####018001731####
FZPN40 PHFO 301508

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC TUE APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 30 2024.

24 HOUR FORECAST VALID 1200 UTC MAY 01 2024.

48 HOUR FORECAST VALID 1200 UTC MAY 02 2024.



.WARNINGS.



.NONE.   



.SYNOPSIS AND FORECAST.



.WEAK TROUGH 30N159W 25N161W 21N166W.

.24 HOUR FORECAST TROUGH 30N159W 23N162W.  

.48 HOUR FORECAST TROUGH 30N160W 22N162W.



.WEAK TROUGH 22N179W 18N179W MOVING SLOWLY WEST.

.24 HOUR FORECAST TROUGH DISSIPATED. 



.TROUGH 26N165E 21N164E 18N165E. MOVING W AT 10 KT. 

.24 HOUR FORECAST TROUGH 21N163E 18N161E.

.48 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA. 



.WINDS 20 TO 25 KT FROM 05N TO 25N E OF 155W...AND FROM 05N TO

15N W OF 175W. 

.24 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 05N160W 20N160W

25N140W. 

.48 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 05N165W 15N165W

25N140W. 



.WINDS 20 KT OR LESS OVER REMAINDER OF AREA.



.SEAS 8 TO 9 FT FROM 05N TO 20N E OF 150W.  

.24 HOUR FORECAST SEAS LOWERED TO 8 FT OR LOWER. 



.SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.



.ITCZ 02N165W 05N153W 04N146W 05N140W. SCATTERED MODERATE TO

LOCALLY STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 170W AND

145W. 







$$



.FORECASTER PECHACEK. HONOLULU HI.