High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 221109 CCB
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN JAN 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PAN PAN

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

SYNOPSIS VALID 0600 UTC JAN 22.
24 HOUR FORECAST VALID 0600 UTC JAN 23.
48 HOUR FORECAST VALID 0600 UTC JAN 24.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MEAN CENTER 48N174E 958 MB MOVING NE 15 KT
NEXT 12 HOURS WHILE RAPIDLY INTENSIFYING THEN TURNING MORE E.
FRONT EXTENDS FROM LOW TO 50N180W TO 47N170W TO 44N163W. WITHIN
240 NM NW SEMICIRCLE AND WITHIN 180 NM N OF FRONT W OF 170W AND
ALSO FROM 34N TO 44N BETWEEN 175W AND 168E WINDS 40 TO 55 KT.
SEAS 18 TO 36 FT EXCEPT IN NW SEMICIRCLE AND N OF FRONT 14 TO 25
FT. ELSEWHERE OVER FORECAST WATERS WITHIN 960 NM SE
SEMICIRCLE...660 NM SW AND 540 NM, N AND NW QUADRANTS AND WITHIN
420 NM N OF FRONT WINDS 25 TO 40 KT. SEAS 9 TO 19 FT...EXCEPT S
OF 47N W OF 174W 13 TO 27 FT.
.12 HOUR FORECAST LOW 51N180W 945 MB. FRONT TO EXTEND FROM
49N176E TO 52N178W TO 51N167W TO 30N178W. FROM 45N TO 52N
BETWEEN 176E AND 170E AND WITHIN 180 NM NW AND N OF FRONT W OF
170W WINDS 50 TO 65 KT. SEAS 21 TO 35 FT. ELSEWHERE WITHIN 420
NM NW SEMICIRCLE...FROM 37N TO 47N BETWEEN 174W AND 168E AND
WITHIN 240 NM NE AND E OF FRONT N OF 37N WINDS 40 TO 55 KT. SEAS
14 TO 37 FT...HIGHEST IN S QUADRANT.
.24 HOUR FORECAST LOW 50N178W 946 MB. FRONT TO EXTEND FROM
50N179W TO 54N178W TO 55N170W TO 54N163W. BETWEEN 60 NM AND 240
NM SW SEMICIRCLE AND 120 NM NW AND N OF FRONT W OF 172W WINDS 50
TO 70 KT. SEAS 24 TO 38 FT. ALSO FROM 38N TO 47N BETWEEN 170W
AND 175E AND WITHIN 420 NM W SEMICIRCLE AND WITHIN 180 NM N OF
FRONT N OF 54N WINDS 40 TO 55 KT. SEAS 16 TO 31 FT EXCEPT S OF
50N W OF 170W 24 TO 45 FT. ELSEWHERE WITHIN 600 NM NW
SEMICIRCLES AND 960 NM S AND SE QUADRANTS AND WITHIN 300 NM NE
AND E OF FRONT WINDS 25 TO 40 KT. SEAS 12 TO 32 FT...HIGHEST S
OF LOW.
.48 HOUR FORECAST LOW 51N162W 966 MB. FROM 43N TO 50N BETWEEN
158W AND 170W WINDS 35 TO 50 KT. SEAS 25 TO 45 FT. ELSEWHERE
WITHIN 540 NM W...900 NM S AND 360 NM SE QUADRANTS AND WITHIN
180 NM NE AND E OF A FRONT FROM 59N153W TO 58N145W TO 55N144W TO
34N151W WINDS 25 TO 40 KT. SEAS 16 TO 36 FT...EXCEPT IN BERING
SEA AND E OF FRONT 11 TO 22 FT.

...HURRICANE FORCE WIND WARNING...
.LOW 43N129W 970 MB MOVING N 20 KT AND INTENSIFYING NEXT 6 HOURS
THEN TURNING MORE NW AND SLOWING AND AFTER 18 HOURS TURNING SE
20 KT. WITHIN 120 NM S AND SE SEMICIRCLES WINDS 50 TO 65 KT.
SEAS 18 TO 28 FT. ELSEWHERE WITHIN 180 NM E AND S SEMICIRCLES
WINDS 35 TO 50 KT. SEAS 14 TO 22 FT. ALSO FROM 37N TO 46N E OF
135W AND WITHIN 180 NM E OF A FRONT FROM LOW TO 37N126W TO
30N129W WINDS 25 TO 40 KT. SEAS 15 TO 27 FT...HIGHEST NEAR
36N124W.
.24 HOUR FORECAST LOW 45N130W 975 MB. WITHIN 300 NM SW QUADRANT
WINDS 40 TO 50 KT. SEAS 18 TO 32 FT. ELSEWHERE FROM 30N TO 48N
BETWEEN 125W AND 141W WINDS 25 TO 40 KT. SEAS 15 TO 27 FT...
HIGHEST NEAR 34N135W.
.48 HOUR FORECAST LOW 39N124W 1004 MB. WITHIN 300 NM SW AND W
QUADRANTS WINDS 25 TO 40 KT. SEAS 14 TO 26 FT.

...STORM WARNING...
.24 HOUR FORECAST LOW 42N158E 990 MB JUST W OF AREA. OVER
FORECAST WATERS FROM 34N TO 41N W OF 163E AREA OF S TO SE WINDS
35 TO 50 KT. SEAS 15 TO 21 FT. ELSEWHERE WITHIN 300 NM NE
QUADRANT AND FROM 31N TO 42N W OF 165E WINDS 25 TO 40 KT. SEAS
10 TO 15 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 46N162E 982 MB WITH
A FRONT TO EXTEND FROM MAIN LOW TO A SECOND LOW 45N177E 984 MB
TO 42N178E TO 30N170E. WITHIN 180 NM N AND 360 NM S QUADRANTS OF
MAIN LOW WINDS 35 TO 50 KT. SEAS 18 TO 30 FT...HIGHEST S
QUADRANT. ELSEWHERE FROM 30N TO 51N W OF 173E AND WITHIN 180 NM
NE AND S QUADRANTS OF SECOND LOW AND WITHIN 300 NM E OF FRONT E
OF 172E WINDS 30 TO 45 KT. SEAS 12 TO 27 FT.

