496
FZPN40 PHFO 311121
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI JAN 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 31 2025.
24 HOUR FORECAST VALID 0600 UTC FEB 01 2025.
48 HOUR FORECAST VALID 0600 UTC FEB 02 2025.

.WARNINGS.

...STORM WARNING...
.LOW NEAR 29N161W 989 MB MOVING ENE 20 KT. ASSOCIATED COLD FRONT
FROM 30N156W TO 26N157W TO 22N161W TO 19N168W TO 16N179W. FRONT
MOVING E 25 KT N OF 19N AND SE 15 KT S OF 19N. ASSOCIATED TROUGH
FROM 22N169W TO 22N175W TO 23N179E. WINDS 30 TO 45 KT WITHIN AN
AREA BOUND BY 30N165W 30N145W 22N155W 26N165W 30N165W...EXCEPT
WINDS 45 TO 50 KT OVER FORECAST WATERS WITHIN 180 NM OF LOW SW AND
NW QUADRANTS. ELSEWHERE WINDS 20 TO 30 KT FROM 30N TO 19N BETWEEN
170W AND 142W. NUMEROUS MODERATE TSTMS N OF 22N WITHIN 360 NM E
OF FRONT. ISOLATED MODERATE TSTMS ELSEWHERE N OF 26N WITHIN 600 NM
E OF FRONT.
.12 HOUR FORECAST LOW 990 MB NEAR 30N157W. ASSOCIATED FRONT FROM
30N151W TO 24N156W TO 19N166W THENCE A TROUGH TO 20N171W TO
21N179E. WINDS 30 TO 45 KT WITHIN 180 NM OF LOW S SEMICIRCLE.
WINDS 20 TO 30 KT N OF 24N WITHIN 360 NM E OF FRONT. ALSO WINDS 20
TO 30 KT ELSEWHERE N OF 19N WITHIN 900 NM W OF FRONT.
.24 HOUR FORECAST LOW 996 MB JUST N OF FORECAST AREA NEAR
32N153W. FRONT FROM 30N147W TO 23N154W TO 18N162W THENCE A TROUGH
TO 19N169W TO 20N176W. REMAINDER FRONT DISSIPATED. WINDS 30 TO 35
KT OVER FORECAST WATERS WITHIN 240 NM OF LOW SE QUADRANT. WINDS 20
TO 30 KT N OF 23N WITHIN 480 NM E OF FRONT. WINDS 20 TO 30 KT
ELSEWHERE N OF 23N WITHIN 900 NM W OF FRONT.
.48 HOUR FORECAST FRONT FROM 30N144W TO 23N150W TO 18N157W.
TROUGH DISSIPATED. WINDS20 TO 30 KT OVER FORECAST WATERS N OF 25N
BETWEEN 160W AND 140W.


.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N173E TO 26N166E TO 22N160E MOVING E 15 KT.
WINDS INCREASING TO 20 TO 30 KT OVER FORECAST WATERS W OF FRONT.
.24 HOUR FORECAST FRONT FROM 30N179W TO 26N175W TO 22N169W TO
20N160E. WINDS 20 TO 25 KT N OF 26N WITHIN 240 NM E OF FRONT.
WINDS 20 TO 30 KT OVER FORECAST WATERS N OF 22N W OF FRONT.
.48 HOUR FORECAST FRONT FROM 30N171W TO 25N177W TO 20N177E.
ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 03N160E TO 08N165E MOVE WNW 15 KT. ISOLATED MODERATE
TSTMS FROM 09N TO 30N BETWEEN 160E AND 167E.
.24 HOUR FORECAST TROUGH EXITED FORECAST AREA.

.TROUGH FROM 04N172W TO 06N179E TO 10N175W MOVING WNW 15 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.OTHERWISE WINDS NE TO E 20 TO 30 KT FROM 19N TO 05N BETWEEN 150W
AND 140W.
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT  FROM 15N TO 07N BETWEEN
150W AND 140W...AND ALSO FROM 15N TO 05N BETWEEN 160E AND 168E.
.48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 13N TO 09N
BETWEEN 150W AND 140W...AND ALSO FROM 15N TO 03N BETWEEN 160E AND
175W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.ITCZ FROM 06N140W TO 07N154W. ISOLATED MODERATE TSTMS WITHIN 89
NM EITHER SIDE OF ITCZ.

$$

.FORECASTER BEDAL. HONOLULU HI.