000
FZPN40 PHFO 232238
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT JAN 23 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 23 2021.
24 HOUR FORECAST VALID 1800 UTC JAN 24 2021.
48 HOUR FORECAST VALID 1800 UTC JAN 25 2021.

.WARNINGS.

...GALE WARNING...
.FIRST TROUGH FROM 30N173W TO 26N173W TO 20N180E TO 16N175E MOVING 
E SLOWLY. SECOND TROUGH FROM 27N178W TO 24N177E NEARLY STATIONARY. 
NE TO E WINDS 20 TO 25 KT WITHIN 480 NM N OF A LINE FROM 30N174W 
TO 24N175E TO 16N165E. E TO SE WINDS 20 TO 25 KT N OF A LINE FROM 
16N165W TO 26N173W TO 30N174W. SCATTERED MODERATE TSTMS WITHIN 360 
NM E OF FIRST TROUGH N OF 19N.
.24 HOUR FORECAST NEW LOW 30N172W 1007 MB. TROUGH FROM LOW TO 
25N172W TO 18N174W. SECOND TROUGH DISSIPATED. S WINDS 30 TO 35 KT 
WITHIN 300 NM E SEMICIRCLE OF LOW. SE WINDS 20 TO 30 KT ELSEWHERE 
N OF A LINE FROM 30N172W TO 20N165W. NE TO E WINDS N OF A LINE 
FROM 30N172W TO 23N180E TO 24N174E.
.48 HOUR FORECAST LOW NEAR 30N176W 1008 MB. TROUGH FROM LOW TO 
20N172W TO 15N168W. WINDS 20 TO 25 KT WITHIN 120 NM OF LOW.

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT NEAR 30N160E. S TO SW WINDS 30 TO 35 
KT N OF 28N W OF 164E. SW WINDS 20 TO 30 KT ELSEWHERE N OF A LINE 
FROM 30N168E TO 23N160E.
.48 HOUR FORECAST FRONT FROM 30N168E TO 27N165E TO 22N160E. SW 
WINDS 30 TO 40 KT WITHIN 180 NM E OF FRONT N OF 27N. WINDS 20 TO 
30 KT ELSEWHERE N OF A LINE FROM 30N175E TO 24N166E TO 23N160E.

.SYNOPSIS AND FORECAST.

.HIGH 30N169E 1022 MB MOVING ENE 15 KT. RIDGE FROM HIGH TO 
26N160E.
.24 HOUR FORECAST HIGH MOVED N OF AREA.

.E WINDS 20 TO 25 KT N OF 14N BETWEEN 150W AND 165W...AND N OF 08N 
E OF 150W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 30 KT N OF A LINE FROM 
20N165W TO 07N150W TO 07N140W.
.48 HOUR FORECAST E TO SE WINDS 20 TO 30 KT N OF A LINE FROM 
25N170W TO 10N155W TO 05N140W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 15 FT IN AREA BOUNDED BY 30N177W 30N151W 22N154W
18N175E 22N175E 30N177W. SEAS 8 FT OR LESS N OF A LINE FROM 
30N173E TO 25N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 
05N140W TO 14N155W TO 03N180E TO 08N160E.
.24 HOUR FORECAST SEAS 12 TO 13 FT IN AREA BOUNDED BY 30N172W 
30N150W 24N145W 18N150W 30N172W...AND N OF 29N W OF 163E. SEAS 8 
FT OR LESS S OF A LINE FROM 26N160E TO 20N170E TO 00N180E TO 
05N160W TO 06N140W. SEAS 8 TO 12 FT REST OF AREA.
.48 HOUR FORECAST SEAS 18 TO 21 FT N OF A LINE FROM 30N167E TO
28N160E. SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 30N171E TO
26N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N175E TO
22N160E. SEAS 8 TO 12 FT E OF A LINE FROM 30N177E TO 00N170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. 

.ITCZ FROM 05N140W TO 08N156W...AND FROM 07N171W TO 07N180E TO 
02N165E. ISOLATED MODERATE TSTMS E OF 156W WITHIN 180 NM N OF 
ITCZ AND 90 NM S OF ITCZ.

$$

.FORECASTER WROE. HONOLULU HI.