High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 291534
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
ISSUED BY NATIONAL WEATHER SERVICE HONOLULU HI
1630 UTC WED MAR 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAR 29.
24 HOUR FORECAST VALID 1200 UTC MAR 30.
48 HOUR FORECAST VALID 1200 UTC MAR 31.

.WARNINGS.

...STORM WARNING...
.LOW 42N177W 969 MB MOVING NE 25 KT. OVER FORECAST WATERS WITHIN
780 NM SW QUADRANT WINDS 40 TO 55 KT. SEAS 17 TO 34 FT.
ELSEWHERE WITHIN 720 NM E QUADRANT WINDS 35 TO 45 KT. SEAS 12 TO
18 FT. ALSO S OF A LINE FROM 42N160E TO 51N179E TO 51N158W WINDS
25 TO 35 KT. SEAS 9 TO 19 FT.
.24 HOUR FORECAST LOW 48N166W 968 MB. FROM 30N TO 45N BETWEEN
156W AND 176E WINDS 40 TO 50 KT. SEAS 20 TO 41 FT. ELSEWHERE
WITHIN 300 NM N AND NE OF A LINE FROM 50N167W TO 53N157W TO
47N148W WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ALSO FROM 30N TO
60N BETWEEN 171E AND 139W WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW 53N160W 970 MB. FROM 33N TO 53N BETWEEN
172W AND 147W WINDS 35 TO 45 KT. SEAS 18 TO 33 FT. ELSEWHERE
WITHIN 660 NM W...1200 NM S...900 NM E...AND 600 NM N QUADRANTS
AND WITHIN 240 NM NE AND E OF A FRONT FROM 59N147W TO 52N133W TO
44N131W WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.

...GALE WARNING...
.LOW 48N165E 995 MB MOVING SE 10 KT. OVER FORECAST WATERS WITHIN
360 NM S...300 NM W...AND 660 NM N QUADRANTS WINDS 25 TO 35 KT.
SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 46N170E 998 MB. FROM 30N TO 48N W OF 171E
WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 43N177E 999 MB. WITHIN 420 NM S AND SW
QUADRANTS WINDS 35 TO 45 KT. SEAS 14 TO 21 FT. ELSEWHERE WITHIN
780 NM SE AND 900 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO
16 FT.

...GALE WARNING...
.OVER FORECAST WATERS E OF A LINE FROM 37N127W TO 30N127W WINDS
20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST E OF A LINE FROM 42N130W TO 30N129W WINDS 20
TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST E OF A LINE FROM 42N127W TO 30N127W WINDS 25
TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW W OF AREA 38N159E 1003 MB. OVER FORECAST
WATERS FROM 30N TO 42N W OF 165E WINDS 25 TO 40 KT. SEAS 8 TO 14
FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE FROM 54N167W TO
56N169W TO 59N178E.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 55N167W TO 59N179E.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE
FROM 55N165W TO 55N177W TO 59N179E.

.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 48N127W 1006 MB MOVING NE 30 KT. WITHIN 540 NM S QUADRANT
AND FROM 41N TO 47N BETWEEN 152W AND 135W WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW MOVED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 60N148W 997 MB MOVING NE 15 KT. OVER FORECAST WATERS WITHIN
300 NM S SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW MOVED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS FROM 30N TO 46N BETWEEN 176W AND 150W...AND WITHIN 180 NM
NW OF A LINE FROM 46N125W TO 40N129W.
.24 HOUR FORECAST DENSE FOG FROM 30N TO 53N BETWEEN 141W AND
170W.
.48 HOUR FORECAST DENSE FOG FROM 36N TO 53N BETWEEN 131W AND
146W...AND WITHIN 300 NM N OF A LINE FROM 54N140W TO 49N156W.

.HIGH 37N145W 1026 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 39N134W 1030 MB.
.48 HOUR FORECAST HIGH 37N132W 1030 MB.

.HIGH 33N135W 1029 MB MOVING W 15 KT.
.24 HOUR FORECAST HIGH 33N140W 1030 MB.
.48 HOUR FORECAST HIGH 35N137W 1030 MB.

.48 HOUR FORECAST NEW HIGH 32N169W 1025 MB.

.FORECASTER SOMMERVILLE. 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 MAR 29.
24 HOUR FORECAST VALID 1200 UTC THU MAR 30.
48 HOUR FORECAST VALID 1200 UTC FRI MAR 31.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN AREA BOUNDED BY 28N122W TO 28N123W TO 30N124W TO 30N121W
TO 28N122W N WINDS 20 TO 25 KT. SEAS 11 TO 13 FT IN NW TO N
SWELL.
FROM 12N TO 17N W OF 135W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO
11 FT. ELSEWHERE WITHIN AREA BOUNDED BY 10N115W TO 00N140W TO
30N140W TO 30N116W TO 20N109W TO 10N115W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 12N112W TO 02N128W TO
02N140W TO 30N140W TO 30N116W TO 20N108W TO 12N112W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 28N120W TO 28N124W TO
30N127W TO 30N117W TO 28N120W N WINDS 20 TO 25 KT. SEAS 10 TO 13
FT IN NW TO N SWELL. ELSEWHERE WITHIN AREA BOUNDED BY 14N140W TO
27N140W TO 30N134W TO 28N124W TO 29N115W TO 26N117W TO 14N140W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SW AND NW SWELL.
WITHIN AREA BOUNDED BY 11N112W TO 04N140W TO 14N140W TO 14N110W
TO 11N112W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SW AND NW
SWELL.

.36 HOUR FORECAST GULF OF CALIFORNIA FROM 29.5N TO 31N SW TO S
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA N OF 30.5N NW TO N WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 1445 UTC WED MAR 29...

.SCATTERED MODERATE S OF 01S E OF 87W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 07N82W TO 06N92W TO 02N102W. ITCZ AXIS
EXTENDS FROM 02N102W TO 02N116W TO 02N130W. SCATTERED MODERATE
WITHIN 30 NM EITHER SIDE OF TROUGH BETWEEN 82W AND 96W. SCATTERED
MODERATE ISOLATED STRONG FROM 04N TO 06N BETWEEN 100W AND 102W...
FROM 04N TO 06N BETWEEN 123W AND 130W...AND FROM 02N TO 04N
BETWEEN 137W AND 139W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.


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