HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SUN AUG 09 2026
CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 09.
24 HOUR FORECAST VALID 1200 UTC AUG 10.
48 HOUR FORECAST VALID 1200 UTC AUG 11.
.WARNINGS.
...GALE WARNING...
.FROM 37N TO 43N E OF 128W AREA OF NW TO N WINDS 20 TO 30 KT.
SEAS TO 3 M.
.12 HOUR FORECAST FROM 37N TO 43N E OF 127W AREA OF NW TO N WINDS
25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST FROM 36N TO 43N E OF 128W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.48 HOUR FORECAST FROM 38N TO 42N E OF 128W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.SYNOPSIS AND FORECAST.
.LOW 60N172W 1013 MB MOVING SE 25 KT. IN THE BERING SEA N OF 52N
W OF 165W. WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 51N169W 1012 MB AND CONDITIONS DIMINISHED.
.LOW 41N168W 1014 MB MOVING NE 10 KT. WITHIN 480 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 43N162W 1012 MB. WITHIN 240 NM SE AND 480
NM SW QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW 44N165W 1004 MB. WITHIN 420 NM SE...360 NM
S AND 420 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM N AND
NE OF A LINE FROM 47N148W TO 46N138W AND IN THE BERING SEA WITHIN
90 NM W OF A LINE FROM 60N168W TO 55N168W.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM NW AND N OF A LINE FROM
45N143W TO 46N136W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 48N BETWEEN 140W AND
153W.
.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 1200 UTC SUN AUG 09.
24 HOUR FORECAST VALID 1200 UTC MON AUG 10.
48 HOUR FORECAST VALID 1200 UTC TUE AUG 11.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LITTLE CHANGE.
.FROM 10N TO 12N E OF 88W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST FROM 09N TO 11.5N BETWEEN 86W AND
92W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST FROM 09N TO 11.5N BETWEEN 86W AND
90W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS 2.5 M.
.FROM 10N TO 16N W OF 137W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN NE SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.FROM 12N TO 15N BETWEEN 122W AND 128W NE TO E WINDS 20 TO 25 KT.
SEAS 2.5 M. FROM 12N TO 14N BETWEEN 115W AND 120W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN MIXED NE AND SW SWELL.
.24 HOUR FORECAST FROM 08N TO 12N BETWEEN 123W AND 131W S TO SW
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. FROM 12N TO 15N BETWEEN
127W AND 130W NE WINDS 20 TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST LOW PRES NEAR 14N131W 1004 MB. WITHIN 180 NM OF
LOW CENTER...EXCEPT SW QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO
3.5 M IN MIXED SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SUN AUG 9...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 08N83W TO 11N110W TO 10N130W TO
10N140W. NUMEROUS MODERATE TO STRONG CONVECTION IS NOTED FROM 06N
TO 16N BETWEEN 125W AND 134W. SCATTERED MODERATE TO ISOLATED
STRONG
CONVECTION CAN BE FOUND FROM 02N TO 06N BETWEEN 78W AND 85W, FROM
10N TO 15.5N BETWEEN 97W AND 112W, AND FROM 08N TO 13N W OF 134W.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC AUG 09 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 10 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 11 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST
.TROUGH 10N154W 16N153W MOVING W 10 KT. ASSOCIATED SEAS DESCRIBED
BELOW. ISOLATED MODERATE TSTMS FROM 14N TO 10N BETWEEN 154W AND
151W.
.24 HOUR FORECAST TROUGH 15N158W 09N157W.
.48 HOUR FORECAST TROUGH 13N163W 10N159W.
.NEW LOW NEAR 10N141W 1008 MB. TROUGH 13N143W TO LOW TO 08N142W.
TROUGH AND LOW NEARLY STATIONARY. WINDS 20 TO 25 KT FROM 17N TO
12N
E OF 145W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM OF
TROUGH. ASSOCIATED SEAS DESCRIBED BELOW.
.24 HOUR FORECAST LOW NEAR 10N141W. WINDS 20 TO 25 KT FROM 18N TO
12N E OF 148W.
.48 HOUR FORECAST LOW NEAR 12N142W. WINDS 20 TO 25 KT FROM 19N TO
13N E OF 147W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 20N TO 14N BETWEEN 157W AND 143W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 20N TO 13N E OF 160W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 19N TO 13N E OF 156W.
.ITCZ 08N147W 08N161W 07N177W ISOLATED MODERATE TSTMS FROM 13N
TO 05N W OF 170W...AND FROM 09N TO 04N BETWEEN 160W AND 145W.
$$
.FORECASTER KINO. HONOLULU HI.=