High Seas Forecast
Issued by NWS

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000
FZPN02 KWBC 240525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC SAT FEB 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FEB 24.
24 HOUR FORECAST VALID 0000 UTC FEB 25.
48 HOUR FORECAST VALID 0000 UTC FEB 26.

.WARNINGS.

...STORM WARNING...
.LOW 41N160E 1001 MB MOVING NE 30 KT. WITHIN 300 NM S OF A LINE
FROM 45N160E TO 45N166E TO 44N170E TO 41N172E...AND FROM 36N TO
41N BETWEEN 166E AND 175E...ALSO FROM 37N TO 41N W OF 163E WINDS
30 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE FROM 35N TO 45N W OF
178E WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 50N172E 987 MB. FROM 47N TO 51N BETWEEN
168E AND 171E WINDS 40 TO 55 KT. SEAS 15 TO 24 FT. ELSEWHERE
FROM 42N TO 54N BETWEEN 166E AND 180W...ALSO BETWEEN 180W AND A
LINE EXTENDING FROM 54N180W TO 50N172W TO 44N180W WINDS 30 TO 45
KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW 57N174W 981 MB. FROM 51N TO 57N BETWEEN
178E AND 168W WINDS 40 TO 60 KT. SEAS 18 TO 35 FT. ELSEWHERE
FROM 50N TO 62N BETWEEN 174E AND 160W WINDS 30 TO 45 KT. SEAS 10
TO 22 FT.

...STORM WARNING...
.LOW 59N179E 994 MB MOVING E 10 KT. FROM 49N TO 63N W OF
167W...AND WITHIN 120 NM NE OF A LINE FROM 60N169W TO 58N162W
WINDS 30 TO 45 KT. SEAS 10 TO 24 FT. ELSEWHERE N OF 49N W OF
154W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.12 HOUR FORECAST LOW 60N179W 999 MB. WITHIN 180 NM S SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 20 TO 32 FT.
.24 HOUR FORECAST LOW 60N171W 1009 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 25 FT. ELSEWHERE BETWEEN
60N AND A LINE EXTENDING FROM 57N177W TO 53N160W WINDS 20 TO 30
KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...STORM WARNING...
.24 HOUR FORECAST LOW 58N140W 987 MB. BETWEEN 59N AND A LINE
FROM 55N150W TO 53N138W WINDS 40 TO 60 KT. SEAS 15 TO 33 FT.
ELSEWHERE N OF A LINE FROM 54N160W TO 48N140W TO 48N129W WINDS
25 TO 40 KT. SAS 10 TO 22 FT.
.48 HOUR FORECAST LOW DISSIPATED. BETWEEN 57N AND A LINE
EXTENDING FROM 50N145W TO 40N136W TO 40N124W WINDS 25 TO 35 KT.
SEAS 12 TO 24 FT.

...GALE WARNING...
.WITHIN 300 NM S AND SW OF A LINE FROM 58N141W TO 56N134W TO
52N129W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.48 HOUR FORECAST LOW 49N165E 1002 MB. FROM 44N TO 51N W OF 173E
WINDS 30 TO 45 KT. SEAS 12 TO 21 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF 62N AND W OF ALASKA.
.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 125W AREA OF N TO NW
WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST FROM 31N TO 41N BETWEEN 119W AND 126W AREA OF
N TO NW WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 31N TO 36N BETWEEN 120W AND 125W AREA OF
N TO NW WINDS TO 25 KT. SEAS TO 9 FT.

.S OF 34N BETWEEN 155W AND 162W...ALSO S OF 37N BETWEEN 173W AND
178W WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST S OF A LINE FROM 40N170W TO 36N160W TO 30N156W
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST WITHIN 540 NM E AND NE OF A LINE FROM 36N169W
TO 30N165W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 56N
BETWEEN 156W AND 161W...ALSO 32N TO 38N BETWEEN 160W AND 165W.
.24 HOUR FORECAST DENSE FOG FROM 38N TO 50N BETWEEN 167W AND
178E.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 54N BETWEEN 154W AND
162W...FROM 32N TO 39N BETWEEN 162W AND 171W.

