High Seas Forecast
Issued by NWS

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433
FZPN01 KWBC 220510 CCA
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JAN 22.
24 HOUR FORECAST VALID 0000 UTC JAN 23.
48 HOUR FORECAST VALID 0000 UTC JAN 24.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 45N171E 967 MB MOVING NE 25 KT AND RAPIDLY INTENSIFYING
THEN TURNING MORE E AFTER 24 HOURS. FROM 34N TO 43N BETWEEN 179E
AND 163E WINDS 40 TO 55 KT. SEAS 17 TO 32 FT. ALSO OVER FORECAST
WATERS WITHIN 960 NM SE SEMICIRCLE AND 600 NM N AND NW QUADRANTS
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT...EXCEPT IN S AND SW
QUADRANTS 14 TO 27 FT.
.12 HOUR FORECAST LOW 49N175E 951 MB. FRONT TO EXTEND FROM LOW
TO 51N180W TO 50N170W TO 45N161W. WITHIN 240 NM W QUADRANT AND
WITHIN 150 NM NW AND N OF FRONT W OF 173W WINDS 50 TO 65 KT.
SEAS 24 TO 32 FT. ELSEWHERE BETWEEN 240 NM AND 900 NM S AND SE
QUADRANTS W OF 169W AND 360 NM NW SEMICIRCLE AND WITHIN 240 NM N
OF FRONT W OF 165W WINDS 40 TO 55 KT. SEAS 14 TO 36 FT...HIGHEST
IN S QUADRANT.
.24 HOUR FORECAST LOW 51N180W 943 MB. FRONT TO EXTEND FROM
52N180W TO 54N175W TO 50N162W TO 32N172W. WITHIN 300 NM W
SEMICIRCLE...FROM 40N TO 45N BETWEEN 175W AND 175E AND WITHIN
180 NM NW AND N OF FRONT W OF 170W WINDS 50 TO 65 KT. SEAS 24 TO
39 FT. ALSO FROM 37N TO 47N BETWEEN 173W AND 171E...WITHIN 420
NM W AND NW SEMICIRCLES AND WITHIN 240 NM N AND E OF FRONT N OF
40N WINDS 40 TO 55 KT. SEAS 18 TO 33 FT. ELSEWHERE WITHIN 660 NM
NW AND N SEMICIRCLES AND 960 NM S AND SE QUADRANTS AND WITHIN
360 NM NE AND E OF FRONT WINDS 25 TO 40 KT. SEAS 12 TO 27 FT.
.48 HOUR FORECAST LOW 51N165W 961 MB. FROM 42N TO 48N BETWEEN
162W AND 170W AND BETWEEN 240 NM AND 480 NM SW QUADRANT WINDS 40
TO 55 KT. SEAS 26 TO 49 FT. ELSEWHERE BETWEEN 300 NM AND 540 NM
NW AND W QUADRANTS...WITHIN 360 NM SE AND 900 NM S QUADRANTS AND
WITHIN 180 NM NE AND E OF A FRONT FROM 58N155W TO 55N147W TO
34N157W WINDS 25 TO 40 KT. SEAS 18 TO 37 FT...EXCEPT IN BERING
SEA AND E OF FRONT 10 TO 22 FT.

...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN CENTER 39N131W 983 MB MOVING NE 25 KE AND
RAPIDLY INTENSIFYING NEXT 12 HOURS THEN TURNING MORE NW AND
SLOWING AND THEN AFTER 24 HOURS MOVING SE 20 KT. WITHIN 180 NM
SE SEMICIRCLE AND 240 NM W QUADRANT WINDS 35 TO 50 KT. SEAS 18
TO 27 FT. ELSEWHERE FROM 30N TO 42N BETWEEN 125W AND 137W WINDS
25 TO 40 KT. SEAS 15 TO 24 FT.
.12 HOUR FORECAST LOW 44N129W 963 MB. WITHIN 150 NM SE
SEMICIRCLE WINDS 50 TO 65 KT. SEAS 18 TO 28 FT. ELSEWHERE WITHIN
240 NM E AND NE SEMICIRCLES AND 120 NM SW QUADRANT WINDS 35 TO
50 KT. SEAS 15 TO 25 FT.
.24 HOUR FORECAST LOW 46N131W 970 MB. FROM 42N TO 46N BETWEEN
130W AND 140W WINDS 40 TO 55 KT. SEAS 18 TO 30 FT. ELSEWHERE
FROM 30N TO 50N BETWEEN 125W AND 143W WINDS 25 TO 40 KT. SEAS 12
TO 27 FT...HIGHEST NEAR 35N135W.
.48 HOUR FORECAST LOW 41N126W 999 MB. WITHIN 360 NM SW
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 14 TO 29 FT.

...STORM WARNING...
.LOW 45N140W 978 MB MOVING SE 15 KT. FROM 34N TO 45N BETWEEN
143W AND 148W AND WITHIN 240 NM SW QUADRANT WINDS 35 TO 50 KT.
SEAS 15 TO 24 FT. ELSEWHERE WITHIN 660 NM W QUADRANT AND FROM
30N TO 44N BETWEEN 139W AND 155W WINDS AND 300 NM S QUADRANTS
WINDS 25 TO 40 KT. SEAS 12 TO 19 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
46N131W DESCRIBED ABOVE.

