532
FZPN40 PHFO 012259
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT AUG 01 2026
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.
SECURITE
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC AUG 01 2026.
24 HOUR FORECAST VALID 1800 UTC AUG 02 2026.
48 HOUR FORECAST VALID 1800 UTC AUG 03 2026.
.WARNINGS.
..GALE WARNING
.36 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1008 MB NEAR 28.8N
141.9W. WINDS 25 TO 35 KT WITHIN 50 NM SEMICIRCLE N OF LOW. WINDS
20 TO 25 KT REMAINDER OF AREA N OF 25N E OF 145W. SEAS 3.5 TO 5 M
FROM 25N TO 29N E OF 143W. SEAS 2.5 TO 3.5 M REMAINDER OF AREA N
OF 22N E OF 147W.
.48 HOUR FORECAST REMNANT LOW OF GENEVIEVE 1009 MB NEAR 26.7N
143.7W. WINDS OF 20 TO 30 KT N OF 24N E OF 145W. SEAS OF 3.5 TO 4
FT FROM 26N TO 27N BETWEEN 142W AND 144W. SEAS OF 2.5 TO 3.5 FT N
OF 23N AND E OF 147W.
.SYNOPSIS AND FORECAST
.TROUGH 26N176W TO 30N174W MOVING WNW 10 KT. WINDS 20 TO 25 KT
AND SEAS 2.5 TO 3 M N OF 28N BETWEEN W OF 171W. SCATTERED MODERATE
TSTMS N OF 27N BETWEEN 171W AND 175W.
.24 HOUR FORECAST TROUGH MOVED W OF AREA. WINDS EASED BELOW 20 KT
AND SEAS LESS THAN 2.5 M.
.LOW NEAR 08N162W 1009 MB MOVING W SLOWLY. TROUGH 03N164W TO TO
LOW TO 12N159W. SCATTERED MODERATE TSTMS FROM 06N TO 11N E BETWEEN
155W AND 164W.
.24 HOUR FORECAST LOW 08N169W 1010 MB. TROUGH 03N170W TO LOW TO
11N164W.
.48 HOUR FORECAST LOW OPENED UP INTO TROUGH 03N178W TO 09N173W TO
14N169W.
.TROUGH 07N148W TO 11N143W TO 16N140E MOVING W SLOWLY. WINDS 20
TO 25 KT AND SEAS OF 2.5 TO 3 M FROM 13N TO 16N E OF 143W.
SCATTERED MODERATE TSTMS FROM 12N TO 16N E OF 146W.
.24 HOUR FORECAST TROUGH 06N150W TO 10N147W TO 14N144W. WINDS
EASED BELOW 20 KT. SEAS 2.5 TO 3 M FROM 14N TO 16N BETWEEN 143W
AND 145W.
.48 HOUR FORECAST TROUGH 08N152W TO 12N150W TO 16N149E. WINDS
BELOW 20 KT AND SEAS LESS THAN 2.5 M.
.WINDS 20 TO 25 KT UP TO 305 NM OF A LINE FROM 17N166W TO 23N152W
26N140W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 20N TO 24N BETWEEN 154W
AND 176W...AND FROM 13N TO 18N BETWEEN 155W AND 165W. WINDS 20 TO
30 KT N OF 24N E OF 143W.
.48 HOUR FORECAST WINDS 20 TO 25 KT WITHIN 210 NM OF A LINE FROM
14N164W TO 22N173W TO 28N180W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 13N TO 27N E OF 164W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M WITHIN 350 NM OF A LINE FROM
17N167W TO 23N155W TO 24N145W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 11N TO 26N W OF 162W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH FROM 10N176W TO 09N180W. SCATTERED MODERATE TO
ISOLATED STRONG TSTMS FROM 05N TO 14N W OF 172W.
. SCATTERED MODERATE TSTMS FROM 21N TO 24N W OF 174W.
.FORECASTER CHAN. HONOLULU HI.
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