High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 281049 CCA
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC TUE FEB 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 28.
24 HOUR FORECAST VALID 0600 UTC MAR 01.
48 HOUR FORECAST VALID 0600 UTC MAR 02.

.WARNINGS.

...STORM WARNING...
.LOW 59N144W 998 MB MOVING SE 05 KT THEN REFORMING TO THE W
AFTER 24 HOURS. OVER FORECAST WATERS FROM 57N TO 59N BETWEEN
148W AND 153W WINDS 35 TO 50 KT. SEAS 10 TO 17 FT. ALSO WITHIN
420 NM SW SEMICIRCLE WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
ELSEWHERE N OF A LINE FROM 57N172W TO 47N150W TO 41N140W TO
41N124W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 58N140W 995 MB. N OF 52N BETWEEN 133W AND
143W AND BETWEEN 300 NM AND 420 NM W QUADRANT WINDS 25 TO 40 KT.
SEAS 11 TO 21 FT...EXCEPT W OF 149W 8 TO 13 FT.
.48 HOUR FORECAST LOW 56N146W 997 MB. WITHIN 360 NM NW
SEMICIRCLE AND 180 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 18
FT.

...STORM WARNING...
.24 HOUR FORECAST LOW 41N164E 1002 MB. OVER FORECAST WATERS
WITHIN 180 NM NW SEMICIRCLE WINDS 30 TO 45 KT. SEAS 12 TO 19 FT.
ELSEWHERE FROM 32N TO 36N W OF 174E AND WITHIN 300 NM W QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.
.36 HOUR FORECAST LOW 32N171E 998 MB. WITHIN 300 NM NW
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 12 TO 22 FT.
.48 HOUR FORECAST LOW 33N176E 991 MB. WITHIN 180 NM W AND NW
QUADRANTS WINDS 45 TO 60 KT. SEAS 21 TO 30 FT. ELSEWHERE WITHIN
240 NM NW SEMICIRCLE WINDS 35 TO 50 KT. SEAS 16 TO 24 FT. ALSO
FROM 30N TO 40N BETWEEN 175W AND 167E WINDS 25 TO 40 KT. SEAS 10
TO 20 FT.

...GALE WARNING...
.LOW 49N168E 995 MB MOVING NW 25 KT. OVER FORECAST WATERS WITHIN
360 NM W AND 300 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO
19 FT. ELSEWHERE FROM 39N TO 51N W OF 172E AND WITHIN 240 NM NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW NW OF AREA 56N152E 992 MB. FRONT TO EXTEND
FROM 55N170E TO 44N175W. FROM 49N TO 52N W OF 163E...WITHIN 240
NM NE OF FRONT N OF 49N AND WITHIN 240 NM SW OF FRONT BETWEEN
175W AND 171E WINDS 25 TO 40 KT. SEAS 10 TO 19 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS NW OF AREA.

...GALE WARNING...
.LOW 53N162E 993 MB MOVING NW 15 KT. FRONT EXTENDS FROM 55N162E
TO 51N170E TO 40N179E TO 30N179E. OVER FORECAST WATERS N OF THE
FRONT W OF 177E WINDS 30 TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE
WITHIN 420 NM NE OF FRONT N OF 46N WINDS 25 TO 35 KT. SEAS 8 TO
15 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
W OF AREA 56N152E DESCRIBED ABOVE.