...STORM WARNING...
.36 HOUR FORECAST LOW 42N160E 986 MB. FRONT TO EXTEND FROM LOW
TO 40N163E TO 35N160E. WITHIN 180 NM E AND SE OF FRONT WINDS 35
TO 50 KT. SEAS 15 TO 22 FT. ELSEWHERE OVER FORECAST WATERS
WITHIN 240 NM N AND 360 NM E AND SE QUADRANTS AND BETWEEN THE
FRONT AND 169E S OF 42N WINDS 25 TO 40 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW 45N166E 982 MB. FRONT TO EXTEND FROM LOW
CENTER TO 44N173E TO 40N173E TO 30N167E. WITHIN 180 NM N AND E
OF THE FRONT WINDS 35 TO 45 KT. SEAS 16 TO 25 FT. ELSEWHERE W OF
A LINE FROM 49N169E TO 42N179E TO 37N179E TO 30N173E WINDS 25 TO
40 KT. SEAS 12 TO 20 FT.

...GALE WARNING...
.LOW 50N138W 982 MB MOVING W 10 KT NEXT 12 HOURS THEN TURNING S.
EXCEPT WHERE PREVIOUSLY NOTED BETWEEN 240 NM AND 480 NM E
QUADRANT AND 360 NM W QUADRANT WINDS 25 TO 35 KT. SEAS 11 TO 19
FT...HIGHEST SW OF LOW.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
46N131W ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 57N140W 992 MB. WITHIN 180 NM E AND NE
AND 360 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.30 HOUR FORECAST LOW 58N141W 993 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 59N170W TO 60N179W.
.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.

.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 996 MB MOVING SE 05 KT. FROM 51N TO 60N BETWEEN
149W AND 162W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 58N148W 997 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS MERGED WITH LOW
51N165W AND FRONT DESCRIBED IN WARNINGS SECTION.

.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 WITHIN 360 NM SE OF
A LINE FROM 48N172W TO 48N180W TO 44N170E.
.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 33N164W 1034 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 31N151W 1031 MB.
.48 HOUR FORECAST HIGH 30N144W 1032 MB.

.24 HOUR FORECAST HIGH 31N169E 1025 MB.
.48 HOUR FORECAST HIGH 32N173W 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 0000 UTC SUN JAN 22.
24 HOUR FORECAST VALID 0000 UTC MON JAN 23.
48 HOUR FORECAST VALID 0000 UTC TUE JAN 24.

.WARNINGS.

...GULF OF TEHUANTEPEC GALE WARNING...
.30 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.
.33 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94W AND
96W N WINDS 25 TO 35 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W N
TO NE WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 60 NM
OF A LINE FROM 16N95W TO 12N97W WINDS 20 KT OR LESS. SEAS 8 TO
10 FT IN NE SWELL.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N133W TO 26N140W. N OF 27N WITHIN 240 NM E OF
FRONT SW WINDS 20 TO 30 KT. SEAS 16 TO 22 FT IN NW SWELL. W OF
FRONT NW WINDS 20 TO 30 KT. SEAS 14 TO 20 FT IN NW SWELL.
ELSEWHERE NW OF LINE FROM 22N109W TO 17N109W TO 04N140W WINDS 20
KT OR LESS. SEAS 8 TO 24 FT IN NW SWELL...HIGHEST N OF 24N.
.24 HOUR FORECAST COLD FRONT FROM 30N122W TO 23N130W THEN SHEAR
LINE TO 20N140W. N OF 28N WITHIN 90 NM E OF FRONT SW WINDS 20 TO
25 KT. SEAS 14 TO 16 FT IN NW SWELL. N OF 27N W OF FRONT W TO NW
WINDS 20 TO 30 KT. SEAS 15 TO 24 FT IN NW SWELL. WITHIN 180 NM N
OF SHEAR LINE NE WINDS 12 TO 15 FT. ELSEWHERE N OF LINE FROM
16N102W TO 07N109W TO 02N140W WINDS 20 KT OR LESS. SEAS 8 TO 17
FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 28N112W ACROSS BAJA PENINSULA
TO 19N126W THEN SHEAR LINE TO 15N140W. N OF 28N E OF 122W...
INCLUDING GULF OF CALIFORNIA...W TO NW WINDS 20 TO 25 KT. SEAS
12 TO 20 FT IN NW SWELL W OF BAJA. N OF SHEAR LINE TO 21N NE
WINDS 20 TO 25 KT. SEAS 11 TO 14 FT. ELSEWHERE N OF 00N W OF
100W WINDS 20 KT OR LESS. SEAS 8 TO 20 FT IN NW SWELL...HIGHEST
N OF 24N.

.24 HOUR FORECAST FROM 18N TO 24N BETWEEN 105W AND 109W NW WINDS
20 TO 25 KT. SEAS TO 11 FT IN NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS MERGED IN NW SWELL.

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

CONVECTION VALID AT 0300 UTC SUN JAN 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 07N107W TO 11N122W TO 06N140W. NO SIGNIFICANT
CONVECTION.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.



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