303
FZPN40 PHFO 222241
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU OCT 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 22 2026.
24 HOUR FORECAST VALID 1800 UTC OCT 23 2026.
48 HOUR FORECAST VALID 1800 UTC OCT 24 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 11N178W 1009 MB MOVING N 5 KT. WINDS 20 TO 25 KT WITHIN 120 NM
OF N SEMICIRCLE.
.24 HOUR FORECAST LOW 13N178W 1008 MB. WINDS 20 TO 25 KT FROM 15N
TO 22N W OF 173W.
.48 HOUR FORECAST LOW 15N176W 1006 MB. WINDS 20 TO 30 KT FROM 15N
TO 20N BETWEEN 180W AND 170W.
.LOW 08N142W 1010 MB MOVING W 5 KT.
.24 HOUR FORECAST LOW DISSIPATED.
.TROUGH 30N156W 25N157W 22N156W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N158W 25N158W 23N157W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.TROUGH 16N152W 14N155W 11N155W MOVING W 5 KT.
.24 HOUR FORECAST TROUGH 16N155W 11N157W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.48 HOUR FORECAST NEW FRONT 30N145W 26N150W. WINDS 20 TO 25 KT
WITHIN 90 NM OF FRONT.
.SEAS 2.5 TO 3 M FROM 13N TO 22N BETWEEN 180W AND 175W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 12N TO 23N W OF 175W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 15N TO 25N W OF 174W.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LESS OVER REMAINDER OF
FORECAST AREA.
MONSOON TROUGH 12N180W 08N170W 07N165W 10N156W
AND 10N152W
07N146W 08N140W. SCATTERED MODERATE TO LOCALLY STRONG TSTMS
FROM 10N TO 15N BETWEEN 180W AND 175W...AND FROM 07N TO 15N
BETWEEN 170W AND 165W. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN
120 NM N OF TROUGH.
.FORECASTER PECHACEK. HONOLULU HI.
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