438
FZPN01 KWBC 162151
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN AUG 16 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT
TO 53N172E TO 50N180W TO 30N180W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC AUG 16.
24 HOUR FORECAST VALID 1800 UTC AUG 17.
48 HOUR FORECAST VALID 1800 UTC AUG 18.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW 57N163W 993 MB MOVING N 15 KT AND
SECOND LOW 53N156W 1005 MB MOVING NE 15 KT. WITHIN 420 NM S AND
300 NM SE QUADRANTS OF SECOND LOW WINDS 25 TO 35 KT. SEAS 2.5 TO
4.5 M. ELSEWHERE WITHIN 660 NM E AND SE QUADRANTS OF FIRST LOW
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 62N165W 994 MB. WITHIN 420 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 64N164W 1008 MB. N OF 63N BETWEEN 166W AND
170W WINDS 20 TO 30 KT. SEAS TO 2.5 M.

.SYNOPSIS AND FORECAST.

.LOW 39N173W 1009 MB MOVING NE 15 KT. FRONT FROM 45N165W TO LOW
TO 35N175W. WITHIN 300 NM E OF FRONT WINDS 20 TO 30 KT. SEAS 2.5
TO 4.5 M.
.24 HOUR FORECAST LOW 46N164W 1014 MB. WITHIN 240 NM E AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 52N155W 1016 MB. WITHIN 240 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST FROM 38N TO 43N BETWEEN 124W AND 128W WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 35N TO 42N BETWEEN 123W AND 127W WINDS TO
25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 54N BETWEEN
164W AND 176W...FROM 45N TO 57N BETWEEN 144W AND 160W.
.24 HOUR FORECAST DENSE FOG N OF 58N BETWEEN 153W AND 176W...N
AND NE OF A LINE FROM 59N151W TO 59N140W TO 55N137W...AND FROM
44N TO 53N BETWEEN 138W AND 165W.
.48 HOUR FORECAST DENSE FOG FROM 48N TO 55N BETWEEN 139W AND
157W.

.FORECASTER ROWLAND. 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 1800 UTC SUN AUG 16.
24 HOUR FORECAST VALID 1800 UTC MON AUG 17.
48 HOUR FORECAST VALID 1800 UTC TUE AUG 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N95W TO 13N96W TO 13N95W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LITTLE CHANG.E
.48 HOUR FORECAST WITHIN 16N95W TO 13N97W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...NE WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.

.WITHIN 10N86W TO 11N86W TO 11N89W TO 11N91W TO 09N93W TO 08N92W
TO 10N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS 2.5 TO 3.0 M.
.18 HOUR FORECAST CONDITIONS IMPROVE.

.WITHIN 30N115W TO 30N116W TO 29N115W TO 28N115W TO 27N115W TO
30N115W...INCLUDING SEBASTIAN VIZCAINO BAY AND WITHIN 60 NM OF
SHORE...NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.39 HOUR FORECAST CONDITIONS IMPROVE.

.WITHIN 19N137W TO 19N140W TO 17N140W TO 17N138W TO 18N137W TO
19N137W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE.

.WITHIN 01S118W TO 01S119W TO 01S120W TO 02S120W TO 03S117W TO
02S119W TO 01S118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S
SWELL.
.24 HOUR FORECAST WITHIN 01S101W TO 00N107W TO 03S118W TO
03.4S94W TO 01S101W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S
SWELL.
.48 HOUR FORECAST WITHIN 02S93W TO 01S105W TO 00N111W TO 03S118W
TO 03.4S89W TO 02S93W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL.

.24 HOUR FORECAST WITHIN 11N125W TO 12N126W TO 11N127W TO
11N126W TO 11N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE.
5
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 2000 UTC SUN AUG 16...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 09N76W TO 08N97W TO 07N112W. THE
ITCZ EXTENDS FROM 07N112W TO 07N116W AND FROM 06N120W TO 08N135W.
NUMEROUS MODERATE TO ISOLATED STRONG FROM 02N TO 13N E OF 104W.

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.