HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC MON AUG 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 03.
24 HOUR FORECAST VALID 0600 UTC AUG 04.
48 HOUR FORECAST VALID 0600 UTC AUG 05.
.WARNINGS.
...GALE WARNING...
.FROM 34N TO 45N BETWEEN 122W AND 130W WINDS 25 TO 40 KT. SEAS 3
TO 4.5 M. ELSEWHERE FROM 30N TO 50N BETWEEN 120W AND 133W WINDS
TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 37N TO 47N BETWEEN 124W AND 130W WINDS 25
TO 40 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE FROM 30N TO 53N BETWEEN
124W AND 134W WINDS TO 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST FROM 37N TO 57N BETWEEN 123W AND 133W WINDS 20
TO 30 KT. SEAS TO 3 M.
...GALE WARNING...
.LOW 62N177W 984 MB DRIFTING E. WITHIN 300 NM NE...840 NM SE AND
360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE
WITHIN 1020 NM SE QUADRANT WINDS TO 25 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 62N172W 989 MB. WITHIN 240 NM E SEMICIRCLE
AND SW QUADRANT WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M. ELSEWHERE
WITHIN 780 NM SE AND 660 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO
2.5 M.
.48 HOUR FORECAST LOW 64N165W 1000 MB. WITHIN 360 NM SE AND 720
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MAIN CENTER 45N148W 1016 MB MOVING S 20 KT AND
SECOND CENTER 50N148W 1021 MOVING S 20 KT. WITHIN 180 NM NE AND
660 NM SE QUADRANTS 540 NM E SEMICIRCLE OF MAIN CENTER WINDS TO
25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 45N148W 1016 MB. WITHIN 240 NM NE AND 480
NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 42N147W 1016 MB. WITHIN 480 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 30N TO 33N BETWEEN 136W AND 146W WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST FROM 30N TO 37N W OF 160W WINDS TO 25 KT. SEAS
TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 62N W OF
162W.
.24 HOUR FORECAST DENSE FOG FROM 49N TO 60N BETWEEN 155W AND
160W...AND FROM 42N TO 49N W OF 160W.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 56N BETWEEN 146W AND
156W...AND FROM 42N TO 52N W OF 170W.
.FORECASTER HOLLEY. 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 MON AUG 3.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 4.
48 HOUR FORECAST VALID 0600 UTC WED AUG 5.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 29N137W TO 30N137W TO 30N140W TO 23N140W TO 25N138W TO
29N137W E TO SE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M IN E TO SE
SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 30N121W TO 30N128W TO 29N126W TO 29N123W TO 29N122W TO
30N121W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST WITHIN 30N122W TO 30N130W TO 28N128W TO
28N126W TO 29N124W TO 30N122W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0730 UTC MON AUG 3...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N84W TO 10N110W TO 13N120W TO 06N135W.
ITCZ FROM 06N135W TO 05N140W. SCATTERED MODERATE ISOLATED STRONG
FROM 04N TO 10N BETWEEN 82W AND 126W.
.FORECASTER AL. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0600 UTC AUG 03 2026.
24 HOUR FORECAST VALID 0600 UTC AUG 04 2026.
48 HOUR FORECAST VALID 0600 UTC AUG 05 2026.
.WARNINGS.
...GALE WARNING...
.POST-TROPICAL LOW OF GENEVIEVE 1010 MB NEAR 25N141W. TROUGH
30N142W THROUGH LOW TO 23N141W. LOW AND TROUGH MOVING NW SLOWLY.
WINDS 25 TO 35 KT WITHIN 180 NM N SEMICIRCLE. WINDS 20 TO 25 KT
ELSEWHERE N OF 24N E OF 144W. SEAS 4 TO 4.5 M WITHIN 180 NM OF
LOW. SEAS 2.5 TO 4 M ELSEWHERE N OF 22N E OF 148W.
.24 HOUR FORECAST REMNANT LOW OF GENEVIEVE 1010 MB NEAR 27N144W.
TROUGH 30N145W THROUGH LOW TO 22N140W. WINDS 20 TO 30 KT N OF 25N
E OF 147W. SEAS 2.5 TO 3 M N OF 26N E OF 148W.
.48 HOUR FORECAST REMNANT LOW GENEVIEVE 1013 MB NEAR 28N146W.
TROUGH 30N146W THROUGH LOW TO 22N142W. WINDS EASED TO 20 KT OR
LESS AND ASSOCIATED SEAS LOWERED TO 2.5 M OR LOWER.
.SYNOPSIS AND FORECAST
.TROUGH 14N146W 09N150W 02N155W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 210 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 12N152W 05N158W.
.48 HOUR FORECAST TROUGH 09N161W 04N165W.
.LOW NEAR 08N166W 1009 MB AND TROUGH FROM 13N164W THROUGH LOW TO
04N169W. LOW AND TROUGH MOVING W SLOWLY. ISOLATED MODERATE TSTMS
FROM 14N TO 07N BETWEEN 170W AND 159W.
.24 HOUR FORECAST LOW WEAKENED TO TROUGH FROM 14N169W 04N174W.
.48 HOUR FORECAST TROUGH 13N171W 07N180W.
.48 HOUR FORECAST NEW FRONT 30N166W 29N178W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 26N TO 11N BETWEEN 175W AND 160W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M W OF LINE 27N180W 22N168W
11N165W 11N173W 20N180W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M W OF LINE 26N180W 15N171W
13N177W 17N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 05N140W 04N147W. ISOLATED MODERATE TSTMS FROM 10N TO 02N E
OF 147W.
.SCATTERED MODERATE TSTMS FROM 27N TO 23N W OF 178W. ISOLATED
MODERATE TSTMS FROM 23N TO 20N W OF 177W.
$$
.FORECASTER TROTTER. HONOLULU HI.=