508
FZPN40 PHFO 231011
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI OCT 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 23 2026.
24 HOUR FORECAST VALID 0600 UTC OCT 24 2026.
48 HOUR FORECAST VALID 0600 UTC OCT 25 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 06N169W 1010 MB NEARLY STATIONARY.
.24 HOUR FORECAST LOW ABSORBED BY MONSOON TROUGH.
LOW 14N178W 1009 MB MOVING N SLOWLY. N OF LOW
WINDS 20 TO 25
KT FROM 16N TO 23N W OF 172W...AND SEAS 2.5 TO 3 M FROM 13N TO 24N
W OF 172W.
24 HOUR FORECAST LOW 12N180W 1008 MB. N OF LOW
WINDS 20 TO 25
KT FROM 13N TO 23N W OF 170W...AND SEAS 2.5 TO 3 M FROM 14N TO
24N W OF 171W.
.48 HOUR FORECAST LOW 15N180W 1006 MB. WINDS 20 TO 25 KT FROM 15N
TO 25N W OF 165W...AND SEAS 2.5 TO 3 M FROM 15N TO 23N W OF 173W.
.TROUGH 23N156W TO 27N157W TO 30N156W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 15N154W TO 19N153W TO 23N152W.
.48 HOUR FORECAST TROUGH 16N151W TO 20N150W TO 23N149W.
.TROUGH 11N154W TO 14N154W TO 16N152W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 10N157W TO 14N155W TO 17N153W.
.48 HOUR FORECAST TROUGH 10N163W TO 13N160W.
.WEAKENING STATIONARY FRONT 30N160W TO 28N170W TO 30N176W.
.24 HOUR FORECAST STATIONARY FRONT DISSIPATED. NEW COLD FRONT
30N149W TO 25N154W TO 22N170W. SE TO S WINDS 20 TO 25 KT E OF COLD
FRONT N OF 29N BETWEEN 143W AND 149W. SEAS 2.5 TO 3 M N OF A LINE
FROM 30N151W TO 27N156W TO 26N154W.
.48 HOUR FORECAST COLD FRONT 30N145W TO 24N150W TO 18N160W. S TO
SW WINDS 20 TO 25 KT E OF FRONT...N OF 27N BETWEEN 141W AND 145W.
SEAS 2.5 TO 3 M N OF A LINE FROM 29N140W TO 23N157W.
.SEAS 2.5 TO 3 M FROM 15N TO 23N E OF 148W.
.24 HOUR FORECAST SEAS SUBSIDE BELOW 2.5 M.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LESS OVER REMAINDER OF
FORECAST AREA.
.ITCZ 02N140W TO 07N147W TO 08N150W. ISOLATED MODERATE TSTMS
WITHIN 270 NM ALONG EITHER SIDE OF ITCZ.
.MONSOON TROUGH 08N160W TO FIRST LOW MENTIONED ABOVE TO SECOND LOW
DESCRIBED ABOVE TO 14N180W. SCATTERED MODERATE TSTMS UP TO 215 NM
ALONG EITHER SIDE OF THE TROUGH BETWEEN 160W AND 174W.
.FORECASTER CHAN. HONOLULU HI.
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