FZPN40 PHFO 221541 CCA

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC SUN MAR 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 22 2026.

24 HOUR FORECAST VALID 1200 UTC MAR 23 2026.

48 HOUR FORECAST VALID 1200 UTC MAR 24 2026.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.LOW 1007 MB NEAR 30N154W MOVING NE 30 KT. TROUGH FROM LOW TO 

26N156W 22N163W 21N170W MOVING SE 15 KT. SW WINDS 20 TO 25 KT 

WITHIN 300 NM OF TROUGH N OF 23N. N TO NE WINDS 20 TO 25 KT N OF 

LINE 30N161W 28N161W 30N154W. SCATTERED MODERATE TSTMS WITHIN 150

NM OF TROUGH N OF 28N. 

.24 HOUR FORECAST LOW MOVED N OF AREA. TROUGH STRENGTHENED INTO 

COLD FRONT 30N147W 25N152W THENCE TROUGH 17N163W 13N170W 11N180W. 

NE TO E WINDS 20 TO 25 KT FROM 19N TO 25N BETWEEN 176W AND 165W. 

.48 HOUR FORECAST COLD FRONT 30N141W 25N145W THENCE TROUGH 

20N158W 15N165W. NE TO E WINDS 20 TO 25 KT FROM 15N TO 23N W OF 

164W.



.TROUGH 24N154W 22N156W 19N156W 14N165W MOVING SE 10 KT. 

SCATTERED MODERATE TSTMS WITHIN 210 NM E OF TROUGH. ISOLATED 

MODERATE TSTMS WITHIN 30 NM W OF TROUGH. 

.24 HOUR FORECAST TROUGH 24N147W 20N150W 13N155W 09N160W.

.48 HOUR FORECAST TROUGH 28N142W 25N145W 20N147W 12N149W.



.TROUGH 29N175W 27N173W 23N172W MOVING W 15 KT. 

.24 HOUR FORECAST TROUGH DISSIPATED.



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



.SEAS 2.5 TO 4 M N OF LINE 05N180W 10N165W 22N158W 30N146W.

.24 HOUR FORECAST SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 30N173W 

30N150W 23N160W 15N167W 15N180W 22N180W 30N173W.

.48 HOUR FORECAST SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 30N163W 

30N147W 14N170W 18N180W 26N178W 23N170W 30N163W.



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



.ITCZ 05N140W 06N155W 09N165W 06N168W 05N171W 09N180W. ISOLATED 

MODERATE TSTMS WITHIN 150 NM OF ITCZ.



$$



.FORECASTER JELSEMA. HONOLULU HI.