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Marine Forecast
Expires:No;;448955
FZPN02 KWBC 232325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC FRI FEB 23 2018

CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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). 

SECURITE 

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

SYNOPSIS VALID 1800 UTC FEB 23. 
24 HOUR FORECAST VALID 1800 UTC FEB 24. 
48 HOUR FORECAST VALID 1800 UTC FEB 25. 

.WARNINGS. 

Storm Warning - ... 
.LOW W OF AREA NEAR 40N157E 1002 MB MOVING NE 30 KT. OVER 
FORECAST WATERS WITHIN 600 NM E QUADRANT WINDS 35 TO 45 KT. SEAS 
9 TO 16 FT. ELSEWHERE FROM 32N TO 44N W OF 172E WINDS 25 TO 35 
KT. SEAS 8 TO 13 FT. 
.12 HOUR FORECAST LOW 42N162E 991 MB. WITHIN 150 NM NW...360 NM 
NE...AND 240 NM S AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 12 TO 
21 FT. 
.24 HOUR FORECAST LOW 47N169E 985 MB. WITHIN 240 NM S SEMICIRCLE 
AND 180 NM NW AND 240 NM N QUADRANTS WINDS 45 TO 60 KT. SEAS 12 
TO 24 FT. ELSEWHERE WITHIN 240 NM NW...480 NM NE...300 NM SE... 
AND 240 NM SW QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 18 FT. 
ALSO FROM 37N TO 53N BETWEEN 173W AND 162E WINDS 25 TO 35 KT. 
SEAS 8 TO 16 FT. 
.48 HOUR FORECAST LOW 56N180W 981 MB. BETWEEN 120 NM AND 300 NM 
S SEMICIRCLE WINDS 45 TO 60 KT. SEAS 18 TO 32 FT. ELSEWHERE 
WITHIN 360 NM NW AND N QUADRANTS AND WITHIN 420 NM SE SEMICIRCLE 
WINDS 35 TO 45 KT. SEAS 14 TO 28 FT. OTHERWISE OVER ICE FREE 
FORECAST WATERS N OF A LINE FROM 48N156W TO 48N176E TO 53N167E 
WINDS 25 TO 35 KT. SEAS 10 TO 20 FT...HIGHEST S. 

Storm Warning - ... 
.LOW NW OF AREA NEAR 58N176E 991 MB MOVING NE 10 KT. OVER 
FORECAST WATERS WITHIN 420 NM NE QUADRANT WINDS 40 TO 50 KT. 
SEAS 12 TO 20 FT. ELSEWHERE OVER ICE FREE FORECAST WATERS N OF 
47N W OF 158W WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 
.24 HOUR FORECAST LOW 59N176W 1003 MB. WITHIN 240 NM S QUADRANT 
WINDS 35 TO 45 KT. SEAS 20 TO 31 FT. ELSEWHERE NE OF A LINE FROM 
53N171W TO 57N175E W OF THE ALEUTIAN ISLANDS EXCEPT N OF 61N E 
OF 173W WINDS 25 TO 35 KT. SEAS 12 TO 24 FT. 
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS 
DIMINISHED.

Storm Warning - ... 
.12 HOUR FORECAST NEW LOW 58N153W 1005 MB. WITHIN 540 NM S AND 
780 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. 
.24 HOUR FORECAST LOW 58N144W 985 MB. WITHIN 480 NM S AND 420 NM 
W QUADRANTS WINDS 40 TO 55 KT. SEAS 14 TO 25 FT. ELSEWHERE N OF 
A LINE FROM 46N132W TO 47N146W TO 54N165W BETWEEN 131W AND THE 
ALEUTIAN ISLANDS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. 
.48 HOUR FORECAST LOW 55N131W 995 MB. WITHIN 720 NM SW 
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 14 TO 28 FT. 

Gale Warning - ... 
.LOW 57N134W 1000 MB MOVING SE 15 KT. OVER ICE FREE FORECAST 
WATERS WITHIN 540 NM SW SEMICIRCLE WINDS 25 TO 40 KT. SEAS 12 TO 
22 FT. 
.24 HOUR FORECAST LOW DISSIPATED. FROM 40N TO 50N E OF 130W 
WINDS 20 TO 30 KT. SEAS 10 TO 19 FT. 
.36 HOUR FORECAST CONDITIONS DIMINISHED. 

Gale Warning - ... 
.36 HOUR FORECAST LOW W OF AREA NEAR 42N156E 1005 MB. OVER 
FORECAST WATERS WITHIN 300 NM E QUADRANT WINDS 25 TO 35 KT. SEAS 
9 TO 13 FT. 
.48 HOUR FORECAST LOW 47N163E 1002 MB. OVER FORECAST WATERS FROM 
41N TO 49N W OF 171E WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. 

