####018008020####
FZPN02 KWBC 162325

HSFEPI



HIGH SEAS FORECAST FOR METAREA XII

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2345 UTC TUE APR 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC APR 16. 

24 HOUR FORECAST VALID 1800 UTC APR 17. 

48 HOUR FORECAST VALID 1800 UTC APR 18. 



.WARNINGS. 



...STORM WARNING... 

.COMPLEX LOW WITH MAIN LOW 48N154W 1006 MB MOVING NW 20 KT. 

WITHIN 540 NM NE QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. 

ELSEWHERE FROM 30N TO 45N BETWEEN 140W AND 160W...FROM 45N TO 

57N BETWEEN 139W AND 158W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

.24 HOUR FORECAST LOW 55N157W 991 MB. BETWEEN 90 NM AND 360 NM 

N...BETWEEN 90 NM AND 420 NM NE...AND BETWEEN 120 NM AND 540 NM 

E QUADRANTS WINDS 35 TO 50 KT. SEAS 9 TO 23 FT...HIGHEST NEAR 

57N149W. ELSEWHERE FROM 34N TO 50N BETWEEN 136W AND 150W...FROM 

40N TO 50N BETWEEN 150W AND 175W...AND FROM 50N TO 60N BETWEEN 

136W AND 178W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.

.48 HOUR FORECAST LOW 51N158W 998 MB. WITHIN 660 NM NE...840 NM 

E...1080 NM SE...840 NM S...600 NM W...AND 660 NM NW QUADRANTS 

WINDS 25 TO 40 KT. SEAS 10 TO 19 FT.



...GALE WARNING... 

.LOW W OF AREA NEAR 37N157E 993 MB MOVING NE 10 KT. FROM 30N TO 

45N W OF 173E WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.

.24 HOUR FORECAST LOW W OF AREA NEAR 41N157E 998 MB. FROM 30N TO 

49N W OF 174E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST LOW W OF AREA NEAR 45N157E 1003 MB. FROM 37N 

TO 51N W OF 177E WINDS TO 25 KT. SEAS TO 9 FT.



...GALE WARNING... 

.FROM 34N TO 43N BETWEEN 123W AND 129W AREA OF N WINDS 20 TO 30 

KT. SEAS TO 10 FT. 

.06 HOUR FORCECAST FROM 31N TO 44N BETWEEN 120W AND 129W AREA OF 

N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. 

.24 HOUR FORECAST FROM 33N TO 44N BETWEEN 122W AND 129W AREA OF 

N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 

.30 HOUR FORECAST FROM 33N TO 45N BETWEEN 122W AND 129W AREA OF 

N WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 

.48 HOUR FORECAST FROM 37N TO 44N BETWEEN 124W AND 128W WINDS TO 

25 KT. SEAS TO 10 FT. 



...HEAVY FREEZING SPRAY WARNING... 

.MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF 173W. ELSEWHERE 

LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE FROM 59N170W TO 

55N177E. 

.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 

FROM 58N170W TO 60N178W. ELSEWHERE LIGHT TO MODERATE FREEZING 

SPRAY N OF A LINE FROM 58N165W TO 55N168W TO 54N170W TO 57N176E. 

.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE 

FROM 58N166W TO 58N170W TO 59N172W. ELSEWHERE LIGHT TO MODERATE 

FREEZING SPRAY N OF A LINE FROM 58N164W TO 54N168W TO 55N174W TO 

60N180W. 



.SYNOPSIS AND FORECAST. 



.LOW 50N164W 1005 MB MOVING NE 15 KT. FROM 38N TO 52N BETWEEN 

160W AND 170W...AND N OF THE ALEUTIANS AND E OF 165W WINDS 20 TO 

30 KT. SEAS TO 11 FT...EXCEPT SEAS TO 8 FT IN THE BERING SEA. 

.24 HOUR FORECAST CONDITIONS ABSORBED WITH LOW 55N157W IN 

WARNINGS SECTION ABOVE. 



.WITHIN 420 NM W OF A LINE FROM 46N176E TO 60N171W WINDS 20 TO 

30 KT. SEAS TO 11 FT. 

.24 HOUR FORECAST CONDITIONS ABSORBED WITH LOW 55N157W IN 

WARNINGS SECTION ABOVE. 



.E OF A LINE FROM 47N126W TO 50N130W WINDS TO 25 KT. SEAS TO 8 

FT. 

.24 HOUR FORECAST CONDITIONS DISSIPATED. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 49N 

BETWEEN 145W AND 154W...FROM 50N TO 55N BETWEEN 155W AND 

175W...N OF 55N BETWEEN 160W AND 166W...FROM 50N TO 63N BETWEEN 

168W AND 175W...AND FROM 40N TO 43N W OF 166E.

.24 HOUR FORECAST DENSE FOG FROM 48N TO 55N BETWEEN 159W AND 

164W...N OF THE ALEUTIANS AND E OF 170W...AND FROM 38N TO 47N W 

OF 170E. 

