National Weather Service Marine Forecast FZPN40 PHFO

FZPN40 PHFO 281059
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI MAR 28 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 160E

SYNOPSIS VALID 0600 UTC MAR 28 2025. 24 HOUR FORECAST VALID 0600 UTC MAR 29 2025. 48 HOUR FORECAST VALID 0600 UTC MAR 30 2025.

.WARNINGS.

GALE WARNING

.LOW NEAR 30N169E 1013 MB MOVING ESE 15 KT. COLD FRONT FROM LOW TO 26N167E TO 25N161E MOVING E 25 KT. WINDS 20 TO 25 KT AND SEAS 8 TO 10 FT WITHIN 240 NM N AND NW OF FRONT. .24 HOUR FORECAST LOW NEAR 27N179W 1011 MB. FRONTS FROM LOW TO 30N174E AND FROM LOW TO 22N178E TO 19N171E. WINDS 20 TO 30 KT AND SEAS 8 TO 9 FT WITHIN 360 NM OF LOW NE SEMICIRCLE. .48 HOUR FORECAST LOW NEAR 30N177W 1002 MB. FRONT FROM LOW TO 23N172W TO 19N179W. WINDS 20 TO 35 OVER FORECAST WATERS WITHIN 480 NM OF LOW SW QUADRANT AND WITHIN 240 NM OF LOW SE QUADRANT. ALSO WINDS 20 TO 25 KT N OF 23N WITHIN 150 NM E OF FRONT. SEAS 8 TO 14 FT FROM 30N TO 25N BETWEEN 175E AND 170W.

.SYNOPSIS AND FORECAST.

.LOW NEAR 24N172W 1012 MB MOVING ENE 15 KT. WARM FRONT FROM LOW TO 26N169W TO 27N163W TO 30N160W MOVING E 10 KT. COLD FRONT FROM LOW TO 21N177W TO 18N176E TO 16N170E. WINDS 20 TO 30 KT AND SEAS 8 TO 10 FT WITHIN 210 NM OF LOW CENTER. .24 HOUR FORECAST LOW NEAR 26N169W 1014 MB. FRONT FROM LOW TO 27N162W TO 30N157W AND FROM LOW TO 22N172W TO 18N179E. WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT WITHIN 150 NM OF LOW CENTER NE SEMICIRCLE. .48 HOUR FORECAST LOW DISSIPATED. FIRST FRONT FROM 30N140W TO 28N150W TO 27N162W. SECOND FRONT MERGED WITH FRONT DESCRIBED IN WARNING SECTION ABOVE. ASSOCIATED WINDS AND SEAS INCLUDED WITH FRONT DESCRIBED IN WARNING SECTION ABOVE.

.OTHERWISE WINDS NE TO E 20 TO 25 KT WITHIN AN AREA BOUND BY 16N140W 05N140W 07N148W 06N155W 03N165W 12N165W 14N150W 16N140W. .24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT WITHIN AND AREA BOUND BY 14N140W 05N140W 07N148W 06N155W 03N165W 12N160W 14N140W. .48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 12N TO 06N BETWEEN 174W AND 140W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.OTHERWISE SEAS 8 TO 10 FT FROM 30N TO 23N BETWEEN 148W AND 140W. .24 HOUR FORECAST SEAS 8 TO 9 FT FROM 30N TO 25N BETWEEN 144W AND 140W.

48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER
EXCEPT HIGHER WHERE NOTED ABOVE.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 05N140W TO 07N148W TO 06N155W TO 03N165W. SCATTERED MODERATE TSTMS WITHIN 120 N OF ITCZ E OF 148W.

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.FORECASTER BEDAL. HONOLULU HI.