FZPN40 PHFO 201515

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC SAT JUN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUN 20 2026.

24 HOUR FORECAST VALID 1200 UTC JUN 21 2026.

48 HOUR FORECAST VALID 1200 UTC JUN 22 2026.



.WARNINGS.



.NONE.

   

.SYNOPSIS AND FORECAST.



.FRONT 30N158W 27N163W 26N166W NEARLY STATIONARY THENCE TROUGH 

23N172W 24N178W 22N179W. 

.24 HOUR FORECAST FRONT BECOMES TROUGH 30N156W 25N165W.

.48 HOUR FORECAST TROUGH 30N155W 24N162W.



.TROUGH 22N164W 20N166W 17N169W MOVING W SLOWLY.

.24 HOUR FORECAST TROUGH 22N168W 16N174W.

.48 HOUR FORECAST TROUGH DISSIPATED.



.TROUGH 22N141W 16N143W MOVING W 10 KT.

.24 HOUR FORECAST TROUGH 21N145W 15N146W. 

.48 HOUR FORECAST TROUGH 20N149W 12N152W. 



.TROUGH 10N176W 05N180W MOVING W 10 KT. SCATTERED MODERATE 

TSTMS WITHIN 180 NM OF TROUGH.

.24 HOUR FORECAST TROUGH MOVED W OF AREA.



.ITCZ 07N140W 05N160W 06N176W...ISOLATED MODERATE TSTMS WITHIN 

270 NM OF ITCZ.



.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER ENTIRE FORECAST

AREA.



.ISOLATED MODERATE TSTMS WITHIN AREA BOUNDED BY 14N168W 14N160W 

10N160W 10N168W.



$$



.FORECASTER VAUGHAN. HONOLULU HI.