High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 300925
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU MAR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 30.
24 HOUR FORECAST VALID 0600 UTC MAR 31.
48 HOUR FORECAST VALID 0600 UTC APR 01.

.WARNINGS.

...STORM WARNING...
.LOW 46N171W 966 MB MOVING NE 25 KT. WITHIN 660 NM E
SEMICIRCLE...AND 360 NM NW AND 780 NM SW QUADRANTS WINDS 40 TO
55 KT. SEAS 13 TO 26 FT...EXCEPT IN SW QUADRANT 20 TO 40 FT.
ELSEWHERE WITHIN 1200 NM S SEMICIRCLE...AND 780 NM NW AND 840 NM
NE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 18 FT...EXCEPT IN SW
QUADRANT 13 TO 27 FT. ALSO WITHIN 1440 NM SE QUADRANT WINDS TO
25 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 52N160W 969 MB. WITHIN 660 NM NW...900 NM
NE...840 NM SE AND 1020 NM SW QUADRANTS WINDS 30 TO 45 KT. SEAS
12 TO 24 FT...EXCEPT IN SW QUADRANT 17 TO 34 FT. ELSEWHERE
WITHIN 780 NM NW AND 1380 NM SW QUADRANTS WINDS 20 TO 30 KT.
SEAS 8 TO 18 FT.
.48 HOUR FORECAST LOW 56N157W 979 MB. WITHIN 540 NM NW...900 NM
SE AND 780 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 14 TO 28
FT...EXCEPT IN NW QUADRANT 9 TO 18 FT. ELSEWHERE WITHIN 660 NM
NW...480 NM NE...1080 NM SE AND 780 NM SW QUADRANTS WINDS TO 25
KT. SEAS 10 TO 20 FT...EXCEPT IN NW QUADRANT TO 12 FT.

...GALE WARNING...
.FROM 30N TO 40N BETWEEN 120W AND 130W WINDS 20 TO 30 KT. SEAS
TO 12 FT.
.24 HOUR FORECAST FROM 30N TO 43N BETWEEN 117W AND 125W WINDS 25
TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE FROM 30N TO 43N BETWEEN
116W AND 130W WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 30N TO 43N BETWEEN 116W AND 130W WINDS 25
TO 35 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.LOW 46N165E 996 MB MOVING SE 10 KT. WITHIN 420 NM S SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 10 TO 17 FT. ELSEWHERE WITHIN 240 NM N
SEMICIRCLE WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 45N170E 997 MB. FROM 43N TO 50N BETWEEN W
OF 176E WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 39N168E 1010 MB MOVING E 30 KT. WITHIN 600 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 39N175W 1007 MB. WITHIN 300 NM SE AND 660
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 21 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 56N157W
DESCRIBED ABOVE.

...GALE WARNING...
.24 HOUR FORECAST LOW 42N172E 996 MB. WITHIN 540 NM S SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE WITHIN 840 NM SW
QUADRANT WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 44N180W 997 MB. WITHIN 240 NM OF LOW
CENTER EXCEPT 900 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 18
FT.

...GALE WARNING...
.48 HOUR FORECAST FROM 47N TO 55N BETWEEN 126W AND 131W WINDS 25
TO 40 KT. SEAS 8 TO 16 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE FROM 55N171W TO
59N179E.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 55N168W TO 55N175W TO 59N179E.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE
FROM 54N165W TO 55N171W TO 60N178W.

.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.

.EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM 30N TO 55N
BETWEEN 116W AND 150W WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM
30N TO 50N BETWEEN 116W AND 140W WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS SECTION ABOVE FROM
30N TO 50N BETWEEN 116W AND 160W WINDS TO 25 KT .SEAS 8 TO 18 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 30N TO 49N
BETWEEN 143W AND 171W.
.24 HOUR FORECAST DENSE FOG FROM 36N TO 56N BETWEEN 133W AND
160W.
.48 HOUR FORECAST DENSE FOG FROM 37N TO 47N BETWEEN 126W AND
140W.

.HIGH 32N139W 1032 MB DRIFTING NE.
.24 HOUR FORECAST HIGH 35N138W 1030 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 40N137W 1030 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 36N133W 1032 MB.
.48 HOUR FORECAST HIGH 35N136W 1030 MB.

.24 HOUR FORECAST NEW HIGH 31N173W 1022 MB.
.48 HOUR FORECAST HIGH 39N149W 1030 MB.

.FORECASTER HOLLEY. 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 THU MAR 30.
24 HOUR FORECAST VALID 0600 UTC FRI MAR 31.
48 HOUR FORECAST VALID 0600 UTC SAT APR 01.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 20N W OF 110W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N115W TO 27N122W. N OF 28N
BETWEEN 118W AND 125W NW TO N WINDS 20 TO 25 KT. SEAS 10 TO 13
FT. ELSEWHERE W OF LINE FROM 28N115W TO 20N130W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN NW SWELL.
.48 HOUR FORECAST FRONT E OF AREA. N OF 28N BETWEEN 121W AND
127W NW TO N WINDS 20 TO 25 KT. SEAS 10 TO 13 FT. ELSEWHERE N OF
22N W OF 114W WINDS 20 KT OR LESS. SEAS TO 10 FT IN NW SWELL.

.W OF LINE 20N110W TO 03N125W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED NW AND NE SWELL.
.24 HOUR FORECAST FROM 05N TO 20N W OF 130W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN MIXED NW AND NE SWELL.
.48 HOUR FORECAST FROM 05N TO 22N W OF 132W WINDS 20 KT OR LESS.
SEAS 8 FT IN MIXED NE AND NW SWELL.

.18 HOUR FORECAST GULF OF CALIFORNIA N OF 28N W TO NW WINDS 20
TO 30 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N113W TO 30N115W. N OF 28N W
TO NW WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST COLD FRONT E OF AREA. 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 THU MAR 30...

SURFACE TROUGH FROM 12N107W TO 06N119W. SCATTERED MODERATE
WITHIN 60 NM N OF TROUGH BETWEEN 110W AND 113W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 05N96W TO 02N130W. NO SIGNIFICANT CONVECTION.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.


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