.HIGH 44N147W 1041 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 41N145W 1041 MB.
.48 HOUR FORECAST HIGH 39N148W 1040 MB.

.HIGH 45N175W 1039 MB MOVING E 30 KT.
.24 HOUR FORECAST HIGH 44N157W 1040 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST HIGH 35N162E 1026 MB.
.48 HOUR FORECAST HIGH 45N176W 1029 MB.

.FORECASTER SHAW. 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 SAT FEB 24.
24 HOUR FORECAST VALID 0000 UTC SUN FEB 25.
48 HOUR FORECAST VALID 0000 UTC MON FEB 26.

.WARNINGS.

...ASHFALL ADVISORY... FUEGO VOLCANO AT POSITION 14.3N 90.9W IS
CURRENTLY ERUPTING. PLUME OF VOLCANIC ASH MAY REACH TO THE
SURFACE. LOW LEVEL VISIBILITY MAY BE REDUCED TO 6 NM OR LESS N
OF 14N E OF 93W. 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.

.WITHIN AREA BOUNDED BY 20N140W TO 20N132W TO 14N115W TO 14N125W
TO 20N140W NE WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE
WITHIN AREA BOUNDED BY 25N140W TO 17N114W TO 04N120W TO 04N140W
TO 25N140W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED
NE AND NW SWELL.
.24 HOUR FORECAST WITHIN 120 NM OF LINE FROM 17N140W TO 13N120W
NE WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN AREA
BOUNDED BY 30N128W TO 30N119W TO 23N113W TO 10N114W TO 06N140W
TO 25N140W TO 30N128W WINDS 20 KT OR LESS. SEAS TO 10 FT
PRIMARILY IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 17N TO 27N BETWEEN 137W AND 140W NE WINDS
20 TO 25 KT. SEAS TO 10 FT. ELSEWHERE WITHIN AREA BOUNDED BY
30N126W TO 30N119W TO 12N117W TO 08N140W TO 27N140W TO 30N126W
WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED NE AND NW
SWELL.

.WITHIN 75 NM OF LINE FROM 12N87W TO 11N89W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.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 TO 10 FT. ELSEWHERE WITHIN AREA BOUNDED BY 30N124W TO
30N116W TO 28N115W TO 30N124W WINDS 20 KT OR LESS. SEAS TO 10
FT PRIMARILY IN NW SWELL.
.12 HOUR FORECAST FROM 24N TO 28N WITHIN 180 NM W OF BAJA
CALIFORNIA PENINSULA N WINDS 20 TO 25 KT. SEAS TO 10 FT.
ELSEWHERE WITHIN AREA BOUNDED BY 30N130W TO 30N116W TO 24N113W
TO 30N130W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN NW
SWELL.
.24 HOUR FORECAST CONDITIONS MERGE.

.GULF OF CALIFORNIA N OF 30N NW TO N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.12 HOUR FORECAST GULF OF CALIFORNIA FROM 26N TO 31N NW WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF CALIFORNIA S OF 29N NW WINDS 20 TO 25
KT. SEAS TO 8 FT.
.30 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 0300 UTC SAT FEB 24...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH AXIS EXTENDS FROM 04N90W TO 01N103W TO 03N109W.
ITCZ AXIS EXTENDS FROM 03N109W TO 06N120W TO 05N130W TO 07N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN AREA BOUNDED BY
15N135W TO 14N105W TO 02N126W TO 15N135W.

.FORECASTER NELSON. NATIONAL HURRICANE CENTER.

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

SYNOPSIS VALID 0000 UTC FEB 24 2018.
24 HOUR FORECAST VALID 0000 UTC FEB 25 2018.
48 HOUR FORECAST VALID 0000 UTC FEB 26 2018.

.WARNINGS.

...GALE WARNING...
.TROUGH 30N174W 23N167W 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. SEE SEAS BELOW.

.SYNOPSIS AND FORECAST.

.FRONT FAR W OF AREA MOVING E 10 KT.
.24 HOUR FORECAST FRONT 30N168E 27N160E.
.48 HOUR FORECAST FRONT 30N170E 27N160E.

.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 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.



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