HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC TUE AUG 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 04.
24 HOUR FORECAST VALID 1800 UTC AUG 05.
48 HOUR FORECAST VALID 1800 UTC AUG 06.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 62N169W 990 MB DRIFTING NE. WITHIN 360 NM SE AND S
QUADRANTS AND FROM 55N TO 58N W OF 170W WINDS 20 TO 30 KT. SEAS
2.5 TO 4.5 M. ELSEWHERE WITHIN 240 NM NE QUADRANT...WITHIN 600
NM S AND SW QUADRANTS AND FROM 54N TO 59N BETWEEN 145W AND 152W
WINDS TO 25 KT. SEAS 2.5 TO 3.5 M...EXCEPT N OF 62N AND E OF
152W SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 64N168W 1001 MB. WITHIN 180 NM SE QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 2.5 M. ELSEWHERE FROM 54N TO 60N
W OF 169W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 65N170W 1005 MB. CONDITIONS DIMINISHED.
.FROM 34N TO 45N BETWEEN 124W AND 130W AREA OF NW TO N WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M...HIGHEST NEAR 38N128W. ELSEWHERE
FROM 45N TO 54N BETWEEN 127W AND 132W WINDS TO 25 KT. SEAS TO
2.5 M.
.24 HOUR FORECAST FROM 40N TO 53N BETWEEN 124W AND 130W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 47N TO 51N BETWEEN 125W AND 128W AREA OF
NW WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.COMPLEX LOW WITH MAIN CENTER 47N149W 1016 MB MOVING NW 05 KT.
WITHIN 180 NM NE AND E OF A FRONT FROM 48N150W TO 45N146W TO
41N147W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 47N150W 1011
MB. WITHIN 240 NM NE AND E OF A LINE FROM 50N149W TO 45N145W TO
40N144W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 49N146W 1011
MB. CONDITIONS DIMINISHED.
.W OF A LINE FROM 37N159W TO 30N172W AREA OF NE WINDS TO 25 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 30N TO 36N W OF 168W AREA OF NE TO E
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.12 HOUR FORECAST LOW 50N178W 1014 MB. WITHIN 250 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 49N169W 1011 MB. WITHIN 300 NM S AND 240
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 46N158W 1008 MB. WITHIN 240 NM SW QUADRANT
WINDS TO 25 KT. SE TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM W AND
NW OF A LINE FROM 54N149W TO 47N157W...AND FROM 44N TO 51N W OF
169W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 51N W OF 166W.
.48 HOUR FORECAST DENSE FOG FROM 37N TO 40N E OF 125W.
.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 1800 UTC TUE AUG 4.
24 HOUR FORECAST VALID 1800 UTC WED AUG 5.
48 HOUR FORECAST VALID 1800 UTC THU AUG 6.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 30N122W TO 30N129W TO 27N127W TO 28N125W TO 30N122W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 01S106W TO 01N129W TO 00N136W TO
02S120W TO 03.4S120W TO 03S102W TO 01S106W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 04N105W TO 01N121W TO 01N140W TO
02S120W TO 03.4S120W TO 03.4S98W TO 04N105W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.36 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
14N96W TO 15N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 18N133W TO 19N132W TO 20N134W TO
17N139W TO 16N138W TO 17N136W TO 18N133W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 20N133W TO 20N135W TO 19N140W TO
16N140W TO 16N136W TO 18N134W TO 20N133W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2100 UTC TUE AUG 4...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 07N90W TO 1009 MB LOW PRESSURE
NEAR 13N128W TO 10N135W. ITCZ FROM 08N135W TO 08N140W. NUMEROUS
MODERATE TO ISOLATED STRONG FROM 03N TO 07N EAST OF 85W.
SCATTERED MODERATE FROM 05N TO 13N BETWEEN 95W AND 115W.
$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC AUG 04 2026.
24 HOUR FORECAST VALID 1800 UTC AUG 05 2026.
48 HOUR FORECAST VALID 1800 UTC AUG 06 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST
.TROUGH 30N169W 27N173W 27N177W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 27N173W TO 30N171W.
.48 HOUR FORECAST TROUGH 28N178W TO 30N177W.
.LOW 11N175W 1008 MB MOVING W 5 KT. TROUGH 03N178W TO LOW TO
12N167W. SCATTERED MODERATE TSTMS WITHIN 300 NM OF LOW.
.24 HOUR FORECAST LOW 11N177W. TROUGH 07N180W TO LOW TO
13N173W.
.48 HOUR FORECAST LOW 1009 MB. TROUGH 08N180W TO LOW.
.LOW 27N145W 1014 MB MOVING W 5 KT. TROUGH 07N180W TO LOW TO
13N173W.
.24 HOUR FORECAST LOW 28N144W 1015 MB. TROUGH 22N142W TO LOW TO
30N144W.
.48 HOUR FORECAST LOW WEAKENING TO TROUGH 30N142W 25N141W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 03N154W 05N150W 06N140W. SCATTERED MODERATE TSTMS
WITHIN 180 NM OF ITCZ...AND FROM 00N TO 05N BETWEEN 170W AND
154W.
.SCATTERED MODERATE TSTMS FROM 00N TO 02N E OF 145W...AND FROM
00N TO 02N BETWEEN 154W AND 168W.
$$
.FORECASTER PECHACEK. HONOLULU HI.=