...GALE WARNING...
.LOW 41N169W 1012 MB MOVING NE 20 KT THEN ACCELERATING TO 40 KT
AFTER 24 HOURS. WITHIN 660 NM NE SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 46N163W 1013 MB. EXCEPT WHERE DESCRIBED
WITH LOW W OF AREA 56N152E AND ASSOCIATED FRONT...WITHIN 480 NM
NW AND 360 NM N QUADRANTS AND WITHIN 300 NM E OF A LINE FROM
47N155W TO 35N160W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 52N140W 999 MB. FRONT TO EXTEND FROM LOW
TO 45N143W TO 40N149W. WITHIN 180 NM SE OF FRONT N OF 42N WINDS
25 TO 40 KT. SEAS 10 TO 15 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 48N180W 1008 MB. ASSOCIATED CONDITIONS
INCLUDED WITH LOW W OF AREA AND FRONT DESCRIBED ABOVE.
.48 HOUR FORECAST LOW 49N178E 1009 MB. WITHIN 300 NM NE AND N
AND 240 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 20 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF 59N AND W OF 167W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N152W TO 56N157W TO 57N170W TO 60N179W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N154W TO 56N160W TO 58N170W.

.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 INLAND 48N119W 1005 MB MOVING E 10 KT. WITHIN 900 NM W
QUADRANT WINDS TO 25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS AS
DESCRIBED WITH LOW 58N140W ABOVE.

.FROM 30N TO 36N BETWEEN 120W AND 130W N TO NW WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST FROM 30N TO 37N BETWEEN 120W AND 127W AREA OF
N TO NW WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST FROM 53N TO 60N BETWEEN 155W AND 170 AREA OF N
TO NW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST EXCEPT WHERE DESCRIBED WITH LOW 56N146W IN
WARNINGS SECTION FROM 49N TO 59N BETWEEN 159W AND 168W AREA OF N
TO NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 47N
BETWEEN 160W AND 172W AND OVER FORECAST WATERS FROM 51N TO 54N W
OF 170E.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 47N BETWEEN 154W AND
173W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 48N BETWEEN 140W AND
148W.

.HIGH 44N150W 1035 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 39N139W 1033 MB.
.48 HOUR FORECAST HIGH 36N132W 1034 MB.

.48 HOUR FORECAST HIGH 44N163E 1032 MB.

.FORECASTER BANCROFT. 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 FEB 28.
24 HOUR FORECAST VALID 0600 UTC WED MAR  1.
48 HOUR FORECAST VALID 0600 UTC THU MAR  2.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN AREA BOUNDED BY 11N86W TO 10N88W TO 10N90W TO 12N89W TO
12N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 11N86W TO 10N86W TO
10N88W TO 11N89W TO 12N89W TO 12N87W TO 11N86W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 10N86W TO 09N89W TO
10N90W TO 11N89W TO 12N87W TO 11N86W TO 10N86W...INCLUDING THE
GULF OF PAPAGAYO... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.

.WITHIN AREA BOUNDED BY 19N134W TO 19N140W TO 30N140W TO 30N120W
TO 19N134W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
WITHIN AREA BOUNDED BY 06N128W TO 06N140W TO 13N140W TO 13N127W
TO 06N128W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 15N117W TO 02N122W TO
02N140W TO 30N140W TO 30N119W TO 15N117W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED NE WIND WAVES AND NW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 17N125W TO 17N138W TO
23N139W TO 23N124W TO 17N125W NE TO E WINDS 20 TO 25 KT. SEAS 9
TO 10 FT IN MIXED NE WIND WAVES AND NW SWELL. WITHIN AREA BOUNDED
BY 05N108W TO 04N140W TO 29N140W TO 29N120W TO 05N108W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN NE WIND WAVES AND NW SWELL.

.GULF OF CALIFORNIA COLD FRONT APPROACHING FROM W. N OF 29N SW
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST GULF OF CALIFORNIA COLD FRONT FROM 31N114W TO
23N124W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA 42 HOUR FORECAST S OF 28N NW WINDS 20
TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA LITTLE CHANGE.

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

CONVECTION VALID AT 0900 UTC TUE FEB 28...

.TROUGH FROM 09N117W TO 02N118W. SCATTERED MODERATE WITHIN 90 NM
EITHER SIDE OF TROUGH AXIS.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
NO WELL DEFINED MONSOON TROUGH/ITCZ AT PRESENT.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.



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