High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 170335
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED JAN 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 17.
24 HOUR FORECAST VALID 0000 UTC JAN 18.
48 HOUR FORECAST VALID 0000 UTC JAN 19.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 41N148W 970 MB MOVING NE 30 KT. WITHIN 240 NM SW QUADRANT
WINDS 55 TO 75 KT. SEAS 22 TO 42 FT. ELSEWHERE WITHIN 420 NM
SE...360 NM SW...AND 180 NM NW QUADRANTS WINDS 40 TO 55 KT. SEAS
18 TO 32 FT. ALSO WITHIN 780 NM NE...660 NM SE...900 NM SW...AND
1140 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 27 FT.
.24 HOUR FORECAST LOW 49N136W 963 MB. BETWEEN 180 NM AND 360 NM
S SEMICIRCLE WINDS 50 TO 65 KT. SEAS 28 TO 47 FT. ELSEWHERE
BETWEEN 120 NM AND 480 NM S SEMICIRCLE WINDS 40 TO 50 KT. SEAS
24 TO 38 FT. ALSO WITHIN 480 NM N AND E...840 NM S...AND 1020 NM
W QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 27 FT.
.48 HOUR FORECAST LOW 50N134W 976 MB. WITHIN 540 NM SW AND 420
NM W QUADRANTS WINDS 40 TO 55 KT. SEAS 24 TO 34 FT. ELSEWHERE
WITHIN 360 NM N...240 NM E...1020 NM S...AND 600 NM W QUADRANTS
WINDS 25 TO 40 KT. SEAS 16 TO 32 FT...HIGHEST SE.

...STORM WARNING...
.LOW 51N165E 982 MB MOVING NE 10 KT. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 14 TO 20 FT. ELSEWHERE OVER FORECAST
WATERS WITHIN 300 NM NE...840 NM SE...660 NM S...AND 240 NM W
QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 21 FT.
.24 HOUR FORECAST LOW 54N171E 983 MB. WITHIN 360 NM NE...1020 NM
SE...AND 420 NM SW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 26 FT.
.48 HOUR FORECAST LOW 55N173E 1002 MB. WITHIN 120 NM N...300 NM
NE...540 NM SE...AND 180 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS
9 TO 17 FT.

...STORM WARNING...
.24 HOUR FORECAST INTENSIFYING LOW 42N173E 1011 MB. WITHIN 240
NM SE AND 420 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 17
FT.
.48 HOUR FORECAST LOW 47N166W 992 MB. WITHIN 240 NM SE AND 180
NM SW QUADRANTS WINDS 45 TO 60 KT. SEAS 18 TO 32 FT. ELSEWHERE
WITHIN 420 NM E...540 NM SE...360 NM SW...AND 120 NM NW
QUADRANTS WINDS 30 TO 45 KT. SEAS 14 TO 27 FT...HIGHEST SW.

...STORM WARNING...
.48 HOUR FORECAST LOW W OF AREA 43N159E 969 MB. OVER FORECAST
WATERS WITHIN 360 NM SE QUADRANT WINDS 40 TO 55 KT. SEAS 24 TO
48 FT. ELSEWHERE WITHIN 480 NM NE AND 780 NM SE QUADRANTS WINDS
25 TO 40 KT. SEAS 12 TO 24 FT.

...GALE WARNING...
.LOW 56N149W 973 MB MOVING NW 10 KT. OVER FORECAST WATERS WITHIN
300 NM E SEMICIRCLE AND NE QUADRANT...AND 480 NM E QUADRANT
WINDS 30 TO 45 KT. SEAS 12 TO 23 FT.
.24 HOUR FORECAST LOW 57N154W 989 MB. WITHIN 420 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.FROM 30N TO 32N BETWEEN 180W AND 173E AREA OF E WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST FROM 30N TO 33N BETWEEN 167W AND 176E AREA OF
E TO NE WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW 31N172W 1004 MB. FROM 30N TO 37N BETWEEN
157W AND 177W WINDS 25 TO 40 KT. SEAS 11 TO 21 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY N OF 60N AND W OF ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 62N AND
W OF ALASKA.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N AND
W OF ALASKA.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST OVER ICE FREE FORECAST WATERS N OF 59N BETWEEN
167W AND 175W AREA OF N WINDS 20 TO 30 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 44N
BETWEEN 134W AND 142W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 36N178W 1031 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 37N165W 1034 MB.
.48 HOUR FORECAST HIGH 37N152W 1037 MB.

