FZPN40 PHFO 220930

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAR 22 2026.

24 HOUR FORECAST VALID 0600 UTC MAR 23 2026.

48 HOUR FORECAST VALID 0600 UTC MAR 24 2026.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.LOW NEAR 29N154W 1008 MB MOVING NE 20 KT. WARM FRONT FROM LOW TO

30N153W MOVING N 10 KT. TROUGH FROM LOW TO 24N160W 20N168W 17N170W

MOVING SW 10 KT. NE WINDS 20 TO 25 KT N OF LINE 30N163W 26N163W

30N153W. SCATTERED MODERATE TSTMS N OF 28N BETWEEN 159W AND 157W.

.24 HOUR FORECAST LOW AND WARM FRONT MOVED N OF AREA. TROUGH

STRENGTHENS INTO COLD FRONT 30N149W 23N155W THENCE TROUGH 13N169W

11N180W. NE TO E WINDS 20 TO 25 KT FROM 20N TO 25N BETWEEN 175W 

AND 165W.

.48 HOUR FORECAST COLD FRONT 30N142W 24N147W THENCE TROUGH 

20N157W 15N165W. NE TO E WINDS 20 TO 25 KT FROM 16N TO 23N 

BETWEEN 179W AND 164W.



.TROUGH 24N154W 20N158W 15N164W MOVING SW 10 KT. SCATTERED

MODERATE TSTMS WITHIN 150 NM E OF TROUGH. ISOLATED MODERATE TSTMS

WITHIN 150 NM W OF TROUGH.

.24 HOUR FORECAST TROUGH 25N147W 20N152W 10N160W. 

.48 HOUR FORECAST TROUGH 28N143W 20N148W 14N150W 08N155W.



.TROUGH 30N173W 27N171W 23N170W MOVING W 15 KT.

.24 HOUR FORECAST TROUGH DISSIPATED. 



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



.SEAS 3.5 TO 4.5 M IN AREA BOUNDED BY 30N163W 30N153W 24N166W

27N169W 30N163W. SEAS 2.5 TO 3.5 M ELSEWHERE N OF LINE 06N180W

12N165W 30N146W.

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

30N150W 23N160W 15N165W 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 07N161W 07N165W 05N172W 08N180W. ISOLATED 

MODERATE TSTMS WITHIN 210 NM N AND 150 NM S OF ITCZ W OF 155W.

ISOLATED MODERATE TSTMS WITHIN 180 NM N AND 30 NM S OF ITCZ E OF

146W.



$$



.FORECASTER JELSEMA. HONOLULU HI.