917
FZPN01 KWBC 280952
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 28.
24 HOUR FORECAST VALID 0600 UTC AUG 29.
48 HOUR FORECAST VALID 0600 UTC AUG 30.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 54N158W 994 MB MOVING NE 15 KT AND
SECOND CENTER 51N159W 997 MB MOVING NE 20 KT. WITHIN 360 NM NE
AND E QUADRANTS OF FIRST CENTER...AND WITHIN 420 NM E AND SE
QUADRANTS OF SECOND CENTER WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE WITHIN 480 NM NE AND E QUADRANTS OF FIRST CENTER...AND
WITHIN 360 NM E AND SE OF A FRONT EXTENDING THE SECOND CENTER TO
42N160W TO 38N165W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST COMBINED LOW 59N154W 1006 MB. N OF 53N BETWEEN
145W AND 161W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 60N147W 1018 MB. WITHIN 120 NM S AND 180 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M.

...GALE WARNING...
.LOW W OF AREA 48N154E 982 MB MOVING NE 20 KT. W OF A LINE FROM
53N166E TO 49N169E TO 44N167E TO 41N160E WINDS 30 TO 45 KT. SEAS
2.5 TO 5.5 M.
.24 HOUR FORECAST LOW 51N165E 983 MB. WITHIN 240 NM NE AND E OF A
FRONT TO EXTEND FROM 54N169E TO 53N173E TO 48N174E TO 44N173E
WINDS 35 TO 45 KT. SEAS 2.5 TO 5 M. ELSEWHERE W OF A LINE FROM
56N174E TO 51N176W TO 39N178E WINDS 25 TO 40 KT. SEAS 3 TO 6.5
M...HIGHEST NEAR 46N163E.
.48 HOUR FORECAST LOW 54N176E 982 MB. FROM 42N TO 62N BETWEEN
165W AND 162E...AND WITHIN 240 NM E AND SE OF A FRONT TO EXTEND
FROM 42N178W TO 39N177E WINDS 25 TO 40 KT. SEAS 3 TO 6 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 46N152W 1011 MB. WITHIN 240 W AND NW OF
A FRONT TO EXTEND FROM 48N151W TO THE LOW TO 36N157W TO 32N168W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.42 HOUR FORECAST LOW 43N153W 1005 MB. WITHIN 360 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 42N154W 1004 MB. WITHIN 360 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 38N TO 48N BETWEEN
145W AND 161W WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.SYNOPSIS AND FORECAST.

.LOW 65N162W 998 MB MOVING N 05 KT. N OF 61N BETWEEN 165W AND
170W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 64N162W 1002 MB. N OF 62N BETWEEN 164W AND
170W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 59N157W TO 52N146W TO 47N160W TO 59N157W.
.24 HOUR FORECAST DENSE FOG WITHIN 150 NM OF 45N174E.
.48 HOUR FORECAST DENSE FOG WITHIN 90 NM OF 50N174W.

.FORECASTER HUFFMAN. 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 0600 UTC THU AUG 28.
24 HOUR FORECAST VALID 0600 UTC FRI AUG 29.
48 HOUR FORECAST VALID 0600 UTC SAT AUG 30.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE JULIETTE NEAR 25.4N 120.8W 1008 MB AT 0900

UTC AUG 28 MOVING N OR 350 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS
30
KT GUSTS 40 KT. SEAS 4 M OR GREATER WITHIN 45 NM N SEMICIRCLE AND
0
NM S SEMICIRCLE WITH SEAS TO 4.0 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 4.0 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 3.0 M IN MIXED SWELL.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW JULIETTE NEAR 26.2N
121.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 27N120W
TO
28N120W TO 28N122W TO 27N122W TO 26N122W TO 26N120W TO 27N120W
WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5M.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW JULIETTE NEAR 26.9N
121.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 28N120W
TO
29N121W TO 29N122W TO 27N123W TO 27N122W TO 28N120W WINDS 20 TO
25
KT. SEAS 2.5 TO 3.0 M.
.36 HOUR FORECAST...DISSIPATED. OVER FORECAST WATERS WINDS 20 KT
OR
LESS. SEAS LESS THAN 2.5 M.

.TROPICAL WAVE NEAR 111W. WITHIN 15N106W TO 16N109W TO 15N111W TO

13N110W TO 13N108W TO 13N106W TO 15N106W WINDS 20 KT OR LESS.
SEAS
2.5 TO 3.0 M IN SE TO S SWELL.
.24 HOUR FORECAST TROPICAL WAVE NEAR 116.5W. WITHIN 16N113W TO
17N113W TO 17N116W TO 16N117W TO 14N117W TO 14N115W TO 16N113W
WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE SWELL.
.48 HOUR FORECAST TROPICAL WAVE NEAR 121W...POSSIBLE TROPICAL
CYCLONE. WITHIN 17N118W TO 17N119W TO 17N121W TO 15N122W TO
15N119W
TO 16N118W TO 17N118W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 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 3.0 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. 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 3.0 M IN SE

SWELL. WITHIN 07N102W TO 10N107W TO 08N111W TO 06N111W TO 05N99W
TO
06N98W TO 07N102W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE
TO S SWELL.
.24 HOUR FORECAST WITHIN 06N114W TO 05N122W TO 00N132W TO 01S120W
TO
03.4S120W TO 03.4S96W TO 06N114W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0 M IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN 03S92W TO 02S120W TO 03.4S120W TO
03.4S89W
TO 03S92W WINDS 20 KT OR LESS. SEAS 2.5 M IN MIXED SE AND SW
SWELL.
WITHIN 06N98W TO 07N109W TO 06N119W TO 01N117W TO 02N98W TO
06N98W
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 0600 UTC THU AUG 28...

.NUMEROUS MODERATE TO STRONG IN GULF OF CALIFORNIA FROM 23N TO
27.5N. SIMILAR CONVECTION WITHIN 300 NM OFFSHORE GUATEMALA...AND
WITHIN 150 NM OFFSHORE COLOMBIA.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES OVER NORTHERN COLOMBIA NEAR
10.5N74.5W
TO ACROSS PANAMA TO 09N93W TO 13.5N120W TO 09N131W TO BEYOND
10.5N140W. SCATTERED MODERATE FROM 05N TO 10N BETWEEN 81W AND
95.5W...AND WITHIN 150 NM EITHER SIDE OF MONSOON TROUGH BETWEEN
96W
AND 118W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

$$