FZPN40 PHFO 090308

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

0500 UTC FRI MAY 09 2025



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 09 2025.

24 HOUR FORECAST VALID 0000 UTC MAY 10 2025.

48 HOUR FORECAST VALID 0000 UTC MAY 11 2025.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.FRONT NEAR 30N160E MOVING E 10 KT. 

.24 HOUR FORECAST FRONT NEAR 30N166E 25N160E. WINDS 20 TO 25

KT AND SEAS 8 TO 10 FT N OF FRONT.

.48 HOUR FORECAST FRONT 30N178W 27N179E 23N176E. ASSOCIATED WINDS 

MOVE N OF AREA. SEAS 8 TO 10 FT N OF 27N W OF 170E. 



.TROUGH 30N170E 27N171E 25N173E. TROUGH NEARLY STATIONARY. WINDS 

20 TO 25 KT N OF 20N BETWEEN 178E AND 150W. SCATTERED MODERATE 

TSTMS FROM 20N TO 30N BETWEEN 175E AND 176W.

.24 HOUR FORECAST TROUGH 30N173E 25N175E 22N176E. WINDS 20 TO 25 

KT FROM 22N TO 30N BETWEEN TROUGH AND 160W. 

.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.



.WINDS 20 TO 25 KT FROM 05N TO 20N BETWEEN 175W AND 150W. 

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 08N TO 18N BETWEEN 169W

AND 155W.  

.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 05N TO 15N E OF 172W...

AND FROM 15N TO 30N BETWEEN 170W AND 148W. 



.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.



.SEAS 8 TO 10 FT N OF 20N BETWEEN 180W AND 160W. 

.24 HOUR FORECAST SEAS 8 TO 10 FT N OF LINE 30N175E 15N170W

30N160W. 

.48 HOUR FORECAST SEAS SUBSIDE TO LESS THAN 8 FT. 



.SEAS 8 FT OR LOWER REMAINDER OF FORECAST AREA.



.ITCZ 05N140W 03N150W 03N170W. ISOLATED MODERATE TSTMS WITHIN 

180 NM OF ITCZ.



.SCATTERED MODERATE TSTMS FROM 15N TO 20N W OF 175E. 









$$



.FORECASTER PECHACEK. HONOLULU HI.