####018002049####
FZPN40 PHFO 212238

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

2300 UTC SUN APR 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 21 2024.

24 HOUR FORECAST VALID 1800 UTC APR 22 2024.

48 HOUR FORECAST VALID 1800 UTC APR 23 2024.



.WARNINGS.



.NONE.   



.SYNOPSIS AND FORECAST.



.FRONT FROM 30N171E TO 26N166E TO 23N161E MOVING E 15 KT.

.24 HOUR FORECAST FRONT FROM 30N178E TO 25N174E.

.48 HOUR FORECAST FRONT WEAKENED TO A TROUGH FROM 30N180E TO 

25N174E.



.TROUGH FROM 30N140W TO 25N146W TO 18N152W NEARLY STATIONARY.

.24 HOUR FORECAST TROUGH FROM 26N140W TO 23N144W.

.48 HOUR FORECAST TROUGH MOVED E OF AREA.



.NE TO E WINDS 20 TO 25 KT FROM 05N TO 20N BETWEEN 175E AND

150W...AND FROM 05N TO 10N BETWEEN 160E AND 175E.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 05N TO 15N BETWEEN

170E AND 150W...AND FROM 05N TO 12N BETWEEN 150W AND 140W. 

.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 05N TO 15N W OF

160W...AND FROM 05N TO 25N BETWEEN 160W AND 145W.



.SEAS 8 TO 12 FT N OF 28N W OF 165E. SEAS 8 TO 10 FT FROM 

05N TO 10N BETWEEN 170E AND 160W. 

.24 HOUR FORECAST SEAS 8 TO 12 FT N OF 25N BETWEEN 175E AND

165E...AND FROM 05N TO 15N BETWEEN 180W AND 160W. 

.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 05N TO 15N BETWEEN 

175E AND 150W. 



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

AREA.



.ITCZ 00N172W 04N155W 06N140W. SCATTERED MODERATE TO LOCALLY 

STRONG TSTMS WITHIN 300 NM OF ITCZ...AND WITHIN 300 NM OF

POINT 02N171E. SCATTERED MODERATE TSTMS WITHIN 180 NM OF 

POINT 07N166W. 





$$



.FORECASTER PECHACEK. HONOLULU HI.