716
FZPN01 KWBC 190342
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED AUG 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 19.
24 HOUR FORECAST VALID 0000 UTC AUG 20.
48 HOUR FORECAST VALID 0000 UTC AUG 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 62N BETWEEN THE W COAST OF ALASKA AND 175W AREA OF N WINDS
TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 56N148W 1016 MB MOVING NE 10 KT. WITHIN 360 NM SE...S AND
960 NM SW QUADRANTS WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 58N144W 1016 MB. WITHIN 720 NM SE AND 840
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.LOW 55N167W 1010 MB MOVING NE 10 KT. WITHIN 300 NM
SE...S...BETWEEN 90 NM AND 540 NM SW AND 180 NM AND 360 NM NW
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 57N161W 1012 MB. BETWEEN 180 NM AND 540 NM
SW SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 56N148W 1016 MB. WITHIN 360 NM NE...SE AND
600 NM SW QUADRANTS AND WITHIN 180 NM SE OF A LINE FROM 52N146W
TO 40N158W WINDS TO 25 KT. SEAS TO 2.5 M.

.FROM 30N TO 50N BETWEEN 118W AND 133W AREA OF NW TO N WINDS TO
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 30N TO 51N BETWEEN 118W AND 130W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 32N TO 53N BETWEEN 120W AND 133W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 49N
BETWEEN 140W AND 146W...WITHIN 240 NM NW OF A LINE FROM 54N143W
TO 51N149W AND WITHIN 120 NM NW OF A LINE FROM 52N150W TO
43N163W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM NW OF A LINE FROM
55N146W TO 44N156W AND WITHIN 60 NM NW OF A LINE FROM 51N144W TO
50N147W.
.48 HOUR FORECAST DENSE FOG IN THE BERING SEA N OF 52N W OF 176W
AND WITHIN 120 NM NW OF A LINE FROM 49N146W TO 56N137W.

.FORECASTER FUTTERMAN. 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 0000 UTC WED AUG 19.
24 HOUR FORECAST VALID 0000 UTC THU AUG 20.
48 HOUR FORECAST VALID 0000 UTC FRI AUG 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL WAVE NEAR 134W. WITHIN 14N131W TO 14N135W TO 13N136W
TO 11N136W TO 12N131W TO 14N131W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN E TO SE SWELL.
.24 HOUR FORECAST TROPICAL WAVE NEAR 139W. WITHIN 14N136W TO
15N137W TO 15N140W TO 12N140W TO 12N137W TO 13N136W TO 14N136W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.48 HOUR FORECAST TROPICAL WAVE W OF AREA NEAR 143W. WITHIN
17N138W TO 19N140W TO 13N140W TO 14N139W TO 15N138W TO 17N138W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.

.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 BUILDING TO 2.5 TO 3.0 M.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 12N87W TO 12N88W TO 10N90W TO 11N86W TO 12N87W...
INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS
BUILDING TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 03N97W TO 04N109W TO 02N111W TO 00N136W TO 03.4S120W TO
03.4S82W TO 03N97W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.24 HOUR FORECAST TROPICAL WAVE NEAR 94W. WITHIN 12N92W TO
12N94W TO 11N95W TO 10N94W TO 11N92W TO 12N92W WINDS 20 KT OR
LESS. SEAS BUILDING TO 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL WAVE NEAR 98.5W. WITHIN 12N98W TO
13N101W TO 12N101W TO 11N101W TO 11N99W TO 11N98W TO 12N98W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED E AND SE TO S SWELL.

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

CONVECTION VALID AT 0150 UTC WED AUG 19...

.TROPICAL WAVE NEAR 88W....SCATTERED MODERATE ISOLATED STRONG
FROM 05.5N TO 11.5N BETWEEN 84W AND 89W.

.TROPICAL WAVE NEAR 106W...SCATTERED TO NUMEROUS MODERATE
ISOLATED STRONG FROM 06N TO 12N BETWEEN 99W AND 106W. SCATTERED
MODERATE FROM 04N TO 06N BETWEEN 106W AND 112W.

.TROPICAL WAVE NEAR 134W...SCATTERED TO NUMEROUS MODERATE TO
STRONG FROM 03N TO 15N BETWEEN 120W AND 140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES FROM 09N75W TO 08N104W TO 05N119W
TO 09N140W. SCATTERED MODERATE ISOLATED STRONG FROM 11N TO 15N
BETWEEN 91W AND 103W.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

$$