101
FZPN01 KWBC 281554
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC THU AUG 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 28.
24 HOUR FORECAST VALID 1200 UTC AUG 29.
48 HOUR FORECAST VALID 1200 UTC AUG 30.

.WARNINGS.

...GALE WARNING...
.LOW 49N157E 982 MB MOVING NE 20 KT. W OF A LINE FROM 54N169E TO
51N172E TO 39N173E WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 52N168E 983 MB. W OF A LINE FROM 58N177E TO
55N174W TO 47N172W TO 38N177E WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5
M...HIGHEST SW OF CENTER.
.48 HOUR FORECAST LOW 55N176E 983 MB. WITHIN AN AREA BOUNDED BY A
LINE FROM 63N172W TO 59N160W TO 38N174W TO 45N164E TO 52N164E TO
53N172W TO 63N172W WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5  M.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 59N157W 996 MB MOVING NE 10 KT AND
SECOND CENTER 55N158W 993 MB MOVING NE 15 KT. WITHIN 300 NM E OF
A LINE FROM MAIN CENTER TO SECOND CENTER TO 48N156W WINDS 25 TO
35 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE
FROM 61N145W TO 38N154W TO 36N167W TO 51N171W TO 61N165W TO
61N145W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 62N152W 1006 MB
AND SECOND CENTER 58N151W 1008 MB. WITHIN 360 NM OF EACH CENTER
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMBINED LOW 60N147W 1020 MB. WITHIN 180 NM S
SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 42N151W 1011 MB. WITHIN 240 NM W OF A
LINE FROM 49N151W TO LOW CENTER TO 32N159W WINDS 20 TO 30 KT.
SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 41N155W 1005 MB. WITHIN 420 NM NE
QUADRANT...AND WITHIN 360 NM W SEMICIRCLE WINDS 25 TO 35 KT. SEAS
2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW 65N164W 997 MB MOVING N 10 KT. WITHIN 240 NM W SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 67N164W 1003 MB. WITHIN 300 NM OF CENTER
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL NE OF AREA.

.24 HOUR FORECAST LOW 43N137W 1012 MB. WITHIN 120 NM OF CENTER
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW 42N134W 1014 MB. ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 51N E OF
124W...N OF 42N W OF 164E...AND FROM 55N TO 60N BETWEEN 148W AND
137W.
.24 HOUR FORECAST DENSE FOG FROM 37N TO 51N E OF 124W.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 54N BETWEEN 174W AND
168W.

.FORECASTER BYRD. 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 THU AUG 28.
24 HOUR FORECAST VALID 1200 UTC FRI AUG 29.
48 HOUR FORECAST VALID 1200 UTC SAT AUG 30.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES...REMNANTS OF JULIETTE NEAR 26N121W 1009 MB. WITHIN 45
NM
N SEMICIRCLE AND 0 NM S SEMICIRCLE WITH SEAS TO 3.5 M. ELSEWHERE
WITHIN 26N119W TO 27N120W TO 26N122W TO 25N122W TO 24N120W TO
25N119W TO 26N119W WINDS 20 TO 33 KT. SEAS 2.5 TO 3 M. REMAINDER
OF
AREA WITHIN 27N118W TO 27N121W TO 25N123W TO 24N122W TO 24N121W
TO
25N118W TO 27N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.06 HOUR FORECAST REMNANT LOW OF JULIETTE NEAR 26.5N121W 1010 MB.

WITHIN 27N119W TO 28N120W TO 28N122W TO 27N122W TO 26N122W TO
26N120W TO 27N119W WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST WEAKENING REMNANT LOW NEAR 27N121W 1012 MB.
WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.TROPICAL WAVE NEAR 112W. WITHIN 15N106W TO 16N109W TO 15N111W TO

13N110W TO 13N108W TO 13N106W TO 15N106W WINDS 20 KT OR LESS.
SEAS
2.5 TO 3 M IN SE TO S SWELL.
.24 HOUR FORECAST TROPICAL WAVE NEAR 117W WITH LOW
PRES...POSSIBLE
TROPICAL CYCLONE...NEAR 14N117W 1009 MB. WITHIN 16N114W TO
17N113W
TO 17N116W TO 16N117W TO 14N117W TO 14N115W TO 16N114W NE TO E
WINDS
20 TO 25 KT. SEAS TO 2.5 M IN SE SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N120W 1008 MB. WITHIN 16N118W TO 17N121W TO 16N122W TO 15N120W
TO
15N118W TO 16N117W TO 16N118W WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.

.WITHIN 16N94W TO 16N95W TO 14N96W TO 14N95W TO 15N94W TO
16N94W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT.
SEAS
2.5 TO 3 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.WITHIN 01S119W TO 03N130W TO 00N136W TO 03.4S120W TO 01S120W TO
03.4S104W TO 01S119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN SE
SWELL. WITHIN 07N109W TO 10N107W TO 08N111W TO 06N111W TO 05N99W
TO
06N98W TO 07N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN SE TO S

SWELL.
.24 HOUR FORECAST WITHIN 06N110W TO 05N123W TO 00N128W TO 01S120W
TO
03.4S120W TO 03.4S95W TO 06N119W WINDS 20 KT OR LESS. SEAS 2.5 IN

MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN 03S96W TO 05S118W TO 03.4S120W TO
03.4S96W
TO 03S96W WINDS 20 KT OR LESS. SEAS 2.5 M IN MIXED SE AND SW
SWELL.
WITHIN 05N94W TO 08N100W TO 06N113W TO 04N119W TO 02N112W TO
03N104W
TO 05N94W WINDS 20 KT OR LESS. SEAS 2.5 M IN MIXED SE AND SW
SWELL.

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

CONVECTION VALID AT 1515 UTC THU AUG 28...

.TROPICAL WAVE ALONG 112W FROM 06N TO 19N...NUMEROUS MODERATE
ISOLATED STRONG FROM 09N TO 16N BETWEEN 107W AND 111W.

.NUMEROUS ISOLATED STRONG IN GULF OF CALIFORNIA FROM 22N TO 25N
BETWEEN 106W AND 110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM LOW PRES OVER ALONG THE COAST OF

COLOMBIA NEAR 11N76W TO ACROSS NORTHERN PANAMA AND SOUTHERN COSTA

RICA TO 10N91W TO 11N102W TO 14N120W TO LOW PRES NEAR 13N127W TO
11N140W. NUMEROUS MODERATE TO STRONG FROM 04N TO 09N BETWEEN 78W
AND
83W...FROM 09N TO 14N BETWEEN 95W AND 102W AND WITHIN 120 NM S OF

THE TROUGH BETWEEN 85W AND 86W. SCATTERED MODERATE ISOLATED
STRONG
WITHIN 120 NM S OF THE TROUGH BETWEEN 84W AND 86W. SCATTERED
MODERATE WITHIN 180 NM S OF THE TROUGH BETWEEN 100W AND 104W.


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$