.48 HOUR FORECAST DENSE FOG FROM 47N TO 54N BETWEEN 155W AND 

164W...N OF THE ALEUTIANS BETWEEN 162W AND 170W...FROM 54N TO 

59N W OF 177W...AND FROM 38N TO 51N W OF 175E.



.FORECASTER EHRBAR. 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 APR 16.

24 HOUR FORECAST VALID 1800 UTC WED APR 17.

48 HOUR FORECAST VALID 1800 UTC THU APR 18.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.WITHIN 27N115W TO 30N123W TO 21N124W TO 23N139W TO 09N140W TO

08N103W TO 27N115W...INCLUDING WITHIN 60 NM OF SHORE... WINDS 20

KT OR LESS. S OF 17N SEAS 8 TO 11 FT IN MERGING N AND SW SWELL. N

OF 17N SEAS 8 TO 9 FT IN NW TO N SWELL.

.24 HOUR FORECAST WITHIN 11N119W TO 17N132W TO 12N139W TO 

07N133W TO 09N117W TO 11N119W WINDS 20 KT OR LESS. SEAS 8 TO 10 

FT IN MIXED SWELL.

.48 HOUR FORECAST WITHIN 12N133W TO 13N139W TO 13N140W TO 

08N140W TO 10N135W TO 12N133W WINDS 20 KT OR LESS. SEAS 8 FT IN 

MIXED E AND S SWELL.



.WITHIN 11N90W TO 11.5N91W TO 11N91.5W TO 10.5N91.5W TO

10.5N90.5W TO 11N90W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED E

AND SW SWELL.

.12 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 2010 UTC TUE APR 16...



.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

A TROUGH EXTENDS FROM NEAR 07.5N78W TO 08N87W TO 06N94W. ITCZ 

CONTINUES FROM 06N94W TO 08N129W TO BEYOND 08N140W. SCATTERED 

MODERATE ISOLATED STRONG CONVECTION FROM 05N TO 08N BETWEEN 85W 

AND 93W. SCATTERED MODERATE TO STRONG CONVECTION FROM 04N TO 

09.5N BETWEEN 119W AND 140W. 



$$

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



NATIONAL WEATHER SERVICE HONOLULU HI



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



SYNOPSIS VALID 1800 UTC APR 16 2024.

24 HOUR FORECAST VALID 1800 UTC APR 17 2024.

48 HOUR FORECAST VALID 1800 UTC APR 18 2024.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.LOW 27N153W 1010 MB MOVING NE 15 KT. FRONT FROM LOW TO

30N152W...AND FROM 30N147W TO 20N153W...THENCE TROUGH TO 15N160W

MOVING E SLOWLY. S TO SE WINDS 20 TO 25 KT N OF 24N E OF FRONT.

ISOLATED MODERATE TSTMS N OF 25N BETWEEN 145W AND 151W.

.24 HOUR FORECAST LOW DISSIPATED. FRONT FROM 30N143W TO

21N147W...THENCE TROUGH TO 18N152W. WINDS DECREASED TO 20 KT OR

BELOW.

.48 HOUR FORECAST FRONT FROM 28N140W TO 21N147W.



.FRONT FROM 30N166E TO 21N160E MOVING E SLOWLY. S OF SE WINDS

20 TO 25 KT N OF 25N WITHIN 360 NM E FRONT.

ISOLATED MODERATE TSTMS N OF 25N WITHIN 180 NM E OF FRONT.

.24 HOUR FORECAST FRONT FROM 30N168E TO 20N160E.

.48 HOUR FORECAST FRONT FROM 30N171E TO 24N166E T0 23N160E.



.N TO NE WINDS 20 TO 25 KT N OF 23N BETWEEN 156W AND 179W.

.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 28N TO 20N BETWEEN

165W TO 177E. E WINDS 20 TO 25 KT FROM 13N TO 07N BETWEEN

165W AND 178E.

.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 164W TO 177E. E TO

NE WINDS 20 TO 25 KT FROM 14N TO 05N.



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



.SEAS 12 TO 13 FT N OF 26N BETWEEN 156W AND 162W. SEAS 8 TO 12

FT. SEAS 8 TO 12 FT N OF A LINE FROM 25N148W TO 12N172W TO

14N178E. SEAS 8 TO 10 FT N OF 26N W OF 171E.

.24 HOUR FORECAST SEAS 8 TO 9 FT IN AN AREA BOUNDED BETWEEN

30N150W TO 07N169W TO 13N176E TO 23N180E TO 30N160E TO 30N150W.

.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 25N TO 20N BETWEEN 170W

AND 180W.



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



.ITCZ FROM 06N140W TO 03N166W. SCATTERED MODERATE FROM 07N TO 01N

BETWEEN 155W AND 166W.



$$



.FORECASTER FOSTER. HONOLULU HI.