High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 280353
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE MAR 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAR 28.
24 HOUR FORECAST VALID 0000 UTC MAR 29.
48 HOUR FORECAST VALID 0000 UTC MAR 30.

.WARNINGS.

...STORM WARNING...
.LOW W OF AREA 36N156E 984 MB MOVING NE 30 KT. OVER FORECAST
WATERS W OF A LINE FROM 30N175E TO 40N168E WINDS 25 TO 40 KT.
SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 41N174E 975 MB. WITHIN 600 NM S QUADRANT
WINDS 40 TO 55 KT. SEAS 20 TO 35 FT. ELSEWHERE FROM 30N TO 45N
BETWEEN 168W AND 160E WINDS 25 TO 40 KT. SEAS 9 TO 18
FT...EXCEPT S OF 40N 14 TO 28 FT.
.48 HOUR FORECAST LOW 44N176W 967 MB. WITHIN 660 NM S QUADRANT
WINDS 40 TO 55 KT. SEAS 22 TO 42 FT. ELSEWHERE WITHIN 840 NM SE
AND 960 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 22 FT.

...GALE WARNING...
.LOW 50N141W 1002 MB MOVING NE 25 KT. WITHIN 480 NM E AND 720 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 51N158W 989 MB MOVING NE 20 KT. OVER FORECAST WATERS WITHIN
360 NM N AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16
FT...HIGHEST S OF THE ALEUTIAN ISLANDS.
.24 HOUR FORECAST LOW 57N148W 995 MB. WITHIN 360 NM E AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.36 HOUR FORECAST LOW 59N148W 995 MB. WITHIN 240 NM OF CENTER
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.LOW 49N167W 988 MB MOVING E 15 KT. WITHIN 720 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 49N159W 999 MB. WITHIN 480 NM S SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 10 TO 16 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 47N179E 995 MB MOVING SE 15 KT. WITHIN 480 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 19 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
41N174E.

...GALE WARNING...
.FROM 30N TO 37N E OF 124W N TO NW WINDS 20 TO 30 KT. SEAS TO 11
FT.
.06 HOUR FORECAST FROM 30N TO 36N BETWEEN 118W AND 124W N TO NW
WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
.24 HOUR FORECAST FROM 30N TO 40N BETWEEN 118W AND 126W N TO NW
WINDS 20 TO 30 KT. SEAS 10 TO 14 FT.
.48 HOUR FORECAST FROM 30N TO 38N BETWEEN 120W AND 126W N WINDS
TO 25 KT. SEAS TO 11 FT.

...GALE WARNING...
.LOW 50N167E 993 MB MOVING SW 10 KT THEN NEARLY STATIONARY AFTER
24 HOURS. WITHIN 420 NM SW AND NW SEMICIRCLES WINDS 20 TO 30 KT.
SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 47N163E 994 MB. OVER FORECAST WATERS
BETWEEN 120 NM AND 480 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS 8
TO 15 FT.
.48 HOUR FORECAST LOW 47N163E 1001 MB. WITHIN 480 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 46N171W 967 MB. OVER FORECAST WATERS
WITHIN 720 NM N SEMICIRCLE WINDS 30 TO 45 KT. SEAS 10 TO 18
FT...EXCEPT N OF THE ALEUTIAN ISLANDS SEAS TO 10 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE FROM 56N167W TO
61N178W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.LOW 59N 143W 994 MB MOVING N 15 KT. OVER FORECAST WATERS WITHIN
240 NM E SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

.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.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM
EITHER SIDE OF A LINE FROM 45N142W TO 34N153W...AND WITHIN 120
NM OF 48N137W.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM EITHER SIDE OF A LINE
FROM 47N127W TO 33N150W...AND FROM 30N TO 41N BETWEEN 170W AND
179W.
.48 HOUR FORECAST DENSE FOG WITHIN 300 NM EITHER SIDE OF A LINE
FROM 45N173W TO 47N161W TO 33N155W.

.HIGH 35N133W 1031 MB NEARLY STATIONARY THEN MOVING W 10 KT
AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 34N132W 1031 MB.
.48 HOUR FORECAST HIGH 33N136W 1029 MB.

.HIGH 33N176W 1018 MB MOVING NE 40 KT.
.24 HOUR FORECAST HIGH 36N157W 1021 MB.
.48 HOUR FORECAST HIGH 38N141W 1026 MB.

.FORECASTER SCOVIL. 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 0000 UTC TUE MAR 28.
24 HOUR FORECAST VALID 0000 UTC WED MAR 29.
48 HOUR FORECAST VALID 0000 UTC THU MAR 30.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 25N E OF A LINE FROM 30N124W TO 25N120W NW WINDS 20 TO 25
KT. SEAS 8 TO 10 FT. ELSEWHERE N OF 21N BETWEEN 112W AND A LINE
FROM 30N125W TO 21N118W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
NW SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 119W AND 124W NW WINDS 20 TO
25 KT. SEAS 10 TO 13 FT.
.48 HOUR FORECAST N OF 28N BETWEEN 122W AND 125W N WINDS 20 TO
25 KT. SEAS 10 TO 11 FT. ELSEWHERE N OF 20N W OF 110W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

.FROM 06N TO 18N W OF 130W...AND FROM 11N TO 16N BETWEEN 125W
AND 130W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE W
OF LINE 30N125W TO 25N130W TO 15N124W TO 05N130W TO 02N140W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.
.06 HOUR FORECAST FROM 08N TO 23N W OF 125W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 12 FT IN MIXED NE AND NW SWELL. ELSEWHERE W OF
LINE 30N116W TO 22N112W TO 10N120W TO 02N140W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST FROM 09N TO 20N W OF 130W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 11 FT. ELSEWHERE W OF LINE 30N116W TO 21N110W
TO 10N120W TO 01N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 04N TO 20N W OF LINE FROM 20N110W TO
03N125W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW
SWELL.

.12 HOUR FORECAST GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA FROM 27N TO 29N NW WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.36 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 0200 UTC TUE MAR 28...

TROUGH FROM 06N85W TO 04N99W. SCATTERED MODERATE ISOLATED STRONG
FROM 04N TO 06N BETWEEN 88W AND 92W...AND WITHIN 60 NM S OF
TROUGH BETWEEN 94W AND 96W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE ITCZ AXIS IS SOUTH OF THE EQUATOR.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



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