The High Seas Forecast for the Central North Pacific

High Seas Forecast   Issued: 12/22/2024 07:41:39 AM UTC

                        
025
FZPN40 PHFO 212141
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT DEC 21 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 21 2024.
24 HOUR FORECAST VALID 1800 UTC DEC 22 2024.
48 HOUR FORECAST VALID 1800 UTC DEC 23 2024.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N155W TO 25N170E TO 27N175E TO 23N160E MOVING E
25 KT E OF 165W AND NEARLY STATIONARY ELSEWHERE. SW TO W WINDS 30
TO 35 KT N OF 28N BETWEEN 145W AND 160W. SW TO W WINDS 20 TO 30 KT
ELSEWHERE N OF 26N E OF 165W.
.24 HOUR FORECAST FRONT FROM 30N142W TO 24N170W TO 26N176E. WINDS
FALLEN TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 28N140W TO 22N157W TO 25N168W.

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT FROM 30N165E TO 26N160E. SW WINDS 30
TO 35 KT N OF A LINE FROM 30N170E TO 26N160E. S TO SW WINDS 20 TO
30 KT ELSEWHERE N OF LINE 30N177E TO 23N160E.
.48 HOUR FORECAST FRONT FROM 30N175E TO 23N160E. SW TO W WINDS 30
TO 35 KT N OF A LINE FROM 30N175W TO 26N180E TO 27N160E. S TO SW
WINDS 20 TO 30 KT ELSEWHERE N OF LINE FROM 25N170E TO 24N177E TO
26N160W.

.SYNOPSIS AND FORECAST.

.NE TO E WINDS 20 TO 25 KT FROM 14N TO 05N.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 16N TO 05N.
E WINDS 20 TO 25 KT S OF 04N E OF 170W. W TO NW WINDS 20 TO 25 KT
N OF 28N BETWEEN 157W AND 167W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT BOUNDED IN AREA FROM
21N158W TO 12N140W TO 07N140W TO 00N158W TO 00N180E TO 05N164E TO
11N165E TO 21N158W. E TO SE WINDS 20 TO 25 KT WITHIN 150 NM OF A
LINE FROM 24N156W TO 25N165W TO 30N166W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 18N TO 21N N OF 28N BETWEEN 163W AND 177W. SEAS 18 TO 20 FT
N OF 23N E OF 144W. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM
18N140W TO 19N158W TO 26N162W TO 26N171E. SEAS 8 TO 12 FT
ELSEWHERE N OF A LINE FROM 06N140W TO 04N174E TO 24N171W TO
20N160E.
.24 HOUR FORECAST SEAS 18 TO 27N N OF A LINE FROM 30N141W TO
22N158W TO 30N162W. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM
28N140W TO 19N164W TO 30N175W. SEAS 12 TO 13 FT FROM 18N TO 12N
E OF 146W. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 03N140W TO
05N180E TO 26N169E TO 26N160E.
.48 HOUR FORECAST SEAS 18 TO 21 FT N OF A LINE FROM 30N168E TO
27N160E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 30N180E TO
25S160E. SEAS 12 TO 18 FT N OF A LINE FROM 15N140W TO 12N147W TO
30N163W. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 00N140W TO
05N150W TO 05N172W TO 14N173E TO 25N171W TO 23N160E.

.SEAS 8 FT OR LESS REMAINDER OF FORECAST AREA.

.ITCZ FROM 07N140W TO 08N140W TO 04N177W. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF ITCZ.


$$

.FORECASTER FOSTER. HONOLULU HI.