FZPN40 PHFO 041520

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC MON MAY 04 2026



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W



SYNOPSIS VALID 1200 UTC MAY 04 2026.

24 HOUR FORECAST VALID 1200 UTC MAY 05 2026.

48 HOUR FORECAST VALID 1200 UTC MAY 06 2026.



.WARNINGS.



.NONE.

   

.SYNOPSIS AND FORECAST.



.FRONT 30N153W 24N163W 21N176W NEARLY STATIONARY. 

.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N152W 28N154W 

27N160W 21N170W. 

.48 HOUR FORECAST TROUGH MERGED WITH NEW FRONT MENTIONED BELOW.



.TROUGH 25N145W 22N145W MOVING W 10 KT.

.24 HOUR FORECAST TROUGH 25N148W 23N148W. 

.48 HOUR FORECAST TROUGH DISSIPATED.



.48 HOUR FORECAST NEW FRONT 30N153W 24N160W 21N166W. W WINDS 20 

TO 25 KT N OF 29N BETWEEN FRONT AND 160W. S TO SW WINDS 20 TO 25 

KT N OF 28N BETWEEN FRONT AND 146W.



.NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY 23N180W 25N164W 

23N164W 20N173W 08N168W 08N180W 23N180W.

.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY 

15N180W 17N152W 13N152W 10N160W 08N180W 15N180W...AND E OF LINE 

18N140W 14N150W 11N150W 10N140W. 

.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY 

22N180W 20N175W 14N175W 14N170W 08N170W 08N180W 22N180W...AND FROM

12N TO 17N E OF 148W. 



.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.



.SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 25N180W 30N165W 30N160W 

24N160W 18N170W 06N170W 06N180W 25N180W. SEAS 2.5 TO 3 M FROM 09N 

TO 16N E OF 165W.

.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 22N180W 

17N140W 09N140W 05N180W 22N180W.

.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N177W 28N172W 

28N165W 30N158W. SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 20N150W 

16N140W 09N140W 09N151W 15N151W 20N150W. SEAS 2.5 TO 3 M W OF LINE

22N180W 15N170W 15N160W 11N160W 05N180W. 



.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.



.ITCZ 07N140W 08N147W 08N153W 02N165W. ISOLATED MODERATE TSTMS 

WITHIN 300 NM N AND 60 NM S OF ITCZ. 



.ISOLATED MODERATE TSTMS S OF 10N W OF 170W.



$$



.FORECASTER JELSEMA. HONOLULU HI.