N123W TO 11N134W TO
13N140W. SCATTERED MODERATE IS N OF 06N BETWEEN 80W AND 84W.
SCATTERED MODERATE ISOLATED STRONG IS FROM 07N TO 10N BETWEEN
89W AND 94W, FROM 10N TO 12N BETWEEN 112W AND 124W, AND WITHIN
120 NM S OF THE MONSOON TROUGH W OF 130W.

$$

.FORECASTER GR. NATIONAL HURRICANE CENTER.



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