HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC SAT AUG 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 08.
24 HOUR FORECAST VALID 0000 UTC AUG 09.
48 HOUR FORECAST VALID 0000 UTC AUG 10.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FROM 37N TO 43N BETWEEN 124W AND 126W AREA OF N TO NW WINDS 20
TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST FROM 36N TO 44N E OF 129W AREA OF N TO NW WINDS
20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 33N TO 44N E OF 130W AREA OF N TO NW WINDS
20 TO 30 KT. SEAS TO 3.5 M.
.LOW 52N175W 1015 MB MOVING N 15 KT. WITHIN 240 NM NE AND 300 NM
E QUADRANT WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW ABSORBED BY LOW 62N175W 1011 MB. FROM 56N
TO 63N BETWEEN 156W AND 178W WINDS TO 25 KT. SEAS LESS THAN 2.5
M.
.48 HOUR FORECAST LOW 57N172W 1016 MB. CONDITIONS DIMINISHED.
.LOW 47N168W 1015 MB MOVING NE 10 KT. FROM 37N TO 45N BETWEEN
144W AND 159W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 48N149W 1016 MB. CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 46N W OF
174W...AND FROM 46N TO 48N BETWEEN 147W AND 154W.
.24 HOUR FORECAST DENSE FOG FROM 51N TO 56N W OF 178E AND FROM
48N TO 50N BETWEEN 143W AND 150W.
.48 HOUR FORECAST DENSE FOG SW OF A LINE FROM 54N172E TO 51N176W
AND FROM 49N TO 52N BETWEEN 135W AND 143W.
.FORECASTER JOSEPH. 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 0000 UTC SAT AUG 8.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 9.
48 HOUR FORECAST VALID 0000 UTC MON AUG 10.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 12N88W TO 11N88W TO 10N87W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N89W TO 10N89W TO
10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N89W TO 10N89W
TO 10N88W TO 10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...
E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.WITHIN 04N114W TO 01N118W TO 00N131W TO 00N120W TO 03.4S118W TO
00N113W TO 04N114W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S
SWELL.
.24 HOUR FORECAST WITHIN 01N124W TO 02N127W TO 01N128W TO
01N131W TO 00N134W TO 00N122W TO 01N124W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN SE TO S SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.03 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N 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.
.30 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.39 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 0350 UTC SAT AUG 8...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N83W TO 09N96W. THE ITCZ BEGINS
NEAR 09N96W TO 10N109W...THEN RESUMES NEAR 09N115W TO
09N129W...THEN RESUMES NEAR 09N134W TO 09N140W. SCATTERED TO
ISOLATED MODERATE FROM 03N TO 15N BETWEEN 92W AND 103W. NUMEROUS
MODERATE TO STRONG FROM 04N TO 15N BETWEEN 104W AND 120W.
SCATTERED MODERATE TO STRONG FROM 02N TO 16N BETWEEN 120W AND
138W.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC AUG 08 2026.
24 HOUR FORECAST VALID 0000 UTC AUG 09 2026.
48 HOUR FORECAST VALID 0000 UTC AUG 10 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST
.TROUGH 30N154W 28N156W MOVING WNW SLOWLY.
.24 HOUR FORECAST TROUGH 30N158W 25N165W.
.48 HOUR FORECAST TROUGH 30N164W 27N167W.
.TROUGH 30N166W 28N166W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.
.LOW NEAR 13N143W 1009 MB MOVING WNW 10 KT. TROUGH FROM 16N144W
TO LOW TO 09N146W MOVING WNW 10 KT. SEAS 2.5 TO 3 M FROM 20N AND
14N BETWEEN 148W AND 140W. ISOLATED MODERATE TSTMS FROM 17N TO 10N
E OF 146W.
.24 HOUR FORECAST LOW NEAR 12N150W 1009 MB. TROUGH FROM 17N149W
TO LOW TO 08N153W. SEAS 2.5 M TO 3 M FROM 20N TO 14N BETWEEN 153W
AND 142W.
.48 HOUR FORECAST LOW NEAR 13N152W 1009 MB. TROUGH FROM SEAS 2.5
TO 3 M FROM 20N TO 14N BETWEEN 160W AND 146W.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.
.ITCZ 06N149W 06N160W 06N166W. SCATTERED MODERATE TSTMS S OF 10N
BETWEEN 166W AND 149W.
.ISOLATED MODERATE TSTMS FROM 13N TO 05N W OF 172W.
$$
.FORECASTER TROTTER. HONOLULU HI.=