...GALE WARNING...
.LOW 44N138W 980 MB MOVING SE 15 KT. FROM 31N TO 44N BETWEEN
137W AND 150W AND WITHIN 420 NM W QUADRANT WINDS 30 TO 45 KT.
SEAS 14 TO 24 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
45N130W DESCRIBED ABOVE.

...GALE WARNING...
.LOW 50N139W 982 MB MOVING SW 10 KT NEXT 6 HOURS THEN TURNING S.
EXCEPT WHERE PREVIOUSLY NOTED BETWEEN 240 NM AND 480 NM E
QUADRANT AND 360 NM W AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS
11 TO 19 FT...HIGHEST SW OF LOW.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
45N130W ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 57N140W 994 MB. WITHIN 180 NM E AND NE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF A LINE FROM 58N152W TO 55N158W TO 59N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N153W TO 57N159W TO 58N170W TO 60N179W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 57N163W TO 59N180W.

.SYNOPSIS AND FORECAST...CORRECTED.

.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.

.LOW 60N149W 997 MB MOVING SE 05 KT. FROM 54N TO 60N BETWEEN
148W AND 158W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW AND CONDITIONS MERGED WITH NEW LOW ABOVE.

.EXCEPT AS DESCRIBED IN WARNINGS SECTION ABOVE LIGHT TO MODERATE
FREEZING SPRAY OVER FORECAST WATERS N OF A LINE FROM 54N172E TO
57N170W TO 53N157W TO 58N150W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 56N150W TO 55N160W TO 58N180W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 57N160W TO 56N175E.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 50N
BETWEEN 164W AND 175E.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 50N BETWEEN 155W AND
164W.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 54N BETWEEN 145W AND
149W.

.HIGH 33N160W 1032 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 31N150W 1032 MB.
.48 HOUR FORECAST HIGH 30N143W 1030 MB.

.24 HOUR FORECAST HIGH 30N174E 1024 MB.
.48 HOUR FORECAST HIGH 32N163W 1026 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 SUN JAN 22.
24 HOUR FORECAST VALID 0600 UTC MON JAN 23.
48 HOUR FORECAST VALID 0600 UTC TUE JAN 24.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.27 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94W AND
96W N WINDS 25 TO 35 KT. SEAS TO 8 FT.
.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO
14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE AREA BOUNDED BY LINE
FROM 16N95W TO 13N94W TO 12N96W TO 13N98W TO 16N95W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO
14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE WITHIN 60 NM OF A LINE FROM
14.5N95.5W TO 13.5N96W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE
SWELL.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N129W TO 26N134W TO 23N140W. N OF LINE FROM
27N132W TO 30N122W SW WINDS 20 TO 30 KT. SEAS 17 TO 26 FT IN NW
SWELL. W OF FRONT NW WINDS 20 TO 30 KT. SEAS 14 TO 24 FT IN NW
SWELL. ELSEWHERE NW OF LINE FROM 19N107W TO 14N110W TO 04N129W
TO 04N140W WINDS 20 KT OR LESS. SEAS 8 TO 24 FT IN NW
SWELL...HIGHEST N OF 27N.
.24 HOUR FORECAST COLD FRONT FROM 30N118W TO 26N122W TO 23N128W
THEN SHEAR LINE TO 19N140W. N OF 27N W OF FRONT NW TO N WINDS 20
TO 30 KT. SEAS 15 TO 24 FT IN NW SWELL. N OF SHEAR LINE TO 23N
NE WINDS 20 TO 30 KT. SEAS 12 TO 14 FT. WITHIN 60 NM EITHER SIDE
OF LINE FROM 18N105W TO 22N111W NW WINDS 20 TO 25 KT. SEAS 8 TO
13 FT. ELSEWHERE OUTSIDE GULF OF CALIFORNIA N OF LINE FROM
15N101W TO 05N111W TO 00N140W WINDS 20 KT OR LESS. SEAS 8 TO 17
FT IN NW SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 23N110W TO 17N124W
THEN SHEAR LINE TO 12N140W. N OF LINE FROM 21N110W TO 21N113W NW
WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. W OF LINE FROM 21N140W TO
18N128W TO 12N133W NE WINDS 20 TO 25 KT. SEAS 10 TO 15 FT.
ELSEWHERE ENTIRE AREA OUTSIDE GULF OF CALIFORNIA EXCEPT E OF
LINE FROM 16N99W TO 12N94W TO 03.4S105W AND S OF LINE FROM
05N127W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 19 FT IN NW
SWELL...HIGHEST NEAR 30N124W.

.18 HOUR FORECAST GULF OF CALIFORNIA N OF 30N SW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST COLD FRONT ENTER GULF. GULF OF CALIFORNIA N OF
30N SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. GULF OF
CALIFORNIA BETWEEN 22N AND 24N NW WINDS 20 TO 25 KT. SEAS TO 8
FT.
.48 HOUR FORECAST WEAKENING COLD FRONT NEAR SOUTHERN TIP OF BAJA
PENINSULA. GULF OF CALIFORNIA BETWEEN 26N AND 28N AND N OF 29N W
TO NW 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 0900 UTC SUN JAN 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 06N99W TO 07N109W TO 05N124W TO 07N134W TO 07N140W. NO
SIGNIFICANT CONVECTION.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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