East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 171125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC WED APR 17 2024 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 0600 UTC APR 17. 
24 HOUR FORECAST VALID 0600 UTC APR 18. 
48 HOUR FORECAST VALID 0600 UTC APR 19. 

.WARNINGS. 

...STORM WARNING... 
.LOW 52N157W 997 MB MOVING NW 05 KT. FRONT EXTENDS FROM 57N165W 
TO 52N156W TO 45N150W TO 38N149W. BETWEEN 420 NM AND 600 NM W 
QUADRANT AND WITHIN 600 NM E OF THE FRONT WINDS 30 TO 45 KT. 
SEAS 9 TO 17 FT. ELSEWHERE FROM 40N TO 59N BETWEEN 179W AND 139W 
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.12 HOUR FORECAST LOW 54N158W 994 MB. WITHIN 420 NM NE QUADRANT 
WINDS 35 TO 50 KT. SEAS 12 TO 19 FT.
.24 HOUR FORECAST LOW 53N159W 994 MB. BETWEEN 300 NM AND 360 NM 
NE QUADRANT AND BETWEEN 90 NM AND 480 NM W AND SW QUADRANTS 
WINDS 35 TO 50 KT. SEAS 12 TO 23 FT. ELSEWHERE N OF 34N BETWEEN 
135W AND 177W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST LOW 50N155W 996 MB. WITHIN 420 NM W AND SW 
QUADRANTS AND N OF 57N W OF 148W WINDS 35 TO 50 KT. SEAS 17 TO 
21 FT. ELSEWHERE WITHIN 300 NM N AND E OF A FRONT TO EXTEND FROM 
56N157W TO 54N145W TO 40N138W AND N OF 38N BETWEEN 150W AND 173W 
 WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. 

...GALE WARNING... 
.LOW JUST W OF AREA NEAR 38N159E 994 MB MOVING N 10 KT. FROM 30N 
TO 48N W OF 175E WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. 
.24 HOUR FORECAST LOW W OF AREA NEAR 43N156E 999 MB. FROM 30N TO 
50N W OF 176E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST LOW DISSIPATED W OF AREA. FROM 37N TO 50N 
BETWEEN 169E AND 179W AND FROM 33N TO 41N W OF 165E WINDS TO 25 
KT. SEAS TO 9 FT. 

...GALE WARNING... 
.FROM 32N TO 44N BETWEEN 122W AND 129W AREA OF N WINDS 25 TO 35 
KT. SEAS TO 10 FT. 
.24 HOUR FORECAST FROM 35N TO 45N BETWEEN 122W AND 129W AREA OF 
N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 
.48 HOUR FORECAST FROM 41N TO 45W E OF 127W WINDS TO 25 KT. SEAS 
TO 10 FT. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY N OF 58N W OF 170W. ELSEWHERE 
LIGHT TO MODERATE FREEZING SPRAY N OF 56N W OF 170W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 57N W OF 
166W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE 
FROM 58N175E TO 54N167W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE 
FROM 59N170E TO 54N178E TO 55N168W. 

.SYNOPSIS AND FORECAST. 

.LOW 33N148W 1011 MB MOVING N 05 KT. WITHIN 360 NM W QUADRANT 
AND FROM 30N TO 40N BETWEEN 149W AND 139W WINDS 20 TO 30 KT. 
SEAS 8 TO 11 FT. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 

.FROM 47N TO 50N E OF 128W WINDS TO 25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST CONDITIONS DISSIPATED. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 55N 
BETWEEN 145W AND 153W...N OF 52N BETWEEN 171W AND 155W. 
.24 HOUR FORECAST DENSE FOG FROM 40N TO 48N W OF 170E AND N OF 
47N BETWEEN 158W AND 167W. 
.48 HOUR FORECAST DENSE FOG FROM 41N TO 51N W OF 175E AND WITHIN 
180 NM E OF A LINE FROM 58N168W TO 53N170W TO 45N159W.

.FORECASTER MUSONDA. 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 0600 UTC WED APR 17.
24 HOUR FORECAST VALID 0600 UTC THU APR 18.
48 HOUR FORECAST VALID 0600 UTC FRI APR 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 13N131W TO 14N135W TO 10N135W TO 10N132W TO 10N130W TO
13N131W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE 
WITHIN 12N113W TO 21N131W TO 16N140W TO 07N140W TO 05N116W TO 
12N113W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NW AND S 
SWELL. REMAINDER OF AREA WITHIN 30N118W TO 30N122W TO 19N122W TO 
15N115W TO 14N109W TO 20N107W TO 30N118W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 12N121W TO 16N134W TO 14N140W TO 
08N140W TO 06N121W TO 07N116W TO 12N121W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN E TO SE SWELL. .48 HOUR FORECAST WITHIN 
12N133W TO 15N140W TO 07N140W TO 07N137W TO 10N132W TO 12N133W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 01N104W TO 02N111W TO 03.4S116W TO 
03.4S95W TO 01N104W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW 
SWELL.

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

CONVECTION VALID AT 0830 UTC WED APR 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 08N78W TO 06N95W. ITCZ FROM 06N95W TO 05N115W TO 
BEYOND 08N135W TO 08N140W. SCATTERED MODERATE FROM 05N TO 07N 
BETWEEN 133W AND 135W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC APR 17 2024.
24 HOUR FORECAST VALID 0600 UTC APR 18 2024.
48 HOUR FORECAST VALID 0600 UTC APR 19 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 26N152W 1013 MB MOVING NE 15 KT. FRONT FROM LOW TO
30N152W...AND FROM 30N144W TO 25N147W TO 20N153W THENCE
TROUGH TO 16N158W. MOVING E SLOWLY. S TO SE WINDS 20 TO
25 KT N OF 26N E OF FRONT. ISOLATED MODERATE TSTMS WITHIN
210 NM OF FRONT N OF 25N.
.24 HOUR FORECAST LOW DISSIPATED. FRONT FROM 30N141W TO
21N147W...THENCE TROUGH TO 16N153W. WINDS DECREASED TO 20 KT
OR BELOW.
.48 HOUR FORECAST FRONT FROM 29N140W TO 24N145W.

.FRONT FROM 30N167E TO 25N165E TO 20N160E MOVING E SLOWLY.
S OF SE WINDS 20 TO 25 KT N OF 27N WITHIN 240 NM E FRONT.
ISOLATED MODERATE TSTMS N OF 25N WITHIN 210 NM E OF FRONT.
.24 HOUR FORECAST FRONT FROM 30N170E TO 25N165E. WINDS
DECREASED TO 20 KT OR BELOW.
.48 HOUR FORECAST FRONT WEAKENED TO A TROUGH FROM 30N173E TO
26N168E.

.WINDS 20 TO 25 KT FROM 10N TO 15N BETWEEN 178W AND 170W.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE FROM 30N180W TO
05N175E TO 05N160W TO 25N160W.
.48 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE FROM 20N180W TO
10N170E TO 05N175E...AND FROM 20N TO 25N BETWEEN 180W AND 160W.

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

.SEAS 8 TO 12 FT N OF LINE FROM 25N160E TO 20N175E TO 10N180W TO
10N160W TO 30N145W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 05N TO 25N BETWEEN 180W
AND 165W.
.48 HOUR FORECAST SEAS SUBSIDING TO BELOW 8 FT.

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

.ITCZ FROM 05N140W TO 03N166W. SCATTERED MODERATE WITHIN 210 NM
OF ITCZ BETWEEN 170W AND 160W.



$$

.FORECASTER PECHACEK. HONOLULU HI.