668
FZPN01 KWBC 200412
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 20.
24 HOUR FORECAST VALID 0000 UTC AUG 21.
48 HOUR FORECAST VALID 0000 UTC AUG 22.

.WARNINGS.

...GALE WARNING...
.LOW 50N152W 1007 MB DRIFTING E 05 KT. FROM 40N TO 53N BETWEEN
142W AND 169W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 51N148W 1004 MB. WITHIN 180 NM N OF A LINE
FROM 52N142W TO 53N145W TO LOW CENTER...AND FROM 46N TO 53N
BETWEEN 136W AND 142W WINDS 20 TO 30 KT. SEAS TO 3 M.
.30 HOUR FORECAST LOW 50N148W 1003 MB. WITHIN 90 NM N AND NW OF
A LINE FROM 52N140W TO 54N145W TO 52N149W TO LOW CENTER WINDS 25
TO 35 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 50N145W 1007 MB. FROM 45N TO 58N BETWEEN
132W AND 157W WINDS 20 TO 30 KT. SEAS TO 3 M.

...GALE WARNING...
.48 HOUR FORECAST LOW 50N161E 994 MB. WITHIN 240 NM SE QUADRANT
WINDS 30 TO 40 KT. SEAS 3.5 TO 5 M. ELSEWHERE N AND NW OF A LINE
FROM 43N160E TO 44N167E TO 51N174E TO 57N175E WINDS 20 TO 30 KT.
SEAS TO 2.5 M. TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW NW OF AREA 60N170E 1002 MB MOVING NE 20 KT. N OF 55N
BETWEEN 176W AND 174E WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 65N179W 1003 MB. N OF 59N W OF ALASKA
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL N OF
AREA.

.WITHIN 90 NM OF THE CALIFORNIA COAST FROM 33N TO 41N WINDS TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST FROM 33N TO 44N BETWEEN 120W AND 126W WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 34N TO 46N BETWEEN 120W AND 128W WINDS 20
TO 30 KT. SEAS TO 3 M.

.48 HOUR FORECAST FROM 35N TO 39N BETWEEN 176W AND 174E WINDS TO
25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 49N
BETWEEN 180W AND 163E...AND FROM 45N TO 50N BETWEEN 145W AND
152W...AND N OF 55N BETWEEN 178W AND 174E.
.24 HOUR FORECAST DENSE FOG FROM 50N TO 53N BETWEEN 142W AND
146W...AND FROM 44N TO 53N BETWEEN 176W AND 166E...AND N OF 47N
W OF 162E...AND FROM 60N TO 63N BETWEEN 168W AND 170W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 58N W OF 169W.

.FORECASTER POCHE. 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 0000 UTC WED AUG 20.
24 HOUR FORECAST VALID 0000 UTC THU AUG 21.
48 HOUR FORECAST VALID 0000 UTC FRI AUG 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 02S94W TO 02S105W TO 01S120W TO 03.4S120W TO 03.4S91W TO
02S94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE TO S SWELL.
.24 HOUR FORECAST WITHIN 00N107W TO 01N111W TO 00N121W TO
03.4S120W TO 03.4S100W TO 00N107W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN SE SWELL.
.48 HOUR FORECAST WITHIN 01S111W TO 00N117W TO 00N121W TO
03.4S120W TO 03.4S105W TO 01S111W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN SE SWELL.

.WITHIN 08N110W TO 09N116W TO 07N126W TO 04N122W TO 03N113W TO
08N110W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE TO S SWELL.
.24 HOUR FORECAST WITHIN 10N105W TO 09N116W TO 09N132W TO
04N135W TO 05N118W TO 05N108W TO 10N105W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN SE TO S SWELL.
.48 HOUR FORECAST WITHIN 11N108W TO 10N109W TO 08N112W TO
06N111W TO 07N106W TO 11N108W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN SE TO S SWELL.

.30 HOUR FORECAST WITHIN 21N134W TO 20N136W TO 17N138W TO
15N136W TO 17N128W TO 21N134W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 20N136W TO 20N140W TO 15N140W TO
15N132W TO 20N136W 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 0300 UTC WED AUG 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 12N122W TO 10N140W. SCATTERED
MODERATE AND ISOLATED STRONG FROM 06N TO 09N BETWEEN 87W AND
90W, FROM 10N TO 14N BETWEEN 97W AND 103W...FROM 09N TO 13N
BETWEEN 108W AND 114W...AND FROM 09N TO 12N BETWEEN 130W AND
140W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.