High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 201609
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

SYNOPSIS VALID 1200 UTC JAN 20.
24 HOUR FORECAST VALID 1200 UTC JAN 21.
48 HOUR FORECAST VALID 1200 UTC JAN 22.

.WARNINGS.

...STORM WARNING...
.LOW 46N135W 975 MB MOVING NE 10 KT. FROM 38N TO 44N BETWEEN
137W AND 143W AND BETWEEN 60 NM AND 420 NM SW QUADRANT WINDS 40
TO 55 KT. SEAS 24 TO 42 FT. ELSEWHERE WITHIN 300 NM N...600 NM W
AND SW AND 960 NM SE QUADRANTS N OF 32N WINDS 25 TO 40 KT. SEAS
15 TO 32 FT. ALSO E OF A LINE FROM 53N148W TO 51N159W TO 45N160W
TO 30N143W AND W OF 123W WINDS 20 TO 30 KT. SEAS 10 TO 17 FT.
.24 HOUR FORECAST LOW 47N132W 980 MB. FROM 39N TO 44N BETWEEN
130W AND 135W WINDS 35 TO 45 KT. SEAS 21 TO 36 FT. ELSEWHERE
WITHIN 420 NM W QUADRANT AND E OF A LINE FROM 42N139W TO 30N127W
WINDS 25 TO 35 KT. SEAS 12 TO 21 FT.
.48 HOUR FORECAST LOW 50N139W 984 MB. EXCEPT WHERE NOTED WITH
LOW 46N133W BELOW...BETWEEN 180 NM AND 360 NM E QUADRANT AND
WITHIN 360 NM W AND 480 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS
12 TO 24 FT.

...STORM WARNING...
.LOW 46N160E 993 MB MOVING NE 20 KT. OVER FORECAST WATERS W OF A
LINE FROM 48N165E TO 41N169E TO 32N164E WINDS 35 TO 50 KT. SEAS
12 TO 19 FT. ELSEWHERE FROM 30N TO 49N W OF 171E WINDS 25 TO 35
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 49N169E 995 MB. FRONT TO EXTEND FROM LOW
TO 50N178E TO 45N179W. BETWEEN 120 NM AND 240 NM N SEMICIRCLE
AND WITHIN 180 NM NE AND E OF FRONT WINDS 25 TO 40 KT. SEAS 10
TO 16 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
49N177E DESCRIBED BELOW.

...STORM WARNING...
.LOW 40N159W 1012 MB MOVING E 40 KT. WITHIN 300 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 720 NM
W...600 NM SW AND 360 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 8
TO 13 FT.
.24 HOUR FORECAST LOW 40N140W 992 MB. FROM 30N TO 41N BETWEEN
143W AND 158W WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
.48 HOUR FORECAST LOW 46N133W 966 MB. WITHIN 180 NM OF LOW
EXCEPT W QUADRANT WINDS 45 TO 60 KT. SEAS 14 TO 27 FT. ELSEWHERE
FROM 33N TO 45N BETWEEN 124W AND 150W WINDS 30 TO 45 KT. SEAS 12
TO 18 FT.

...STORM WARNING...
.24 HOUR FORECAST LOW 40N162E 983 MB. FRONT TO EXTEND FROM LOW
TO 44N179E. WITHIN 180 NM SE AND S OF FRONT WINDS 35 TO 50 KT.
SEAS 14 TO 28 FT. ELSEWHERE WITHIN 360 NM E...SE AND S OF FRONT
WINDS 25 TO 35 KT. SEAS 10 TO 17 FT.
.48 HOUR FORECAST LOW 49N177E 954 MB. BETWEEN 180 NM AND 780 NM
S QUADRANT...BETWEEN 240 NM AND 600 NM SE QUADRANT...AND WITHIN
360 NM N SEMICIRCLE WINDS 45 TO 60 KT. SEAS 24 TO 41 FT.
ELSEWHERE OVER FORECAST WATERS W OF A LINE FROM 54N175W TO
47N161W TO 42N160W TO 30N180W WINDS 30 TO 45 KT. SEAS 12 TO 24
FT.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 46N143W 983 MB. WITHIN 240 NM SW
QUADRANT WINDS 40 TO 50 KT. SEAS 21 TO 31 FT. ELSEWHERE WITHIN
300 NM S AND 420 NM SW AND W QUADRANTS WINDS 25 TO 40 KT. SEAS
12 TO 21 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
46N133W ABOVE.

