High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 260332
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN FEB 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 26.
24 HOUR FORECAST VALID 0000 UTC FEB 27.
48 HOUR FORECAST VALID 0000 UTC FEB 28.

.WARNINGS.

...GALE WARNING...
.LOW 54N131W 1011 MB MOVING SE 20 KT. OVER FORECAST WATERS
WITHIN 600 NM W SEMICIRCLE WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 46N124W 1004 MB. WITHIN 660 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW MOVED INLAND NEAR 46N120W 1005 MB. WITHIN
780 NM W AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 34N143W 1011 MB MOVING SE 10 KT. OVER FORECAST WATERS
WITHIN 180 NM S SEMICIRCLE AND WITHIN 540 NM NW AND 840 NM NE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW 31N139W 1012 MB. WITHIN 600 NM NW AND 300
NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED S OF AREA AND CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 33N162W 1012 MB MOVING NW 10 KT. OVER FORECAST WATERS
WITHIN 540 NM N AND 240 NM S SEMICIRCLE WINDS 25 TO 35 KT. SEAS
8 TO 17 FT.
.24 HOUR FORECAST LOW 34N166W 1013 MB. WITHIN 480 NM NW...660 NM
NE...AND 480 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 19 FT.
.48 HOUR FORECAST LOW 38N169W 1015 MB. WITHIN 660 NM NE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.LOW NW OF FORECAST AREA 64N177E 989 MB MOVING N 10 KT. FRONT
EXTENDS FROM 58N169W TO 49N178E. OVER ICE FREE FORECAST WATERS
WITHIN 600 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 11 TO 20 FT.
ELSEWHERE WITHIN 360 NM SE AND E OF THE FRONT WINDS 20 TO 30 KT.
SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW WELL NE OF AREA. N OF 56N W OF 172W AND
WITHIN 300 NM SE AND E OF A LINE FROM 58N168W TO 53N178W TO
47N177E WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST N AND NE OF A LINE FROM 54N165W TO 60N178W
WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 37N169E 1016 MB MOVING NE 10 KT. FRONT EXTENDS FROM LOW
CENTER TO 49N178E. OVER FORECAST WATERS WITHIN 480 NM SW AND 240
NM SE AND NW QUADRANTS...WITHIN 300 NM SE AND E OF THE
FRONT...AND WITHIN 240 NM NW OF THE FRONT WINDS 25 TO 35 KT.
SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW 39N172E 1011 MB. WITHIN 480 NM NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED BELOW
WITH LOW 47N167E.

...GALE WARNING...
.24 HOUR FORECAST LOW 41N160E 1007 MB. OVER FORECAST WATERS
WITHIN 360 NM SE...420 NM E...AND 720 NM N QUADRANTS WINDS 25 TO
40 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 47N167E 999 MB. WITHIN 360 NM SW AND 720
NM N QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE
WITHIN 960 NM E SEMICIRCLE AND 720 NM SW QUADRANT WINDS 25 TO 40
KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS NE AND N OF A LINE FROM
48N143W TO 55N160W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 59N143W 1007 MB. WITHIN 360 NM W QUADRANT
WINDS 25 TO 35 KT. SEAS TO 11 FT. ELSEWHERE WITHIN 660 NM SW
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 FT.

.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.

.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 59N AND
W OF 171W.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
WITHIN 120 NM OF 48N177W...AND WITHIN 90 NM OF 42N174E.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 49N BETWEEN 176E AND
170E.

.HIGH 51N157W 1046 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 47N154W 1043 MB.
.48 HOUR FORECAST HIGH 47N157W 1036 MB.

.HIGH 44N168E 1026 MB MOVING NE 30 KT.
.24 HOUR FORECAST HIGH 55N173E 1035 MB.
.48 HOUR FORECAST HIGH 58N178W 1042 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 0000 UTC SUN FEB 26.
24 HOUR FORECAST VALID 0000 UTC MON FEB 27.
48 HOUR FORECAST VALID 0000 UTC TUE FEB 28.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WEAKENING COLD FRONT FROM 30N133W TO BEYOND 24.5N140W. N OF 28N
WITHIN 90 NM E OF FRONT S WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. NW
OF FRONT WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.24 HOUR FORECAST WEAK COLD FRONT FROM 30N128W TO 22N138W. N OF
20N W OF 137W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL. FROM
08N TO 17N W OF 128W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED NW AND NE SWELL.
.48 HOUR FORECAST WEAK COLD FRONT FROM 30N122W TO 21N132W. N OF
28N W OF 135W N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE N OF 26N W OF FRONT WINDS 20 KT OR LESS. SEAS TO 8 FT
IN NW SWELL. FROM 08N TO 14N W OF 133W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED NW AND NE SWELL.

.FROM 22N TO 27N BETWEEN 108W AND 111W...INCLUDING THE
SOUTHERN GULF OF CALIFORNIA...NW TO N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT. FROM 19.5N TO 22N BETWEEN 106W AND 109W WINDS 20
KT OR LESS. SEAS TO 8 FT IN MIXED NW AND N SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.30 HOUR FORECAST GULF OF PAPAGAYO FROM 10.5N TO 11.5N E OF 87W
NE TO E 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 2030 UTC SAT FEB 25...

.WIDELY SCATTERED MODERATE ISOLATED STRONG FROM 03.5N TO 07N
BETWEEN 84W AND 95W.

.WIDELY SCATTERED MODERATE N OF 26.5N WITHIN 90 NM SE OF COLD
FRONT FROM 30N133W TO 24.5N140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ EXTENDS FROM 04N114W TO BEYOND 01.5N140W. ISOLATED MODERATE
CONVECTION NOTED WITHIN 90 NM N OF AXIS BETWEEN 114W AND 130W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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