High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 252148
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT FEB 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FEB 25.
24 HOUR FORECAST VALID 1800 UTC FEB 26.
48 HOUR FORECAST VALID 1800 UTC FEB 27.

.WARNINGS.

...STORM WARNING...
.LOW NW OF FORECAST AREA 63N175E 984 MB MOVING N 10 KT. FRONT
EXTENDS FROM 64N171W TO 60N171W TO 40N171E. WITHIN 360 NM SE
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 21 TO 30 FT. ELSEWHERE WITHIN
540 NM SE SEMICIRCLE AND 300 NM E OF THE FRONT WINDS 25 TO 35
KT. SEAS 12 TO 21 FT.
.24 HOUR FORECAST LOW NW OF FORECAST AREA 66N175E 1011 MB. FRONT
TO EXTEND FROM 58N169W TO 47N178E. OVER FORECAST WATERS WITHIN
540 NM S QUADRANT AND WITHIN 300 NM E OF THE FRONT WINDS 20 TO
30 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW DISSIPATED N OF AREA. N OF 58N AND W OF
170W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 34N144W 1010 MB MOVING SE 10 KT. WITHIN 480 NM N AND 240 NM
S SEMICIRCLES WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
.24 HOUR FORECAST LOW 32N141W 1016 MB. WITHIN 420 NM N AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 30N TO 33N BETWEEN 136W
AND 147W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 33N162W 1012 MB MOVING NW 10 KT. WITHIN 420 NM NW AND 540
NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 34N165W 1012 MB. WITHIN 420 NM NW AND 540
NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
.48 HOUR FORECAST LOW 37N168W 1012 MB. WITHIN 480 NM NE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.

...GALE WARNING...
.LOW 56N135W 1015 MB MOVING SE 30 KT. WITHIN 420 NM W AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.
.24 HOUR FORECAST LOW 47N124W 1004 MB. WITHIN 540 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW 48N124W 1007 MB. WITHIN 780 NM W QUADRANT
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW 36N166E 1015 MB MOVING NE 15 KT. FROM 32N TO 40N BETWEEN
173E AND 163E WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 39N172E 1016 MB. WITHIN 360 NM N
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 43N171E 1007 MB. WITHIN 300 NM E
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS N OF 54N BETWEEN 142W AND
154W AREA OF W TO NW WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST NEW LOW 59N142W 1011 MB. WITHIN 480 NM W AND
SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.36 HOUR FORECAST LOW 43N162E 1009 MB. WITHIN 360 NM W
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 16 FT.
.48 HOUR FORECAST LOW 46N166E 1003 MB. WITHIN 600 NM NE QUADRANT
AND FROM 34N TO 50N W OF 169E WINDS 25 TO 40 KT. SEAS 12 TO 18
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.

.LOW 38N127W 1018 MB MOVING SE 20 KT. WITHIN 240 NM W SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

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

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM SE OF
A LINE FROM 49N178E TO 41N171E.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM SE OF A LINE FROM
48N178E TO 40N172E.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 50N BETWEEN 175E AND
167E.

.HIGH 31N124W 1025 MB MOVING SW 20 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.HIGH 50N157W 1045 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 48N155W 1044 MB.
.48 HOUR FORECAST HIGH 46N154W 1038 MB.

.HIGH W OF AREA 40N158E 1023 MB MOVING NE 35 KT.
.24 HOUR FORECAST HIGH 52N173E 1032 MB.
.48 HOUR FORECAST HIGH 57N180W 1041 MB.

.FORECASTER NOLT. 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 1800 UTC SAT FEB 25.
24 HOUR FORECAST VALID 1800 UTC SUN FEB 26.
48 HOUR FORECAST VALID 1800 UTC MON FEB 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N134W TO BEYOND 25N140W. N OF 28N E OF FRONT
TO 132W S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. NW OF FRONT WINDS
20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL. ELSEWHERE N OF 15N W
OF 131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NW AND NE
SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N129W TO 21N140W.
N OF 21N W OF 136W WINDS 20 KT OR LESS. SEAS 8 TO 9 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 30N123W TO 21N134W. N OF
29N W OF 135W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
ELSEWHERE W OF FRONT TO 131W WINDS 20 KT OR LESS. SEAS TO 8 FT
IN NW SWELL. FROM 08N TO 14N W OF 131W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED NW AND NE SWELL.

.FROM 22N TO 27N BETWEEN 108W AND 111.5W...INCLUDING THE
SOUTHERN GULF OF CALIFORNIA...NW TO N WINDS 20 TO 25 KT. SEAS TO
8 FT S OF 23.5N. FROM 17.5N 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.

.36 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 FROM 10N TO 12N E OF 89W...INCLUDING GULF OF
PAPAGAYO...NE TO E 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 2030 UTC SAT FEB 25...

.WIDELY SCATTERED MODERATE TO STRONG WITHIN 75 NM OF SURFACE
TROUGH FROM 05.5N84W TO 06N93W.

.SURFACE TROUGH FROM 09N108W TO 04.5N113W TO 03N125W. SCATTERED
MODERATE TO STRONG WITHIN 60 NM N OF TROUGH E OF 118.5W.

.ISOLATED MODERATE WITHIN 90 NM SE OF COLD FRONT FROM 30N134W TO
BEYOND 25N140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
NO ITCZ OR MONSOON TROUGH CURRENTLY OVER THE FORECAST WATERS.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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