High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 112213
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE DEC 11 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

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 1800 UTC DEC 11.
24 HOUR FORECAST VALID 1800 UTC DEC 12.
48 HOUR FORECAST VALID 1800 UTC DEC 13.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 49N170W 987 MB MOVING NE 35 KT. WITHIN 300 NM S AND SW
QUADRANTS WINDS 35 TO 50 KT. SEAS 15 TO 30 FT. ELSEWHERE FROM
40N TO 51N BETWEEN 158W AND 178E WINDS 25 TO 40 KT. SEAS 13 TO
26 FT. .24 HOUR FORECAST LOW 55N143W 973 MB. WITHIN 240 NM W AND
300 NM SW QUADRANTS WINDS 40 TO 55 KT. SEAS 16 TO 32 FT.
ELSEWHERE FROM 42N TO 58N BETWEEN 130W AND 152W WINDS 25 TO 40
KT. SEAS 12 TO 28 FT.
.30 HOUR FORECAST LOW 56N142W 968 MB. WITHIN 180 NM W AND 240 NM
S AND SW QUADRANTS WINDS 50 TO 65 KT. SEAS 18 TO 34 FT.
.48 HOUR FORECAST LOW INLAND 58N133W 988 MB. FROM 54N TO 60N E
OF 146W WINDS 30 TO 40 KT. SEAS 16 TO 29 FT.

...STORM WARNING...
.LOW INLAND 61N150W 969 MB WILL REMAIN NEARLY STATIONARY NEXT 24
HOURS. WITHIN 480 NM SW QUADRANT WINDS 30 TO 45 KT. SEAS 10 TO
22 FT. ELSEWHERE FROM 42N TO 58N BETWEEN 132W AND 157W WINDS 25
TO 40 KT. SEAS 12 TO 26 FT.
.24 HOUR FORECAST LOW 61N149W 983 MB. WITHIN 240 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST NEW LOW 57N153W 992 MB. WITHIN 300 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 22 FT.

...STORM WARNING...
.24 HOUR FORECAST LOW W OF AREA 38N156E 988 MB. FROM 32N TO 42N
W OF 170E WINDS 30 TO 45 KT. SEAS 9 TO 19 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 47N175E 968 MB.
WITHIN 120 NM NW...240 NM SW AND 480 NM S QUADRANTS...AND 300 NM
SE OF FRONT FROM 44N174W TO 40N179E TO 35N174E WINDS 40 TO 55
KT. SEAS 18 TO 34 FT. ELSEWHERE FROM 32N TO 50N BETWEEN 165W AND
162E WINDS 30 TO 45 KT. SEAS 12 TO 27 FT.

...GALE WARNING...
.LOW 51N173E 994 MB MOVING E 20 KT. WITHIN 540 NM S AND 600 NM
SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 20 FT.
.24 HOUR FORECAST LOW 53N178W 997 MB. FROM 45N TO 53N BETWEEN
172W AND 175E WINDS 25 TO 40 KT. SEAS 10 TO 22 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST LOW 53N172E 1000 MB. WITHIN 360 NM S AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 13 TO 26 FT.
.48 HOUR FORECAST LOW 53N174E 1000 MB. WITHIN 240 NM NE AND 240
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 62N165W 982 MB. WITHIN 300 NM NW
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 60N165W 985 MB. WITHIN 360 NM NW QUADRANT
WINDS 25 TO 35 KT. SEAS TO 12 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 42N142W 984 MB. FROM 33N TO 47N
BETWEEN 135W AND 150W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 62N W OF
ALAKSKA.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF
ALASKA.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 38N BETWEEN 120W AND 126W AREA OF NW TO N WINDS TO
25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST FROM 30N TO 38N BETWEEN 120W AND 125W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. 48 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 39N TO 46N BETWEEN 170W AND 179E.

.HIGH 33N148W 1034 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 32N136W 1032 MB.
.48 HOUR FORECAST HIGH 32N130W 1027 MB.

.24 HOUR FORECAST HIGH 36N177W 1034 MB.
.48 HOUR FORECAST HIGH 34N159W 1032 MB.

.48 HOUR FORECAST NEW HIGH 35N126W 1027 MB.

.FORECASTER ROWLAND. 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 TUE DEC 11.
24 HOUR FORECAST VALID 1800 UTC WED DEC 12.
48 HOUR FORECAST VALID 1800 UTC THU DEC 13.

.WARNINGS.

...GALE WARNING...
.WITHIN 60 NM EITHER SIDE OF A LINE FROM 16N95W TO 14.5N95.5W TO
13N96.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
40 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 90 NM EITHER SIDE OF A
LINE FROM 16N95W TO 14.5N95.5W TO 11.5N98W N TO NE WINDS 20 TO
30 KT. SEAS 9 TO 18 FT. FROM 09.5N TO 13N BETWEEN 98W AND 103W
NE TO E WINDS 20 TO 25 KT. SEAS 11 TO 15 FT. REMAINDER OF AREA
FROM 05.5N TO 14.5N BETWEEN 92W AND 107W WINDS 20 KT OR LESS.
SEAS TO 11 FT IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14N95.5W TO 12N96.5W...INCLUDING GULF OF TEHUANTEPEC...N TO
NE WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 01.5N TO
14N BETWEEN 910W AND 110W WINDS 20 KT OR LESS. SEAS TO 11 FT IN
NE SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEA CONDITIONS MERGED
WITH PARAGRAPH BELOW.

.SYNOPSIS AND FORECAST.

.WITHIN 60 NM OF LINE FROM 11N86W TO 07.5N90W...INCLUDING GULF
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM
07N TO 11N BETWEEN 90W AND 92W WINDS 20 KT OR LESS. SEAS TO 9 FT
IN MERGING NW AND NE SWELL.
.24 HOUR FORECAST WITHIN 750 NM OF LINE FROM 11.5N86W TO
09N90W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS
8 TO 10 FT. ELSEWHERE FROM 07.5N TO 11.5N E OF 91W WINDS 20 KT
OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.DISSIPATING COLD FRONT FROM 30N116W TO 26.5N124W TO 23.5N135W.
FROM 10N TO 25N W OF 129W NE WINDS 20 TO 25 KT. SEAS 10 TO 14
FT. ELSEWHERE W OF LINE FROM 30N116W TO 24N114W TO 15N117W TO
03.4S108W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NW
SWELL.
.24 HOUR FORECAST FRONT DISSIPATED. FROM 12N TO 25N W OF 127W NE
WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE W OF A LINE FROM
30N116W TO 20N110W TO 03.4S116W WINDS 20 KT OR LESS. SEAS 8 TO
11 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 14N TO 20N BETWEEN 132W AND 138W NE WINDS
20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE W OF LINE FROM 30N120W
TO 21N130W TO 05N92W TO 00N103W TO 00N113W TO 03.4S113W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.

.42 HOUR FORECAST GULF OF CALIFORNIA N OF 29.5N NW WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2030 UTC TUE DEC 11...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 05N76W TO 03N80W TO 05N93W. ITCZ FROM 05N93W
TO 09.5N125W TO BEYOND 06.5N140W. SCATTERED MODERATE ISOLATED
STRONG CONVECTION FROM 02N TO 05N BETWEEN 77.5W AND 81W.
SCATTERED MODERATE TO STRONG CONVECTION FROM 06.5N TO 15N
BETWEEN 115W AND 137W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.


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