117
FZPN40 PHFO 120229
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC TUE MAY 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 12 2026.
24 HOUR FORECAST VALID 0000 UTC MAY 13 2026.
48 HOUR FORECAST VALID 0000 UTC MAY 14 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 30N142W 25N150W 24N154W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 28N146W 25N155W.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT NEAR 30N140W.
.FRONT 30N147W 25N160W 26N167W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT 30N143W 27N155W.
.48 HOUR FORECAST FRONT 30N140W 28N150W.
.TROUGH 21N180W 20N179W MOVING W 10 KT. ISOLATED MODERATE TSTMS
WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.
.LOW 06N141W 1007 MB. TROUGH 10N140W 05N143W 03N143W. LOW AND
TROUGH MOVING W 05 KT. SCATTERED MODERATE TSTMS FROM 03N TO 08N
E OF 144W.
.24 HOUR FORECAST LOW WEAKENING TO TROUGH 07N142W 03N147W.
.48 HOUR FORECAST TROUGH 07N140W 05N152W.
.WINDS 20 TO 25 KT FROM 15N TO 23N BETWEEN 165W AND 155W.
.24 HOUR FORECAST WINDS 20 TO 30 KT FROM 15N TO 23N BETWEEN 170W
AND 155W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 15N TO 23N BETWEEN
160W AND 155W...AND FROM 23N TO 27N BETWEEN 175W AND 169W.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 08N TO 22N BETWEEN 180W AND 165W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 10N TO 22N BETWEEN 180W
AND 155W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 10N TO 20N BETWEEN 180W
AND 145W...AND FROM 20N TO 25N W OF 175W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 07N180W 07N170W 08N155W 07N145W. ISOLATED TO SCATTERED
MODERATE TSTMS WITHIN 180 NM OF ITCZ W OF 155W.
.FORECASTER PECHACEK. HONOLULU HI.
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