North Pacific High Seas Forecast

FZPN01 KWBC 202134
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN JUL 20 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

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 JUL 20. 
24 HOUR FORECAST VALID 1800 UTC JUL 21.
48 HOUR FORECAST VALID 1800 UTC JUL 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 60N179W 998 MB MOVING NE 10 KT. WITHIN 540 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 3 M. 
.24 HOUR FORECAST LOW JUST W OF THE AREA 64N174W 1008 MB. N OF
59N BETWEEN 161W AND 168W WINDS TO 25 KT. SEAS TO 2.5 M. 
.48 HOUR FORECAST LOW AND CONDITIONS N OF AREA.

.FROM 35N TO 43N E OF 127W AREA OF NW WINDS TO 25 KT. SEAS TO 2.5
M.  
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 46N159E 1005 MB MOVING SE 25 KT. WITHIN 300 NM SE QUADRANT
WINDS TO 25 KT .SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 44N165E 1006 MB. FROM 38N TO 46N W OF 172E
WINDS TO 25 KT. SEAS LESS THAN 2.5 M. 
.48 HOUR FORECAST LOW 42N167E 1008 MB. CONDITIONS DIMINISHED. 

.24 HOUR FORECAST FROM 51N TO 57N BETWEEN 130W AND 136W AREA OF
NW WINDS TO 25 KT. SEAS TO 2.5 M. 
.48 HOUR FORECAST LITTLE CHANGE. 

.24 HOUR FORECAST FROM 58N TO 60N BETWEEN 147W AND 155W AREA OF
NW WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST LOW 51N169W 1022 MB. WITHIN 300 NM E OF A LINE
FROM LOW TO 47N173W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 57N156W TO  56N154W TO 44N141W TO 44N178W
TO 57N156W.
.24 HOUR FORECAST DENSE FOG WITHIN 420 NM S OF A LINE FROM
54N147W TO 54N161W TO 46N179W TO 48N160E. 
.48 HOUR FORECAST DENSE FOG WITHIN 420 NM S OF A LINE FROM
56N145W TO 47N162E.

.FORECASTER KREKELER. OCEAN PREDICTION CENTER.

NWS 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 SUN JUL 20.
24 HOUR FORECAST VALID 1800 UTC MON JUL 21.
48 HOUR FORECAST VALID 1800 UTC TUE JUL 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 13N131W 1012 MB. WITHIN 16N130W TO 16N131W TO 
16N133W TO 14N133W TO 14N132W TO 15N130W TO 16N130W WINDS 20 KT 
OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST LOW PRES NEAR 13N134W 1011 MB. WITHIN 18N131W 
TO 19N135W TO 18N138W TO 16N140W TO 13N139W TO 15N132W TO 18N131W
NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST LOW PRES NEAR 13N138W 1011 MB. WITHIN 19N135W 
TO 20N140W TO 12N140W TO 15N134W TO 12N128W TO 14N126W TO 19N135W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO 14N94W TO 
16N94W...INCLUDING THE GULF OF TEHUANTEPEC..N TO NE WINDS 20 TO 
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. 

.WITHIN 11N86W TO 11N88W TO 10N90W TO 10N89W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. 
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE.

.WITHIN 02.5S117W TO 02.5S120W TO 03.4S120W TO 03.4S116W TO
02.5S117W WINDS 20 KT OR LESS. SEAS 2.5 M IN S SWELL.
.09 HOUR FORECAST CONDITIONS IMPROVE. 

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 2000 UTC SUN JUL 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N77W TO 09N110W TO 13N131W TO
12N137W. SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 08N 
BETWEEN 101W AND 106W AND FROM 08N TO 14N BETWEEN 125W AND 132W. 
SCATTERED MODERATE FROM 01N TO 08N BETWEEN 82W AND 95W AND FROM 
04N TO 12N BETWEEN 106W AND 120W.

 
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.

$$