...GALE WARNING...
.LOW INLAND NEAR 62N159W 993 MB MOVING SE 15 KT. OVER FORECAST
WATERS WITHIN 300 NM W AND 180 NM S QUADRANTS WINDS 25 TO 35 KT.
SEAS IN ICE FREE WATERS 8 TO 14 FT. ELSEWHERE N OF A LINE FROM
45N159W TO 45N178E WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 59N150W 996 MB. WITHIN 300 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 60N147W 1000 MB. FROM 56N TO 60N BETWEEN
150W AND 157W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF A LINE FROM 57N163W TO 56N170W TO 60N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N158W TO 57N166W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N151W TO 57N155W TO 61N178W.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF BOGOSLOF 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 DESCRIBED IN WARNINGS SECTION ABOVE LIGHT TO MODERATE
FREEZING SPRAY OVER FORECAST WATERS N OF A LINE FROM 50N172E TO
53N170W TO 56N160W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 58N151W TO 53N160W TO 54N170W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 55N150W TO 54N157W TO 58N178E.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
WITHIN 180 NM SE OF A LINE FROM 46N179E TO 40N165W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 49N BETWEEN 164W AND
175E.

.HIGH 34N180W 1034 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 34N168W 1035 MB.
.48 HOUR FORECAST HIGH 33N158W 1032 MB.

.HIGH 56N148W 1004 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.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 1200 UTC FRI JAN 20.
24 HOUR FORECAST VALID 1200 UTC SAT JAN 21.
48 HOUR FORECAST VALID 1200 UTC SUN JAN 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA TROUGH FROM 31N113W TO 26N120W. N OF 29N SW
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA TROUGH DISSIPATED. NEW COLD
FRONT ALONG 30N. N OF 28N W WINDS 20 TO 30 KT. SEAS 8 FT. .48
HOUR FORECAST GULF OF CALIFORNIA FRONT DISSIPATED. WINDS 20 KT OR
LESS. SEAS LESS THAN 8 FT.

.COLD FRONT FROM 30N132W TO 29N140W. N OF 28N E OF FRONT TO 125W
E WINDS 20 TO 25 KT. SEAS 14 TO 16 FT. ELSEWHERE N OF 24N
BETWEEN 120W AND 140W WINDS 20 KT OR LESS. SEAS 12 TO 14 FT IN NW
SWELL. REMAINDER OF AREA W OF LINE FROM 30N115W TO 07N140W WINDS
20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 29N114W TO 25N125W. N OF FRONT
E OF 125W NW WINDS 20 TO 25 KT. SEAS 12 TO 22 FT IN NW SWELL. N
OF 28N W OF 135W SW WINDS 20 TO 25 KT. SEAS 16 TO 20 FT IN NW
SWELL. ELSEWHERE N OF 21N WINDS 20 KT OR LESS. SEAS 12 TO 23 FT
IN NW SWELL. REMAINDER OF AREA 23N120W TO 05N140W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. NEW COLD FRONT FROM
30N127W TO 22N135W. N OF 26N WITHIN 180 NM E OF FRONT SW WINDS 20
TO 25 KT. SEAS 14 TO 19 FT IN NW SWELL. W OF FRONT NW WINDS 20 TO
30 KT. SEAS 12 TO 22 FT IN NW SWELL. ELSEWHERE N OF 15N WINDS 20
KT OR LESS. SEAS 12 TO 15 FT IN NW SWELL. REMAINDER OF AREA N OF
22N110W TO 18N105W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 12
FT IN NW SWELL.

.ENTIRE AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 1500 UTC FRI JAN 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 04N91W TO 05N101W TO 04N113W TO 07N135W TO 07N140W. NO
SIGNIFICANT CONVECTION.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.



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