FZPN01 KWBC 191558

HSFEP1



HIGH SEAS FORECAST

NWS OCEAN PREDICTION CENTER WASHINGTON DC

1630 UTC TUE AUG 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC AUG 19. 

24 HOUR FORECAST VALID 1200 UTC AUG 20.

48 HOUR FORECAST VALID 1200 UTC AUG 21.



.WARNINGS.



...GALE WARNING...

.COMPLEX LOW WITH MEAN CENTER 51N157W 1007 MB MOVING SE 15 KT.

FROM 44N TO 54N BETWEEN 152W AND 168W WINDS TO 25 KT. SEAS LESS

THAN 2.5 M.

.24 HOUR FORECAST LOW 50N148W 1006 MB. WITHIN 120 NM N AND NW OF

A LINE FROM LOW CENTER TO 50N144W TO 44N144W WINDS TO 25 KT. SEAS

LESS THAN 2.5 M.

.36 HOUR FORECAST LOW 51N148W 1003 MB. WITHIN 180 NM N AND NW OF

A LINE FROM LOW CENTER TO 53N146W TO 52N142W WINDS 25 TO 35 KT.

SEAS TO 2.5 M.

.48 HOUR FORECAST LOW 50N149W 1003 MB. WITHIN 240 NM SW AND 300

NM NW QUADRANTS...AND WITHIN 180 NM NE AND E OF A FRONT FROM

54N148W TO 55N144W TO 51N141W TO 47N141W TO 42N147W WINDS 20 TO

30 KT. SEASTO 3 M.



.SYNOPSIS AND FORECAST.



.FROM 32N TO 39N BETWEEN 119W AND 125W WINDS TO 25 KT. SEAS LESS

THAN 2.5 M.

.24 HOUR FORECAST FROM 31N TO 41N BETWEEN 119W AND 125W WINDS TO

25 KT. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST S OF 45N BETWEEN 120W AND 127W WINDS 20 TO 30

KT. SEAS TO 3 M.



.LOW NW OF AREA NEAR 58N165E 1002 MB MOVING NE 25 KT. N OF 50N

BETWEEN 178E AND 169E WINDS 20 TO 30 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST LOW NW OF AREA NEAR 65N176E 1003 MB. N OF 58N W

OF 171W WINDS TO 25 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST LOW WELL N OF AREA. N OF 62N BETWEEN 161W AND

167W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.



.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 50N162E 1003 MB.

FROM 43N TO 52N W OF 169E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 52N

BETWEEN 150W AND 160W...AND N OF 43N BETWEEN 173E AND 167E.

.24 HOUR FORECAST DENSE FOG FROM 46N TO 51N BETWEEN 143W AND

147W...AND FROM 44N TO 53N BETWEEN 178W AND 165E...AND N OF 58N

BETWEEN 176W AND 178E.

.48 HOUR FORECAST DENSE FOG FROM 44N TO 55N E OF 172W.



.FORECASTER HYDE. 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 1200 UTC TUE AUG 19.

24 HOUR FORECAST VALID 1200 UTC WED AUG 20.

48 HOUR FORECAST VALID 1200 UTC THU AUG 21.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.WITHIN 01S99W TO 00N106W TO 02S119W TO 03.4S120W TO 03.4S93W TO

01S99W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE TO S SWELL.

.24 HOUR FORECAST WITHIN 01S103W TO 01S120W TO 03.4S120W TO

03.4S97W TO 01S103W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE

TO S SWELL.

.48 HOUR FORECAST WITHIN 02S106W TO 01S111W TO 01S120W TO

03.4S120W TO 03.4S105W TO 02S106W WINDS 20 KT OR LESS. SEAS 2.5

TO 3.0 M IN SE SWELL.



.WITHIN 07N107W TO 08N109W TO 08N115W TO 04N115W TO 04N110W TO

05N107W TO 07N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S

SWELL.

.24 HOUR FORECAST WITHIN 08N112W TO 07N116W TO 05N117W TO

04N115W TO 06N112W TO 08N112W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0 M IN SE TO S SWELL.

.48 HOUR FORECAST WITHIN 08N112W TO 07N116W TO 05N117W TO

04N115W TO 06N112W TO 08N112W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0 M IN SE TO S SWELL.



.30 HOUR FORECAST WITHIN 17N130W TO 18N130W TO 19N132W TO

17N137W TO 15N137W TO 14N133W TO 17N130W WINDS 20 KT OR LESS.

SEAS 2.5 TO 3.0 M IN NE TO E SWELL.

.48 HOUR FORECAST WITHIN 18N133W TO 19N135W TO 19N139W TO

18N140W TO 15N140W TO 15N134W TO 18N133W WINDS 20 KT OR LESS.

SEAS 2.5 TO 3.0 M IN NE TO E SWELL.



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



CONVECTION VALID AT 1430 UTC TUE AUG 19...



.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 09N85W TO 12N94W TO 09N100W TO 11N120W TO 

10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 07N TO 13N 

BETWEEN 88W AND 120W...AND FROM 06N TO 10N BETWEEN 120W AND 

130W.





.FORECASTER AL. NATIONAL HURRICANE CENTER.



$$