North Pacific High Seas Forecast

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FZPN01 KWBC 301539
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC TUE APR 30 2024 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC APR 30. 
24 HOUR FORECAST VALID 1200 UTC MAY 01. 
48 HOUR FORECAST VALID 1200 UTC MAY 02. 

.WARNINGS. 

...GALE WARNING... 
.LOW 53N169E 973 MB MOVING SE 15 KT. WITHIN 360 NM S QUADRANT 
WINDS 30 TO 45 KT. SEAS 20 TO 30 FT. ELSEWHERE WITHIN 540 NM 
NE...540 NM S...AND 360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 
9 TO 16 FT...EXCEPT S OF LOW CENTER SEAS 12 TO 24 FT. 
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 51N177E 1002 MB. 
FROM 45N TO 51N BETWEEN 173W AND 173E WINDS 25 TO 35 KT. SEAS 12 
TO 20 FT. ELSEWHERE FROM 50N TO 55N BETWEEN 158W AND 175W WINDS 
TO 25 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 55N154W 1002 MB. 
FROM 43N TO 51N BETWEEN 150W AND 168W AND FROM 45N TO 60N 
BETWEEN 138W AND 155W WINDS 20 TO 30 KT. SEAS TO 12 FT.  

...GALE WARNING... 
.FROM 30N TO 40N BETWEEN 120W AND 128W AREA OF N WINDS 20 TO 30 
KT. SEAS 8 TO 14 FT.
.06 HOUR FORECAST FROM 30N TO 40N BETWEEN 120W AND 128W AREA OF 
N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST FROM 30N TO 40N BETWEEN 120W AND 128W AREA OF 
N WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LITTLE CHANGE

...GALE WARNING... 
 .12 HOUR FORECAST LOW WELL W OF AREA. FROM 38N TO 48N W OF 165E 
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW W OF AREA 49N158W 985 MB. FROM 37N TO 51N 
W OF 168E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 
.48 HOUR FORECAST LOW 50N167E 976 MB. WITHIN 420 NM SW 
QUADRANT...N OF 51N W OF 180W...AND WITHIN 300 NM SE OF A LINE 
FROM 50N180W TO 42N174W TO 37N163W WINDS 25 TO 40 KT. ELSEWHERE 
N OF 42N W OF 175W WINDS TO 25 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST. 

.LOW 47N127W 1014 MB MOVING SE 15 KT. WITHIN 240 NM SW QUADRANT 
WINDS 20 TO 30 KT. SEAS 8 TO 16 FT. 
.24 HOUR FORECAST LOW DISSIPATED INLAND WITH ASSOCIATED 
CONDITIONS DIMINISHED. 

.LOW 50N148W 1011 MB MOVING NE 10 KT WILL TURN SE AFTER 24 
HOURS. WITHIN 240 NM NE...420 NM SE...AND 180 NM SW QUADRANTS 
WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMNISHED. 

.LOW 53N159W 1008 MB MOVING E 15 KT. WITHIN 180 NM W SEMICIRCLE 
WINDS TO 25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED WITH 
LOW 52N144W ABOVE. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 57N W 
OF 175E...FROM 38N TO 44N BETWEEN 154W AND 165W. 
.24 HOUR FORECAST DENSE FOG FROM 40N TO 45N BETWEEN 145W AND 
158W...FROM 49N TO 59N BETWEEN 163W AND 180W...AND FROM 44N TO 
50N W OF 169E. 
.48 HOUR FORECAST DENSE FOG FROM 41N TO 49N BETWEEN 136W AND 
148W...FROM 48N TO 55N W OF 180W AND N OF 57N W OF ALASKA. 

.LIGHT FREEZING SPRAY N OF 58N BETWEEN 167W AND 178W. 
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 59N W OF 171W. 
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 60N W OF 176W. 

.FORECASTER KREKELER. 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 1200 UTC TUE APR 30.
24 HOUR FORECAST VALID 1200 UTC WED MAY  1.
48 HOUR FORECAST VALID 1200 UTC THU MAY  2.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30N117W TO 30N129W TO 27N128W TO 25N126W TO 24N122W TO
27N117W TO 30N117W N WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN N
SWELL.
.24 HOUR FORECAST WITHIN 30N117W TO 30N133W TO 26N133W TO 
23N129W TO 25N118W TO 30N117W N WINDS 20 TO 25 KT. SEAS 8 TO 11 
FT IN N SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 22N134W TO 26N140W TO 05N140W TO 05N128W TO 22N134W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 15N126W TO 24N140W TO 06N140W TO
09N122W TO 15N126W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT IN
NE SWELL.
.48 HOUR FORECAST WITHIN 15N126W TO 24N140W TO 06N140W TO 
09N122W TO 15N126W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE 
SWELL.

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

CONVECTION VALID AT 1500 UTC TUE APR 30...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 11N95W TO 08N105W. ITCZ FROM 
08N105W TO 09N125W...AND FROM 07N131W TO BEYOND 06N140W. 
SCATTERED MODERATE TO ISOLATED STRONG FROM 05N TO 08N BETWEEN 81W
AND 84W...FROM 10N TO 12N BETWEEN 86W AND 88W...AND WITHIN 60 NM
EITHER SIDE OF THE ITCZ BETWEEN 100W AND 120W. 

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.