000
FZPN40 PHFO 011516
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI DEC 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC DEC 01 2023.
24 HOUR FORECAST VALID 1200 UTC DEC 02 2023.
48 HOUR FORECAST VALID 1200 UTC DEC 03 2023.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 25N166W 1010 MB. TROUGH 30N161W TO LOW TO 18N171W
TO 21N170W. TROUGH AND LOW MOVING NW SLOWLY. NE WINDS 20 TO 25 KT 
N OF 23N BETWEEN 169W AND 176W. SCATTERED MODERATE TSTMS WITHIN 
330 NM E SEMI-CIRCLE OF LOW. 
.24 HOUR FORECAST LOW NEAR 24N166W 1012 MB. TROUGH 30N163W TO LOW
TO 21N166W. 
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 24N164W 23N168W 19N168W.

.TROUGH 01N169E 03N160E NEARLY STATIONARY. ISOLATED MODERATE 
TSTMS WITHIN 180 NM OF TROUGH. 
.24 HOUR FORECAST TROUGH 04N174E 01N160E. 
.48 HOUR FORECAST TROUGH LITTLE CHANGE. 

.FRONT 30N165E 28N160E NEARLY STATIONARY AND DISSIPATING. 
.24 HOUR FORECAST FRONT DISSIPATED. 

.WINDS NE TO SE 20 TO 30 KT BOUNDED BY AREA 25N140W 14N140W 
06N149W 07N161W 30N156W 25N140W. NE TO E WINDS 20 TO 25 KT
FROM 20N TO 09N W OF 172E.  
.24 HOUR FORECAST WINDS E 20 TO 25 KT FROM 21N TO 08N E OF 
148W. NE WINDS 20 TO 25 KT FROM 19N TO 10N W OF 176E.  
.48 HOUR FORECAST WINDS NE 20 TO 25 KT FROM 18N TO 08N E OF
150W. NE WINDS 20 TO 25 KT FROM 21N TO 11N W OF 176W. 

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

.SEAS 8 TO 12 FEET N OF 16N BETWEEN 143W AND 178W. 
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF LINE 30N168E 16N171E 
30N160W.  SEAS 8 TO 9 FT FROM 20N TO 14N E OF 142W. 
.48 HOUR FORECAST E OF LINE 30N174W 22N144W 07N148W 06N140W. 
SEAS 8 TO 9 FT FROM 21N TO 15N W OF 178E. 

.SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. 

.ITCZ 04N140W 03N144W 04N145W 05N152W 05N158W. ISOLATED MODERATE 
TSTMS WITHIN 90 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 27N TO 17N BETWEEN 154W AND 160W.  


$$

.FORECASTER THOMAS. HONOLULU HI.