High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 251536
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT MAR 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 25.
24 HOUR FORECAST VALID 1200 UTC MAR 26.
48 HOUR FORECAST VALID 1200 UTC MAR 27.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 39N171E 992 MB MOVING NE 40 KT AND INTENSIFYING. WITHIN 240
NM S AND SW QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 24 FT.
ELSEWHERE OVER FORECAST WATERS N OF 30N WITHIN 600 NM S
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 19 FT.
.06 HOUR FORECAST LOW 41N176E 981 MB. WITHIN 240 NM S AND 120 NM
W QUADRANTS WINDS 50 TO 65 KT. SEAS 18 TO 28 FT.
.24 HOUR FORECAST LOW 47N170W 973 MB. WITHIN 180 NM S SEMICIRCLE
WINDS 50 TO 65 KT. SEAS 26 TO 34 FT. ELSEWHERE FROM 43N TO 47N
BETWEEN 165W AND 172W WINDS 40 TO 50 KT. SEAS 20 TO 30 FT. ALSO
WITHIN 420 NM E SEMICIRCLE...WITHIN 300 NM SW AND 120 NM NW
QUADRANTS...AND WITHIN 240 NM E OF A FRONT FROM LOW TO 43N163W
TO 33N176W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW 51N164W 978 MB. FROM 45N TO 57N BETWEEN
157W AND 174W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. ALSO WITHIN
420 NM E QUADRANT WINDS TO 25 KT. SEAS 8 TO 15 FT.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 44N176E 980 MB. OVER FORECAST WATERS
WITHIN 300 NM S AND SW QUADRANTS WINDS 40 TO 55 KT. SEAS 18 TO
28 FT. ELSEWHERE WITHIN 600 NM SE AND 720 NM SW QUADRANTS WINDS
25 TO 40 KT. SEAS 11 TO 22 FT...EXCEPT WHERE NOTED ABOVE.
.48 HOUR FORECAST LOW 45N167W 985 MB. WITHIN 300 NM SE AND 720
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

...GALE WARNING...
.LOW 47N150W 989 MB MOVING NE 15 KT. FROM 33N TO 51N BETWEEN
139W AND 156W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 49N142W 981 MB WITH A FRONT FROM LOW TO
53N140W TO 49N131W TO 40N130W. WITHIN 180 NM S AND SW QUADRANTS
WINDS 35 TO 45 KT. SEAS 14 TO 22 FT. ELSEWHERE W OF 140W WITHIN
180 NM W AND N OF FRONT...E OF 140W WITHIN 240 NM E AND N OF
FRONT...FROM 36N TO 50N BETWEEN 130W AND 148W...AND WITHIN 540
NM SW QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 58N143W 985 MB. FROM 55N TO 60N E OF 147W
WINDS 25 TO 35 KT. SEAS 10 TO 16 FT. ALSO  FROM 40N TO 54N E OF
137W WINDS TO 25 KT. SEAS 10 TO 19 FT.

...GALE WARNING...
.LOW 48N174E 973 MB MOVING NW 05 KT. OVER FORECAST WATERS WITHIN
540 NM SE QUADRANT WINDS 35 TO 45 KT. SEAS 24 TO 34 FT.
ELSEWHERE FROM 39N TO 60N W OF 165W...AND FROM 36N TO 54N
BETWEEN 156W AND 176W WINDS 24 TO 40 KT. SEAS 15 TO 30
FT...EXCEPT N OF THE ALEUTIAN ISLANDS AND E OF 159W SEAS 8 TO 16
FT...EXCEPT WHERE NOTED ABOVE.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 48N174E 973 MB
AND NEW SECOND CENTER 51N179W 982 MB. OVER FORECAST WATERS N OF
44N W OF 172E...AND FROM 52N TO 60N W OF 167W WINDS 25 TO 35 KT.
SEAS 9 TO 18 FT...EXCEPT WHERE NOTED ABOVE.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 47N176E 989 MB
AND SECOND CENTER 51N173E 990 MB. EXCEPT WHERE NOTED
ABOVE...WITHIN 540 NM S SEMICIRCLE OF FIRST CENTER WINDS 25 TO
40 KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 420 NM N AND NW
SEMICIRCLES OF SECOND CENTER WINDS TO 25 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 47N150W 989 MB. N OF 31N WITHIN 300 NM
E AND SE OF A FRONT FROM 50N142W TO LOW TO 35N161W WINDS 25 TO
35 KT. SEAS 11 TO 21 FT...EXCEPT WHERE NOTED ABOVE.

...GALE WARNING...
.48 HOUR FORECAST OVER FORECAST WATERS W OF A LINE FROM 30N169E
TO 38N160E AREA OF S TO SE WINDS 25 TO 35 KT. SEAS TO 11 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 59N151W TO
55N160W TO 60N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 57N169W TO 61N176W.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF THE 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 35N120W 1016 MB MOVING E 15 KT. OVER FORECAST WATERS FROM
30N TO 32N E OF 118W WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW MOVED INLAND. FROM 30N TO 36N E OF 123W
AREA OF NW WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 30N TO 40N E OF 128W AREA OF NW WINDS 20
TO 30 KT. SEAS TO 12 FT.

.LOW 57N133W 998 MB MOVING E 20 KT. WITHIN 180 NM SW SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.12 HOUR FORECAST LOW MOVED INLAND AND CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 33N TO 48N
BETWEEN 143W AND 156W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 46N BETWEEN 159W AND
163W.
.48 HOUR FORECAST DENSE FOG FROM 33N TO 46N BETWEEN 145W AND
160W.

.HIGH 39N129W 1022 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 30N137W 1026 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH MOVED S OF AREA.

.24 HOUR FORECAST HIGH 33N153W 1027 MB.
.48 HOUR FORECAST HIGH 35N139W 1029 MB.

.48 HOUR FORECAST HIGH 31N174E 1022 MB.

.FORECASTER KELLS. 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 MAR 25.
24 HOUR FORECAST VALID 1200 UTC SUN MAR 26.
48 HOUR FORECAST VALID 1200 UTC MON MAR 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.DISSIPATING COLD FRONT FROM 30N127W TO 27N133W. W OF LINE
30N129W TO 20N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW
SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN AREA BOUNDED BY
23N130W TO 30N128W TO 30N117W TO 23N127W TO 23N130W WINDS 20 KT
OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.48 HOUR FORECAST N OF 21N W OF 133W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN NW SWELL.

.FROM 08N TO 17N W OF 132W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO
10 FT. ELSEHWERE FROM 02N TO 20N W OF 120W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.24 HOUR FROM 09N TO 11N W OF 138W NE WINDS 20 TO 25 KT. SEAS 8
TO 9 FT. ELSEWHERE FROM 04N TO 23N W OF 126W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 12N TO 18N W OF 131W NE WINDS 20 TO 25
KT. SEAS 9 TO 11 FT. ELSEWHERE FROM W OF LINE FROM 20N120W TO
05N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW
SWELL.

.N OF 28N E OF 117W NW WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST N OF 28N E OF 117W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN NW SWELL.
.48 HOUR FORECAST N OF 27N E OF 120W NW WINDS 20 TO 25 KT. SEAS
TO 9 FT.

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

CONVECTION VALID AT 1500 UTC SAT MAR 25...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 03N108W TO 01N114W TO 03N121W TO 00N132W. SCATTERED
MODERATE WITHIN 60 NM OF THE ITCZ BETWEEN 112W AND 127W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.



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