FZPN40 PHFO 091029

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 09 2025.

24 HOUR FORECAST VALID 0600 UTC MAY 10 2025.

48 HOUR FORECAST VALID 0600 UTC MAY 11 2025.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.FRONT 30N161E 29N160E MOVING E 10 KT. ISOLATED TSTMS N OF 22N

BETWEEN 167E AND FRONT.

.24 HOUR FORECAST FRONT NEAR 30N174E 23N174E 20N173E. WINDS 20 TO

25 KT N OF 28N BETWEEN 174E AND 163E. 

.48 HOUR FORECAST FRONT 30N177W 26N178W 22N177E. ASSOCIATED WINDS

MOVE N OF AREA. 



.TROUGH 30N169E 25N170E 22N172. TROUGH NEARLY STATIONARY. 

ISOLATED MODERATE TSTMS N OF 21N BETWEEN 176W AND 175E.

.24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.



.TROUGH 30N147W 25N164W 25N167W NEARLY STATIONARY. WINDS 20 TO 25

KT FROM 29N TO 19N BETWEEN 155W AND 178E.

.24 HOUR FORECAST TROUGH 30N144W 27N153W. WINDS 20 TO 25 KT N OF

LINE 30N166W 27N150W 20N164W 30N176W.

.48 HOUR FORECAST TROUGH DISSIPATED. ASSOCIATED WINDS EASED 20 KT

OR LESS. 



.WINDS 20 TO 25 KT FROM 16N TO 06N BETWEEN 152W AND 173W...AND

FROM 16N TO 12N E OF 153W. 

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 17N TO 07N E OF 168W.

.48 HOUR FORECAST WINDS 20 TO 25 KT IN AREA BOUNDED BY 28N161W 

24N148W 19N140W 08N140W 05N157W 08N175W 18N166W 20N154W 23N162W 

27N163W 28N161W.



.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.



.SEAS 8 TO 10 FT FROM 29N TO 01N BETWEEN 154W AND 179W.

.24 HOUR FORECAST SEAS 8 TO 10 FT IN AREA BOUNDED BY 30N179W 

28N175W 26N159W 19N169W 12N140W 00N144W 03N162W 00N165W 00N168W 

05N176W 30N179E...AND N OF LINE 30N166E 26N160E.

.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 18N TO 03N E OF 178E. SEAS

8 TO 9 FT N OF 28N BETWEEN 176E AND 170E.



.SEAS 8 FT OR LOWER REMAINDER OF FORECAST AREA.



.ITCZ 03N148W 04N166W 00N178E 03N160E. ISOLATED MODERATE TSTMS 

WITHIN 180 N NM OF ITCZ W OF 168W...AND WITHIN 120 NM ELSEWHERE.



.ISOLATED MODERATE TSTMS FROM 20N TO 15N BETWEEN 160W AND

175W...AND S OF 13N W OF 173E.





$$



.FORECASTER PIERCE. HONOLULU HI.