.HIGH 31N126W 1023 MB NEARLY STATIONARY
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH S OF AREA.

.24 HOUR FORECAST HIGH 33N171E 1026 MB.
.48 HOUR FORECAST HIGH 35N178E 1023 MB.

.48 HOUR FORECAST HIGH 42N180W 1025 MB.

.FORECASTER BELL. 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 WED JAN 17.
24 HOUR FORECAST VALID 0000 UTC THU JAN 18.
48 HOUR FORECAST VALID 0000 UTC FRI JAN 19.

.WARNINGS.

...GALE WARNING...
.WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W...INCLUDING THE
GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 8 TO 15
FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 14.5N95W TO
13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINING
WATERS FROM 01N TO 14N BETWEEN 92W AND 106W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 90 NM OF LINE FROM 16N95W TO 14N95.5W
TO 12N96.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
30 TO 45 KT. SEAS 10 TO 20 FT. ELSEWHERE WITHIN 150 NM OF LINE
FROM 16N95W TO 13N95.5W TO 07.5N101W N TO NE WINDS 20 TO 30 KT.
SEAS 8 TO 16 FT. REMAINING WATERS FROM 04N TO 14.5N BETWEEN 90W
AND 102W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED NW AND NE
SWELL.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO
14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM
16N95W TO 14.5N95W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 9
TO 13 FT. FROM 09N TO 11.5N BETWEEN 97W AND 104W NE TO E WINDS
20 TO 25 KT. SEAS 11 TO 14 FT. REMAINING WATERS FROM 00N TO 15N
BETWEEN 90W AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN
MIXED SWELL.

.SYNOPSIS AND FORECAST.

.WITHIN 45 NM OF LINE FROM 11N86W TO 09N87.5W...INCLUDING THE
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT. ELSEWHERE
FROM 04N TO 10.5N BETWEEN 87.5W AND 92W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N86W TO
09N87.5W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 25
KT. SEAS TO 8 FT. N OF 11.5N BETWEEN 87.5N AND 89W N TO NE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 11N86W TO
09.5N88.5W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25
KT. SEAS TO 8 FT. ELSEWHERE FROM 05N TO 10.5N BETWEEN 87.5N AND
90W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.

.W OF LINE FROM 30N116W TO 15N120W TO 10N125W WINDS 20 KT OR
LESS. SEAS 12 TO 14 FT IN NW SWELL. REMAINING OPEN WATERS W OF
105W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED NW AND NE
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N137W TO 28.5N140W. NW OF
FRONT WINDS 20 KT OR LESS. SEAS 10 TO 16 FT IN NW SWELL.
REMAINING OPEN WATERS W OF 102W WINDS 20 KT OR LESS. SEAS 8 TO
12 FT IN MIXED NW AND NE SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N130W TO 24.5N140W. NW OF
FRONT W OF 134W N TO NE WINDS 20 TO 25 KT. SEAS 13 TO 15 FT IN
NW SWELL. REMAINING OPEN WATERS W OF 100W WINDS 20 KT OR LESS.
SEAS 8 TO 14 FT IN MIXED NW AND NE SWELL...HIGHEST 100W AND
105W.

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

CONVECTION VALID AT 0245 UTC WED JAN 17...

.SCATTERED MODERATE FROM 11N TO 14.5N BETWEEN 107W AND 125W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 05N78.5W TO 08.5N85W TO 05N95W. ITCZ FROM
05N95W TO 09N131W TO BEYOND 08N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 03.5N TO 09N BETWEEN 77W AND 92W. SCATTERED MODERATE
ISOLATED STRONG WITHIN 120 NM N OF THE ITCZ BETWEEN 105W AND
120W. SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG WITHIN
180 NM N AND 60 NM S OF THE ITCZ BETWEEN 120W AND 140W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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