High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 280948
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAR 28.
24 HOUR FORECAST VALID 0600 UTC MAR 29.
48 HOUR FORECAST VALID 0600 UTC MAR 30.

.WARNINGS.

...STORM WARNING...
.LOW 37N161E 980 MB MOVING NE 30 KT. OVER FORECAST WATERS WITHIN
480 NM S QUADRANT WINDS 40 TO 50 KT. SEAS 12 TO 27 FT. ELSEWHERE
W OF A LINE FROM 30N177E TO 40N175E WINDS 25 TO 40 KT. SEAS 9 TO
18 FT.
.24 HOUR FORECAST LOW 41N176E 971 MB. WITHIN 600 NM S AND 300 NM
W QUADRANTS WINDS 40 TO 55 KT. SEAS 20 TO 36 FT. ELSEWHERE FROM
30N TO 47N BETWEEN 165W AND 160E WINDS 25 TO 40 KT. SEAS 9 TO 18
FT...EXCEPT S OF 40N 12 TO 28 FT.
.48 HOUR FORECAST LOW 46N170W 967 MB. WITHIN 720 NM S QUADRANT
WINDS 40 TO 50 KT. SEAS 22 TO 42 FT. ELSEWHERE WITHIN 960 NM S
QUADRANT WINDS 25 TO 40 KT. SEAS 11 TO 22 FT.

...GALE WARNING...
.LOW 49N165W 989 MB MOVING E 20 KT. WITHIN 300 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 17 FT. ELSEWHERE WITHIN
600 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO 17 FT.
.24 HOUR FORECAST LOW 51N153W 1003 MB. WITHIN 540 NM S QUADRANT
WINDS TO 25 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.FROM 30N TO 38N E OF 124W N TO NW WINDS 25 TO 35 KT. SEAS 8 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
20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 49N166E 992 MB DRIFTING SW 5 KT THEN MOVING E 10 KT AFTER
24 HOURS. WITHIN 240 NM W AND SW 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 420 NM S AND SW QUADRANTS WINDS 25 TO 35 KT.
SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 47N167E 999 MB. WITHIN 480 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 49N165W 968 MB. OVER FORECAST WATERS
FROM 46N TO 57N BETWEEN 180W AND 149W WINDS 30 TO 45 KT. SEAS 11
TO 21 FT...EXCEPT N OF THE ALEUTIAN ISLANDS SEAS 8 TO 11 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 51N136W 1005 MB MOVING NE 25 KT. OVER FORECAST WATERS
WITHIN 600 NM S AND SE QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO
18 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 53N156W 992 MB MOVING NE 20 KT. OVER FORECAST WATERS WITHIN
360 NM W QUADRANT WINDS TO 25 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 58N147W 996 MB. WITHIN 420 NM E QUADRANT
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 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 34N132W 1032 MB NEARLY STATIONARY THEN MOVING W 15 KT
AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 33N133W 1031 MB.
.48 HOUR FORECAST HIGH 32N137W 1029 MB.

.HIGH 33N171W 1019 MB MOVING NE 40 KT.
.24 HOUR FORECAST HIGH 36N150W 1024 MB.
.48 HOUR FORECAST HIGH 39N138W 1029 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 0600 UTC TUE MAR 28.
24 HOUR FORECAST VALID 0600 UTC WED MAR 29.
48 HOUR FORECAST VALID 0600 UTC THU MAR 30.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.E OF LINE FROM 25N116W TO 30N123W NW TO N WINDS 20 TO 25 KT.
SEAS 9 TO 11 FT. ELSEWHERE N OF 21N W OF 111W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 119W AND 124W N WINDS 20 TO
25 KT. SEAS 12 TO 13 FT. ELSEWHERE N OF 20N W OF 110W WINDS 20
KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.48 HOUR FORECAST N OF 20N W OF 110W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN NW SWELL.

.FROM 11N TO 21N W OF 128W NE WINDS 20 TO 25 KT. SEAS 9 TO 12
FT. ELSEWHERE W OF LINE FROM 21N119W TO 10N120W TO 02N140W WINDS
20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST W OF LINE 20N110W TO 01N140W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST W OF LINE FROM 20N110W TO 06N122W TO 04N140W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.

.GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA FROM 26N TO 28N NW 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 0900 UTC TUE MAR 28...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

ITCZ FROM 05N89W TO 02N105W. SCATTERED MODERATE ISOLATED STRONG
WITHIN 30 NM OF AXIS BETWEEN 90W AND 97W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.


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