436
FZPN40 PHFO 231523
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 23 2026.
24 HOUR FORECAST VALID 1200 UTC OCT 24 2026.
48 HOUR FORECAST VALID 1200 UTC OCT 25 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
NEW COLD FRONT 30N157W TO 28N162W
MOVING SE 15 KT SCATTERED
MODERATE TSTMS SE OF FRONT N OF 29N BETWEEN 152W AND 154W.
.24 HOUR FORECAST COLD FRONT 30N148W TO 24N153W TO 21N165W. SE TO
S WINDS 20 TO 25 KT E OF COLD FRONT...N OF 28N BETWEEN 143W AND
149W. SEAS 2.5 TO 3 M N OF A LINE FROM 30N151W TO 27N157W TO
26N164W.
.48 HOUR FORECAST COLD FRONT 30N143W TO 23N150W TO 18N158W. S TO
SW WINDS 20 TO 25 KT E OF FRONT...N OF 27N BETWEEN 140W AND 143W.
SEAS 2.5 TO 3.5 M N OF A LINE FROM 30N140W TO 23N157W.
.LOW 06N169W 1010 MB NEARLY STATIONARY.
.24 HOUR FORECAST LOW ABSORBED BY MONSOON TROUGH.
.LOW 14N179W 1009 MB MOVING N SLOWLY. SCATTERED MODERATE TSTMS
FROM 12N TO 14N W OF 177W. N OF LOW...E WINDS 20 TO 25 KT FROM 15N
TO 23N W OF 175W...AND SEAS 2.5 TO 3 M FROM 14N TO 24N W OF 173W.
24 HOUR FORECAST LOW 12N180W 1008 MB. N OF LOW
E WINDS 20 TO
25 KT FROM 15N TO 24N W OF 170W...AND SEAS 2.5 TO 3 M FROM 14N TO
22N W OF 171W.
.48 HOUR FORECAST LOW 15N179W 1006 MB. E TO SE WINDS 20 TO 30 KT
FROM 13N TO 24N W OF 168W...AND SEAS 2.5 TO 3 M FROM 14N TO 24N W
OF 167W.
.TROUGH 24N153W TO 26N154W TO 29N155W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH ABSORBED BY COLD FRONT.
.TROUGH 13N155W TO 18N154W TO 22N152W NEARLY STATIONARY. ISOLATED
MODERATE TSTMS SE OF TROUGH FROM 11N TO 15N BETWEEN 143W AND
154W.
.24 HOUR FORECAST TROUGH 12N157W TO 16N154W TO 22N152W.
.48 HOUR FORECAST TROUGH 13N161W TO 16N154W TO 21N150W.
.SEAS 2.5 TO 3 M FROM 12N TO 22N E OF 151W.
.24 HOUR FORECAST SEAS SUBSIDE BELOW 2.5 M.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF A LINE FROM 30N176W TO
28N180W.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.
.ITCZ 03N140W TO 07N150W. ISOLATED MODERATE TSTMS NEAR ITCZ FROM
03N TO 10N E OF 150W.
.MONSOON TROUGH 08N160W TO FIRST LOW MENTIONED ABOVE TO SECOND LOW
DESCRIBED ABOVE TO 14N180W. SCATTERED MODERATE TSTMS NEAR AND S OF
TROUGH FROM 01N TO 07N BETWEEN 158W AND 173W.
.FORECASTER CHAN. HONOLULU HI.
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