000
FZPN40 PHFO 280313
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SAT JAN 28 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JAN 28 2023.
24 HOUR FORECAST VALID 0000 UTC JAN 29 2023.
48 HOUR FORECAST VALID 0000 UTC JAN 30 2023.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N150W TO 25N152W TO 13N164W MOVING W SLOWLY. 
SCATTERED ISOLATED TSTMS WITHIN 90 NM EITHER SIDE OF TROUGH 
BETWEEN 16N AND 24N. 
.24 HOUR FORECAST TROUGH FROM 30N149W TO 24N154W TO 18N161W.
.48 HOUR FORECAST TROUGH FROM 30N152W TO 25N155W TO 19N160W.

.TROUGH FROM 30N164W TO 28N169W TO 28N176W MOVING E 10 KT.
.12 HOUR FORECAST WEAKENING TROUGH FROM 30N157W TO 27N162W. 
.24 HOUR FORECAST TROUGH MERGED WITH FIRST TROUGH MENTIONED 
ABOVE.

.48 HOUR FORECAST NEW FRONT FROM 30N156E TO 26N160E MOVING SE 15 
KT.  

.RIDGE FROM 30N140W TO 24N145W TO 20N152W MOVING NW SLOWLY. 

.RIDGE FROM 27N152W TO 26N160W TO 26N168W NEARLY STATIONARY

.RIDGE FROM 30N170E TO 24N160E NEARLY STATIONARY. 

.NE TO E WINDS 20 TO 30 KT FROM 04N TO 21N W OF 162W. E WINDS 20 
TO 25 KT FROM 07N TO 12N E OF 150W.
.24 HOUR FORECAST NE WINDS 20 TO 30 KT BETWEEN TWO LINES FROM 
30N159W TO 20N160W TO 02N176W TO 03N160E AND 30N166W TO 18N160E. 
E WINDS 20 TO 25 KT FROM 08N TO 12N BETWEEN 145W AND 153W. 
.48 HOUR FORECAST NE WINDS 20 TO 30 KT BETWEEN TWO LINES FROM 
28N154W TO 10N170W TO 01N179E TO 01N160E AND 28N164W TO 18N160E. 
E WINDS 20 TO 25 KT FROM 08N E OF 152W. 

.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 12 TO 14 FT N OF A LINE FROM 30N178E TO 23N168E. SEAS 8 TO 
12 FT ELSEWHERE EXCEPT FOR AN AREA BOUNDED BY 30N164W 22N166W 
23N179W 30N175W 30N164W.
.24 HOUR FORECAST SEAS 12 TO 14 FT BOUNDED BY AN AREA 23N180W 
18N170W 11N168W 23N178W 23N180W. SEAS 8 TO 12 FT ELSEWHERE BOUNDED
BY AN AREA 30N153W 01N179W 04N160E 21N160E 29N167E 27N160E.
.48 HOUR FORECAST SEAS 12 TO 14 FT BOUNDED BY AN AREA 24N158W 
08N172E 19N174E 24N158W...AND SEAS 8 TO 12 FT ELSEWHERE BETWEEN 
THE LINES FROM 29N146W TO 00N179W TO 00N160E AND 30N170W TO 
20N160E. SEAS 8 TO 10 FT N OF A LINE FROM 30N173E AND 24N160E. 

.OTHERWISE SEAS 8 OR LESS OVER REMAINDER OF FORECAST AREA. 

.ISOLATED MODERATE TSTMS WITHIN 180 NM OF 07N168E.

.ITCZ FROM 06N140W TO 06N160W TO 01N178W. ISOLATED MODERATE TSTMS 
WITHIN 180 NM EITHER SIDE OF ITCZ E OF 160W. 



$$

.FORECASTER BLOOD. HONOLULU HI.