...HEAVY FREEZING SPRAY WARNING... 
.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS 
NE OF A LINE FROM 61N168W TO 63N173W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N AND 
W OF ALASKA. 

.SYNOPSIS AND FORECAST. 

.OVER FORECAST WATERS FROM 30N TO 40N E OF 126W AREA OF N TO NW 
WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. 
.24 HOUR FORECAST FROM 34N TO 36N BETWEEN 121W AND 124W AREA OF 
N TO NW WINDS TO 25 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST FROM 33N TO 36N BETWEEN 122W AND 124W AREA OF 
N TO NW WINDS TO 25 KT. SEAS TO 11 FT. 

.TROUGH FROM 30N172W TO 36N171W MOVING W 25 KT. FROM 30N TO 36N 
WITHIN 240 NM W OF TROUGH AND FROM 30N TO 33N BETWEEN 153W AND 
160W WINDS TO 25 KT. SEAS TO 11 FT. 
.24 HOUR FORECAST TROUGH DISSIPATED. FROM 30N TO 37N BETWEEN 
154W AND 166W AREA OF E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT. 
.48 HOUR FORECAST NEW TROUGH TO EXTEND FROM 30N169W TO 40N170W. 
FROM 30N TO 40N BETWEEN 155W AND TROUGH AREA OF SE WINDS 20 TO 
30 KT. SEAS 8 TO 13 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AREA BOUNDED 
BY 44N170W TO 47N153W TO 59N169W TO 44N170W...WITHIN AREA 
BOUNDED BY 31N163W TO 37N159W TO 36N171W TO 31N163W...AND WITHIN 
90 NM OF 36N164E. 
.24 HOUR FORECAST DENSE FOG WITHIN AREA BOUNDED BY 38N174E TO 
36N167E TO 44N167E TO 49N172E TO 38N174E AND WITHIN 90 NM OF 
32N164W. 
.48 HOUR FORECAST DENSE FOG FROM 32N TO 37N BETWEEN 162W AND 
170W...FROM 46N TO 53N BETWEEN 159W AND 172W...AND WITHIN 300 NM 
SE OF A LINE FROM 46N173W TO 40N178W. 

.HIGH 45N149W 1041 MB MOVING SE 10 KT. 
.24 HOUR FORECAST HIGH 42N146W 1042 MB. 
.48 HOUR FORECAST HIGH 39N147W 1041 MB. 

.HIGH 44N180W 1037 MB MOVING NE 35 KT. 
.24 HOUR FORECAST HIGH 48N160W 1041 MB. 
.48 HOUR FORECAST HIGH MERGED WITH HIGH 39N147W 1041 MB. 

.HIGH 40N138W 1040 MB NEARLY STATIONARY. 
.24 HOUR FORECAST HIGH DISSIPATED. 

.48 HOUR FORECAST HIGH 45N178E 1029 MB. 

.FORECASTER HUFFMAN. 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 FRI FEB 23.
24 HOUR FORECAST VALID 1800 UTC SAT FEB 24.
48 HOUR FORECAST VALID 1800 UTC SUN FEB 25.

.WARNINGS.

...ASHFALL ADVISORY...
FUEGO VOLCANO AT POSITION 14.3N 90.9W IS CURRENTLY ERUPTING. 
PLUME OF VOLCANIC ASH MAY REACH TO THE SURFACE THROUGH EARLY
SATURDAY N OF 14N E OF 92W. LOW LEVEL VISIBILITY MAY BE REDUCED 
TO 1 NM OR LESS. MARINERS SHOULD EXERCISE CAUTION. IF MARINERS 
ENCOUNTER VOLCANIC ASH...THEY ARE ENCOURAGED TO REPORT THE 
OBSERVATION TO THE NATIONAL WEATHER SERVICE BY CALLING 
305-229-4425.

.SYNOPSIS AND FORECAST.

.GULF OF PAPAGAYO WITHIN AREA BOUNDED BY 11N86W TO 10N86W TO 
09N90W TO 09N91W TO 11N92W TO 11N91W TO 11N86W NE TO E WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST GULF OF PAPAGAYO FROM 10.5N TO 11.5N E OF 88W
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.N OF 27.5N WITHIN 60 NM W OF BAJA CALIFORNIA PENINSULA...
INCLUDING SEBASTIAN VIZCAINO BAY...NW TO N WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. ELSEWHERE WITHIN AREA BOUNDED BY 30N117W TO 
28N123W TO 28N127W TO 30N126W TO 30N117W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST CONDITIONS MERGE.

