HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC MON AUG 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 10.
24 HOUR FORECAST VALID 1200 UTC AUG 11.
48 HOUR FORECAST VALID 1200 UTC AUG 12.
.WARNINGS.
...GALE WARNING...
.FROM 34N TO 44N BETWEEN 123W AND 129W AREA OF NW TO N WINDS 20
TO 30 KT. SEAS 2.5 TO 4 M.
.12 HOUR FORECAST FROM 40N TO 43N BETWEEN 124W AND 126W AREA OF
NW TO N WINDS 25 TO 35 KT. SEAS 3 TO 4 M.
.24 HOUR FORECAST FROM 33N TO 44N BETWEEN 123W AND 129W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.36 HOUR FORECAST FROM 41N TO 43N BETWEEN 124W AND 126W AREA OF
N WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST FROM 33N TO 44N BETWEEN 123W AND 130W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.LOW 43N160W 1012 MB MOVING NE 15 KT. WITHIN 240 NM S AND 300 NM
SE QUADRANTS WINDS LESS THAN 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 45N155W 1008 MB. WITHIN 360 NM S AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.
.24 HOUR FORECAST LOW 43N164W 1004 MB. FROM 36N TO 43N BETWEEN
157W AND 167W AND WITHIN 300 NM W AND SW QUADRANTS WINDS 20 TO
30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 46N160W 1003 MB. FROM 37N TO 48N BETWEEN
150W AND 158W AND WITHIN 300 NM S AND SW QUADRANTS WINDS 20 TO
30 KT. SEAS TO 3 M.
.24 HOUR FORECAST NEW LOW 56N174E 1008 MB. WITHIN 240 NM E AND
420 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW 55N178W 1000 MB. WITHIN 360 NM OF CENTER
EXCEPT NW QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 48N TO 50N BETWEEN 126W AND 129W AREA OF
NW WINDS TO 25 KT. SEAS LESS THAN 25 KT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 39N150W TO 47N131W TO 53N140W TO 54N153W
TO 42N153W TO 39N150W...N OF 57N BETWEEN 150W AND 154W...N OF
54N BETWEEN 168W AND 176W...AND W OF A LINE FROM 55N173E TO
50N179W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 48N BETWEEN 133W AND
155W....FROM 51N TO 54N BETWEEN 144W AND 149W...FROM 56N TO 60N
BETWEEN 151W AND 154W...FROM 53N TO 61N BETWEEN 165W AND
173W...N OF A LINE FROM 63N166W TO 64N172W...AND FROM 51N TO 54N
W OF 175E.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 52N BETWEEN 137W AND
158W...AND FROM 50N TO 53N W OF 179E.
.FORECASTER BANCROFT. 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 1200 UTC MON AUG 10.
24 HOUR FORECAST VALID 1200 UTC TUE AUG 11.
48 HOUR FORECAST VALID 1200 UTC WED AUG 12.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 14N128W TO 17N131W TO 18N140W TO 09N140W TO 09N129W TO
14N128W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 17N127W TO 20N132W TO 21N140W TO
07N140W TO 11N128W TO 17N127W SE WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M.
.48 HOUR FORECAST WITHIN 17N131W TO 22N133W TO 23N140W TO
06N140W TO 11N133W TO 17N131W SE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M.
.WITHIN 16N94W TO 16N96W TO 14N96W TO 13N95W TO 13N94W TO 14N93W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N96W TO 13N95W TO
13N94W TO 14N93W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N96W TO 13N95W TO
13N94W TO 14N93W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.WITHIN 11N86W TO 12N87W TO 12N89W TO 11N92W TO 09N90W TO 09N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20
TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 01N126W TO 02N130W TO 01N132W TO
00N136W TO 00N125W TO 01N126W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S SWELL.
.48 HOUR FORECAST WITHIN 01N108W TO 03N121W TO 00N132W TO
01S120W TO 03.4S120W TO 03S104W TO 01N108W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1430 UTC MON AUG 10...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N84W TO 03N82W TO 07N90W. ITCZ FROM 07N90W
TO 09N109W. MONSOON TROUGH FROM 09N109W TO 13N129W TO 10N140W.
SCATTERED MODERATE ISOLATED STRONG FROM 02N TO 18N BETWEEN 103W
AND 113W...AND FROM 06N TO 15N BETWEEN 121W AND 138W.
$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC AUG 10 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 11 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 12 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST
.TROUGH FROM 30N160W TO 25N164W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.
.LOW 10N142W 1008 MB NEARLY STATIONARY. SCATTERED MODERATE TSTMS
WITHIN 150 NM E AND W SEMICIRCLES FROM LOW CENTER.
.24 HOUR FORECAST LOW NEAR 11N142W 1006 MB. WINDS 20 TO 30 KT
WITHIN 180 NM SE QUADRANT AND N SEMICIRCLE FROM LOW CENTER.
.48 HOUR FORECAST LOW NEAR 13N141W 1002 MB. TROPICAL CYCLONE
POSSIBLE. WINDS NEAR 35 KT WITHIN 60 NM OF LOW CENTER. WINDS 20 TO
30 KT ELSEWHERE WITHIN 270 NM FROM LOW CENTER. SEAS 2.5 TO 4 M
WITHIN 450 NM N SEMICIRCLE OF LOW CENTER...270 NM S SEMICIRCLE OF
LOW CENTER.
.OTHERWISE...WINDS 20 KT OR LESS OVER THE REMAINDER OF FORECAST
AREA.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 12N TO 19N W OF 153W.
.48 HOUR FORECAST SEAS SUBSIDING TO 2.5 M OR BELOW.
.OTHERWISE...SEAS 2.5 M OR LOWER OVER THE REMAINDER OF FORECAST
AREA.
.ITCZ FROM 07N154W TO 07N179W. ISOLATED MODERATE TSTMS WITHIN 120
NM OF ITCZ W OF 176W.
.MONSOON TROUGH FROM 11N140W TO LOW MENTIONED ABOVE TO 07N150W.
.ISOLATED MODERATE TSTMS WITHIN 90 NM OF POINTS 16N168W AND
13N158W...AND WITHIN 60 NM OF A LINE FROM 06N146W TO 00N161W.
$$
.FORECASTER BLOOD. HONOLULU HI.=