####018001823####
FZPN40 PHFO 192115

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

2300 UTC FRI APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 19 2024.

24 HOUR FORECAST VALID 1800 UTC APR 20 2024.

48 HOUR FORECAST VALID 1800 UTC APR 21 2024.



.WARNINGS.



.NONE.   



.SYNOPSIS AND FORECAST.



.TROUGH FROM 25N140W TO 21N145W NEARLY STATIONARY.

.24 HOUR FORECAST TROUGH FROM 25N140W TO 21N144W.

.48 HOUR FORECAST TROUGH FROM 27N140W TO 21N146W.



.NEW FRONT JUST W OF AREA. S WINDS 20 TO 25 KT N OF 26N W OF 164E.

.24 HOUR FORECAST FRONT FROM 30N165E TO 25N160E. SW WINDS 20 TO

25 KT N OF 28N BETWEEN 170E TO 165E.

.48 HOUR FORECAST FRONT FROM 30N171E TO 22N160E. WINDS DECREASED 

TO 20 KT OR BELOW.



.NE TO E WINDS 20 TO 25 KT E TO NE WINDS 20 TO 25 KT FROM 16N TO

04N E OF 165E.

.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E TO NE WINDS 20 TO 

25 KT FROM 17N TO 04N E OF 165E.

.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E TO NE WINDS 20 TO 

25 KT FROM 17N TO 04N E OF 165E. 



.48 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 30N167E TO 

27N160E.



.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF 

AREA.



.ITCZ FROM 03N140W TO 05N154W 02N167W. ISOLATED MODERATE TSTMS

WITHIN 90 NM OF ITCZ.



.ITCZ FROM 03N173E TO 03N166E TO 05N161E. SCATTERED MODERATE

TSTMS S OF 09N W OF 179E.



$$



.FORECASTER FOSTER. HONOLULU HI.