High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 161555
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1200 UTC AUG 16.
24 HOUR FORECAST VALID 1200 UTC AUG 17.
48 HOUR FORECAST VALID 1200 UTC AUG 18.

.WARNINGS.

...TYPHOON WARNING...
.TYPHOON BANYAN NEAR 35.6N 168.1E MOVING NE OR 050 DEG AT 32 KT.
MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 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 180 NM SW QUADRANTS WITH SEAS TO 28 FT.
ELSEWHERE FROM 30N TO 38N BETWEEN 170E AND 163E WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE BANYAN 44N180W 996 MB.
WITHIN 120 NM OF LOW WINDS 30 TO 45 KT. SEAS 12 TO 22 FT.
ELSEWHERE WITHIN 240 NM NW AND NE...180 NM SE...AND 300 NM SW
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE BANYAN 48N177W 1003 MB.
WITHIN 300 NM NE AND BETWEEN 120 NM AND 480 NM SE QUADRANTS
WINDS 20 TO 30 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 180 NM NW
QUADRANT WINDS TO 25 KT. SEAS TO 9 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.
.12 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 37N TO 44N BETWEEN 124W AND 130W AREA OF
N WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.36 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 FROM 37N TO 44N BETWEEN 124W AND 131W AREA OF
N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.OVER FORECAST WATERS WITHIN 180 NM EITHER SIDE OF A LINE FROM
59N178E TO 52N167W AREA OF W TO NW WINDS 20 TO 30 KT. SEAS TO 8
FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE FROM 52N167W
TO 57N151W AREA OF SW TO W WINDS 20 TO 30 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WITHIN 180 NM EITHER SIDE OF A LINE FROM
59N179E TO 52N162W AREA OF W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.24 HOUR FORECAST NEW LOW 61N169W 997 MB. WITHIN 180 NM EITHER
SIDE OF A LINE FROM 58N177E TO 52N161W TO 51N151W AREA OF W
WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 50N TO 56N BETWEEN 134W
AND 168W AREA OF SW TO W WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 40N166E 1004 MB MOVING NE 15 KT. WITHIN 240 NM NW AND 540
NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.12 HOUR FORECAST LOW 42N168E 1003 MB. WITHIN 360 NM NE QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 44N172E 1004 MB. WITHIN 300 NM N AND W
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN
240 NM S QUADRANT WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 45N176E 1005 MB. FROM 40N TO 50N BETWEEN
180W AND 171E WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.WITHIN 90 NM EITHER SIDE OF A LINE FROM 43N157W TO 46N149W AREA
OF SW WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF A LINE FROM
51N132W TO 44N148W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.30 HOUR FORECAST OVER FORECAST WATERS WITHIN 120 NM EITHER SIDE
OF A LINE FROM 49N134W TO 53N130W WINDS 25 TO 35 KT. SEAS 8 TO
13 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.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 57N138W 1001 MB MOVING NE 15 KT. FROM 49N TO 56N BETWEEN
132W AND 144W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.LOW 41N175W 1014 MB MOVING NE 35 KT. WITHIN 300 NM E SEMICIRCLE
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 44N156W 1017 MB. WITHIN 120 NM N
SEMICIRCLE...AND WITHIN 180 NM SE AND 360 NM SW QUADRANTS WINDS
20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 46N148W 1016 MB. WITHIN 180 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST OVER FORECAST WATERS WITHIN 90 NM EITHER SIDE
OF A LINE FROM 63N165W TO 65N168W AREA OF NW WINDS 20 TO 30 KT.
SEAS TO 8 FT.

.48 HOUR FORECAST WITHIN 180 NM EITHER SIDE OF A LINE FROM
37N175E TO 43N172W AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO 12
FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 39N TO 42N
BETWEEN 173E AND 167E...FROM 39N TO 41N BETWEEN 166W AND
171W...AND WITHIN 120 NM EITHER SIDE OF A LINE FROM 43N159W TO
45N152W TO 48N150W TO 49N146W.
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM EITHER SIDE OF A LINE
FROM 40N161W TO 47N145W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 49N BETWEEN 168W AND
179W...AND OVER FORECAST WATERS WITHIN 120 NM OF 57N176E.

.HIGH 40N146W 1029 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH 41N140W 1027 MB.
.48 HOUR FORECAST HIGH 42N138W 1027 MB.

.HIGH 51N174E 1026 MB MOVING SE 30 KT.
.24 HOUR FORECAST HIGH 47N168W 1025 MB.
.48 HOUR FORECAST HIGH 45N157W 1024 MB.

.24 HOUR FORECAST NEW HIGH 36N159W 1025 MB.
.48 HOUR FORECAST HIGH 34N165W 1023 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 1200 UTC WED AUG 16.
24 HOUR FORECAST VALID 1200 UTC THU AUG 17.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES 18N115.5W 1008 MB. WITHIN 120 NM NE SEMICIRCLE OF LOW
E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 16N121W 1009 MB. WITHIN 180 NM
NE SEMICIRCLE OF LOW E TO SE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW PRES NEAR 16N126W 1008 MB. WITHIN 240 NM N
SEMICIRCLE OF LOW NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT.

.S OF LINE FROM 03.4S90W TO 06N109W TO 07N130W WINDS 20 KT OR
LESS. SEAS TO 9 FT PRIMARILY IN SW SWELL.
.24 HOUR FORECAST S OF 02S BETWEEN 105W AND 115W WINDS 20 KT
OR LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11.5N86W TO
10N88W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.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 1500 UTC WED AUG 16...

.TROPICAL WAVE N OF 05N ALONG 81W. SCATTERED MODERATE TO STRONG
N OF LINE FROM 02N79W TO 07N87W.

.TROPICAL WAVE N OF 07N ALONG 102W...SCATTERED MODERATE ISOLATED
STRONG WITHIN 120 NM OF WAVE.

.LOW PRES 11N107W 1008 MB...SCATTERED MODERATE TO STRONG
WITHIN 120 NM OF LOW.

.LOW PRES 18N115.5W...ISOLATED STRONG WITHIN 120 NM E SEMICIRCLE
OF LOW.

LOW PRES 19N131W 1009 MB...ISOLATED STRONG WITHIN 60 NM OF
17N131W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N78W TO 10N92W TO 12N102W THROUGH LOW PRES
11N107W TO LOW PRES 18N115.5W TO 14N120W TO 13N140W. SCATTERED
MODERATE ISOLATED STRONG ELSEWHERE WITHIN 90 NM OF LINE FROM
07N95W TO 10.5N103W TO 07N109W TO 13.5N123W TO 11N134W TO
12.5N140W.

$$

.FORECASTER NELSON. NATIONAL HURRICANE CENTER.



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