North Pacific High Seas Forecast

FZPN01 KWBC 300946
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN AUG 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC AUG 30. 
24 HOUR FORECAST VALID 0600 UTC AUG 31.
48 HOUR FORECAST VALID 0600 UTC SEP 01.

.WARNINGS.

...GALE WARNING... 
.LOW 59N141W 1002 MB MOVING SE 10 KT. FROM 57N TO 60N BETWEEN
150W AND 153W WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE FROM
48N TO 60N BETWEEN 134W AND 158W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 57N138W 1006 MB
AND A SECOND NEW CENTER 60N148W 1004 MB. FROM 58N TO 60N BETWEEN
149W AND 153W WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE FROM
52N TO 60N BETWEEN 145W AND 159W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMBINED LOW 58N144W 992 MB. FROM 55N TO 59N
BETWEEN 144W AND 155W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE
FROM 46N TO 60N BETWEEN 140W AND 161W WINDS 20 TO 30 KT. SEAS 2.5
TO 4 M.

...GALE WARNING... 
.IN THE BERING SEA N OF 60N W OF ALASKA WINDS TO 25 KT. SEAS TO
2.5 M. 
.18 HOUR FORECAST IN THE BERING SEA N OF 63N W OF ALASKA WINDS 25
TO 35 KT. SEAS TO 3.5 M. 
.24 HOUR FORECAST IN THE BERING SEA N AND NE OF A LINE FROM
61N165W TO 65N171W WINDS 20 TO 30 KT. SEAS TO 3 M. 
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.FROM 32N TO 42N BETWEEN 118W AND 126W WINDS TO 25 KT. SEAS TO
2.5 M. 
.24 HOUR FORECAST FROM 32N TO 43N BETWEEN 118W AND 127W WINDS TO
25 KT. SEAS TO 2.5 M. 
.48 HOUR FORECAST CONDITIONS DIMINISHED.
 
.FROM 54N TO 58N W OF 175W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 50N TO 61N W OF 169W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.48 HOUR FORECAST FROM 47N TO 60N W OF 162W WINDS 20 TO 30 KT.
SEAS 2.5 TO 4 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 54N W OF
154W. 
.24 HOUR FORECAST DENSE FOG FROM 48N TO 59N W OF 160W. 
.48 HOUR FORECAST DENSE FOG FROM 45N TO 58N W OF 156W.

.FORECASTER MILLS. 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 SUN AUG 30.
24 HOUR FORECAST VALID 0600 UTC MON AUG 31.
48 HOUR FORECAST VALID 0600 UTC TUE SEP  1.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE KARINA NEAR 17.3N 121.1W 980 MB AT 0900 UTC AUG 30
MOVING WNW OR 295 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM NE
QUADRANT...180 NM SE QUADRANT...90 NM SW QUADRANT...AND 160 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM NE QUADRANT...270
NM SE QUADRANT...180 NM SW QUADRANT...AND 210 NM NW QUADRANT 
WITH SEAS TO 9.5 M. ELSEWHERE WITHIN 19N114W TO 22N120W TO 
18N124W TO 15N123W TO 15N118W TO 16N115W TO 19N114W WINDS 20 TO 
33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 18N109W TO 
22N112W TO 24N120W TO 14N127W TO 08N119W TO 10N112W TO 18N109W 
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE KARINA NEAR 17.8N 124.3W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM E SEMICIRCLE...80 NM SW QUADRANT AND 120 NM NW 
QUADRANT. SEAS 4 M OR GREATER 270 NE AND 180 SW SEMICIRCLES WITH
SEAS TO 11 M. ELSEWHERE WITHIN 21N119W TO 24N124W TO 22N127W TO
18N128W TO 14N125W TO 15N121W TO 21N119W WINDS 20 TO 33 KT. SEAS
3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 23N116W TO 30N120W TO 
24N131W TO 19N131W TO 12N125W TO 17N117W TO 23N116W WINDS 20 KT 
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE KARINA NEAR 18.3N 127.5W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NW AND SE QUADRANTS...130 NM NE QUADRANT AND 80 NM 
SW QUADRANT. SEAS 4 M OR GREATER 270 NM N AND 180 NM S 
SEMICIRCLES
WITH SEAS TO 12 M. ELSEWHERE WITHIN 22N124W TO 24N129W TO 
21N131W TO 17N131W TO 15N128W TO 19N122W TO 22N124W WINDS 20 TO
33 KT. SEAS 2.5 TO 3.0 M IN MIXED SWELL.

...HURRICANE WARNING...
.TROPICAL STORM LOWELL NEAR 13.2N 139.1W 1000 MB AT 0900 UTC AUG
30 MOVING W OR 270 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E
SEMICIRCLE...70 NM SW QUADRANT AND 60 NM NW QUADRANT. SEAS TO 4 
M OR GREATER WITHIN 30 NM OF CENTER EXCEPT 60 NM NW QUADRANT. 
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 13.0N 143.1W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. OVER FORECAST WATERS E
OF 140W CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 
2.5 M.
.48 HOUR FORECAST HURRICANE LOWELL NEAR 13.3N 147.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. OVER FORECAST WATERS E OF 140W
WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND
INTENSITY.

.SYNOPSIS AND FORECAST.

.WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 14N95W TO 14N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO
25 KT. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE.WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.

.WITHIN 11N86W TO 12N87W TO 11N89W TO 10N90W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 28N135W TO 30N137W TO 29N140W TO 23N140W TO 25N137W TO
28N135W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.24 HOUR FORECAST WITHIN 14N104W TO 13N110W TO 11N111W TO
09N108W TO 08N105W TO 11N103W TO 14N104W S WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 16N105W TO 18N107W TO 16N111W TO
12N111W TO 09N109W TO 11N104W TO 16N105W S WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.

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

CONVECTION VALID AT 0900 UTC SUN AUG 30...

.HURRICANE KARINA...NUMEROUS MODERATE TO SCATTERED STRONG WITHIN
180 NM OF CENTER.

.TROPICAL STORM LOWELL...NUMEROUS MODERATE TO SCATTERED STRONG
WITHIN 150 NM W SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 07N78W TO 09N85W TO 08N90W TO 12N108W. 
SCATTERED
MODERATE FROM 05N TO 07N BETWEEN 80W AND 87W. SCATTERED MODERATE
TO ISOLATED STRONG FROM 12N TO 20N BETWEEN 100W AND 110W. 

.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

$$