.WITHIN AREA BOUNDED BY 18N119W TO 15N117W TO 12N131W TO 12N140W 
TO 21N140W TO 18N119W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 12 FT
IN MIXED NE AND NW SWELL. ELSEWHERE WITHIN AREA BOUNDED BY 
16N112W TO 07N115W TO 03N140W TO 25N140W TO 27N138W TO 16N112W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE AND NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 18N127W TO 15N124W TO
13N127W TO 12N140W TO 20N140W TO 18N127W NE TO E WINDS 20 TO 25 
KT. SEAS 9 TO 12 FT IN MIXED NE AND NW SWELL. ELSEWHERE WITHIN 
AREA BOUNDED BY 30N116W TO 13N112W TO 04N140W TO 18N129W TO 
22N140W TO 30N136W TO 30N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 26N140W TO 23N133W TO
16N140W TO 26N140W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE WITHIN AREA BOUNDED BY 30N117W TO 19N120W TO 13N114W 
TO 09N121W TO 06N140W TO 28N140W TO 30N117W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED NE AND NW SWELL.

.12 HOUR FORECAST GULF OF CALIFORNIA N OF 30N NW TO N WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST GULF OF CALIFORNIA N OF 26N W OF 110.5W NW TO N
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA S OF 27.5N W OF 110W NW TO N
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

CONVECTION VALID AT 2100 UTC FRI FEB 23...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH AXIS EXTENDS FROM 09N83W TO 02N100W. ITCZ AXIS 
EXTENDS FROM 02N100W TO 05N120W TO 07N140W. SCATTERED MODERATE 
CONVECTION WITHIN AREA BOUNDED BY 14N121W TO 07N121W TO 07N128W 
TO 13N135W TO 16N134W TO 20N115W TO 14N121W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC FEB 23 2018.
24 HOUR FORECAST VALID 1800 UTC FEB 24 2018.
48 HOUR FORECAST VALID 1800 UTC FEB 25 2018.

.WARNINGS. 

Gale Warning - ... 
.TROUGH 30N171W 23N166W 11N169W MOVING W SLOWLY. E TO SE WINDS 
20 TO 30 KT N OF LINE 10N140W 14N153W 30N165W. SEE SEAS BELOW. 
ISOLATED TO CATTERED MODERATE TSTMS WITHIN 90 NM OF TROUGH AND N 
OF LINE 30N153W 17N167W. 
.24 HOUR FORECAST TROUGH 30N170W 22N167W 11N169W. E TO SE WINDS 
30 TO 35 KT N OF 27N BETWEEN 156W AND 163W. E TO SE WINDS 20 TO 
30 KT ELSEWHERE N OF LINE 08N140W 08N150W 18N160W 30N168W. SEE 
SEAS BELOW. 
.48 HOUR FORECAST NEW LOW 28N170W 1016 MB. TROUGH 30N170W TO LOW 
TO 22N168W 15N170W. E TO SE WINDS 30 TO 35 KT N OF 24N BETWEEN 
157W AND 166W. E TO SE WINDS 20 TO 30 KT ELSEWHERE N OF LINE 
09N140W 10N155W 17N160W 30N168W. 

.SYNOPSIS AND FORECAST. 

.NE TO E WINDS 20 TO 25 KT FROM 06N TO 21N W OF 178W. 
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 17N W OF 
178E. 
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 16N W OF 
178E. 

.24 HOUR FORECAST NEW FRONT 30N166E 27N160E. 
.48 HOUR FORECAST FRONT 30N170E 27N160E. 

.24 HOUR FORECAST NEW TROUGH 30N177W 24N178W. 
.48 HOUR FORECAST TROUGH 30N179E 23N178W. 

.RIDGE 30N175E 25N160E MOVING NNE SLOWLY. 

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST 
AREA. 

.SEAS 8 TO 11 FT N OF LINE 05N140W 15N160W 30N162W. SEAS 8 TO 9 
FT W OF 179W BETWEEN 07N AND 19N...AND N OF 28N BETWEEN 172W AND 
177W. 
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF LINE 04N140W 05N157W 
30N164W. SEAS 8 TO 9 FT W OF 175E BETWEEN 06N AND 17N. 
.48 HOUR FORECAST SEAS 8 TO 12 FT N OF LINE 05N140W 05N155W 
30N169W. SEAS 8 TO 9 FT W OF 165E BETWEEN 11N AND 15N. 

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. 

.ISOLATED MODERATE TSTMS WITHIN 90 NM OF POINT 05N167E. 

.ITCZ 07N140W 08N161W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF 
ITCZ...AND WITHIN 90 NM OF LINE 17N155W 14N151W 12N146W. 

$$ 

.FORECASTER POWELL. HONOLULU HI.



US Forecasts are Public Domain and derived from the
National Weather Service - (IWIN) and the National Oceanic Atmospheric Administration (NOAA)
Canadian forecasts are obtained from and are copyright of Environment Canada.

All weather information provided by MarineWaypoints.com should be used with caution.
We cannot guarantee that the data provided here is 100% accurate or up to date!


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