High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 202131
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT DEC 20 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 20.
24 HOUR FORECAST VALID 1800 UTC DEC 21.
48 HOUR FORECAST VALID 1800 UTC DEC 22.

.WARNINGS.

...GALE WARNING...
.LOW 57N140W 969 MB MOVING NW 20 KT. FRONT EXTENDS FROM THE LOW
TO 49N128W TO 30N165W. WITHIN 360 NM N SEMICIRCLE AND 420 NM NE
AND SE OF THE FRONT WINDS 25 TO 40 KT. SEAS 11 TO 21 FT.
.24 HOUR FORECAST LOW 59N150W 985 MB. WITHIN 90 NM E QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 49N159W 978 MB MOVING NE 25 KT. BETWEEN A LINE FROM 47N164W
TO 52N134W AND A LINE FROM 36N164W TO 45N134W WINDS 25 TO 40 KT.
SEAS 13 TO 20 FT.
.24 HOUR FORECAST LOW DISSIPATED. FROM 47N TO 54N E OF 154W
WINDS 25 TO 40 KT. SEAS 14 TO 27 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 50N169W 972 MB MOVING E 10 KT. W OF 164W WITHIN 1200 NM
S...1040 NM SW AND 900 NM NW AND N QUADRANTS WINDS 25 TO 40 KT.
SEAS 9 TO 23 FT...EXCEPT IN S QUADRANT 18 TO 30 FT.
.24 HOUR FORECAST LOW 51N162W 987 MB. BETWEEN 360 NM AND 840 NM
SW QUADRANT WINDS 30 TO 40 KT. SEAS 18 TO 27 FT. ELSEWHERE W OF
154W WITHIN 900 NM N AND W AND 1200 NM S QUADRANTS WINDS 25 TO
35 KT. SEAS 10 TO 22 FT.
.48 HOUR FORECAST LOW 54N153W 1002 MB. FROM 38N TO 45N BETWEEN
158W AND 168W WINDS 20 TO 30 KT. SEAS 14 TO 21 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 32N TO 53N W OF 171E WINDS 25 TO 40 KT.
SEAS 9 TO 15 FT.
.48 HOUR FORECAST WITHIN 300 NM E AND SE OF A FRONT TO EXTEND
FROM 57N175E TO 45N176E TO 33N160E WINDS 25 TO 40 KT. SEAS 12 TO
21 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW 47N164E 984 MB. WITHIN 240 NM OF THE LOW
CENTER...EXCEPT WITHIN 420 NM S QUADRANT...WINDS 30 TO 45 KT.
SEAS 12 TO 22 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 35N153W 1015 MB. WITHIN 180 NM S OF A
LINE FROM 43N129W TO 39N145W TO 30N157W WINDS 20 TO 30 KT. SEAS
10 TO 17 FT.
.48 HOUR FORECAST LOW 48N141W 1001 MB WITH FRONT FROM LOW CENTER
TO 30N148W. WITHIN 300 NM E OF THE FRONT AND 360 NM E SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 13 TO 21 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF 60N BETWEEN THE ALASKA COAST AND 170W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE
FORECAST WATERS N OF 60N AND W OF THE ALASKA COAST.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST N OF 30N E OF 123W AREA OF N WINDS 20 TO 30
KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 30N TO 40N BETWEEN 120W AND 125W AREA OF
N WINDS 20 TO 30 KT. SEAS TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 420 NM S OF
A LINE FROM 47N126W TO 46N143W TO 36N155W.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM OF 42N128W AND 43N165E.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 47N BETWEEN 134W AND
141W AND FROM 40N TO 49N BETWEEN 180W AND 177E.

.HIGH 34N162E 1030 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 34N174E 1031 MB.
.48 HOUR FORECAST HIGH 37N175W 1032 MB.

.HIGH 30N135W 1028 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH 34N131W 1030 MB.
.48 HOUR FORECAST HIGH 37N130W 1031 MB.

.FORECASTER LEE. 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 DEC 20.
24 HOUR FORECAST VALID 1800 UTC SUN DEC 21.
48 HOUR FORECAST VALID 1800 UTC MON DEC 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 07N TO 22N W OF 120W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO
13 FT WITH NW SWELL. ELSEWHERE W OF LINE FROM 30N116W TO 08N115W
TO 02N140W WINDS 20 KT OR LESS. SEAS 8 TO 16 FT PRIMARILY IN NW
SWELL...HIGHEST SEAS AT 30N125W.
.24 HOUR FORECAST FROM 08N TO 20N W OF 123W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 13 FT WITH NW SWELL. N OF 29N BETWEEN 119W AND
122W N WINDS 20 TO 25 KT. SEAS 12 TO 13 FT. ELSEWHERE W OF LINE
FROM 30N116W TO 20N110W TO 00N131W WINDS 20 KT OR LESS. SEAS 8
TO 13 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST FROM 07N TO 20N W OF 130W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 12 FT WITH NW SWELL. ELSEWHERE W OF LINE FROM
30N116W TO 15N105W TO 10N105W TO 00N120W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT PRIMARILY IN NW SWELL.

.LOW PRES 08N101W 1011 MB. WITHIN 120 NM NE SEMICIRCLE OF
CENTER WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SW AND NW
SWELL.
.24 HOUR FORECAST LOW PRES DISSIPATED. WITHIN 90 NM
OF 10N107W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SW AND NW
SWELL.
.48 HOUR FORECAST CONDITIONS MERGE.

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

CONVECTION VALID 2100 UTC SAT DEC 20...

.LOW PRES 98N101W...SCATTERED MODERATE ISOLATED STRONG WITHIN 90
NM OF LINE FROM 07N97W TO 09N101W TO 05N113W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 07N78W TO 06N92W. ITCZ FROM 06N92W TO LOW
PRES 08N101W TO 05N140W. SCATTERED MODERATE ISOLATED STRONG
WITHIN 90 NM OF 05N80W. SCATTERED MODERATE WITHIN 30 NM OF LINE
FROM 07N123W TO 07N130W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.



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