FZPN40 PHFO 192200
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE MAY 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAY 19 2026.
24 HOUR FORECAST VALID 1800 UTC MAY 20 2026.
48 HOUR FORECAST VALID 1800 UTC MAY 21 2026.

.WARNINGS.

.NONE.
   
.SYNOPSIS AND FORECAST.

.TROUGH 30N170W 24N173W 19N172W MOVING W 10 KT.
.24 HOUR FORECAST WEAK TROUGH 30N173W 26N176W 22N177W.
.48 HOUR FORECAST TROUGH 30N177W 28N180W.

.WINDS 20 TO 25 KT FROM 20N TO 27N BETWEEN 140W AND 152W.
.24 HOUR FORECAST WINDS 20 TO 25 KT IN AREA BOUNDED BY 16N180W 
20N160W 27N160W 27N140W 07N140W 07N180W 16N180W.
.48 HOUR FORECAST WINDS 20 TO 25 KT IN AREA BOUNDED BY 18N180W 
27N164W 29N141W 08N142W 08N180W 18N180W. 

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

.SEAS 2.5 TO 3.5 M E OF LINE 30N151W 19N154W 10N170W.
.24 HOUR FORECAST SEAS 2.5 TO 3.5 M E OF LINE 27N152W 17N161W 
13N173W 08N173W. 
.48 HOUR FORECAST SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 14N180W 
25N160W 27N140W 06N140W 06N155W 07N180W 14N180W. 

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

.ITCZ 05N140W 05N160W 04N180W. ISOLATED MODERATE TSTMS WITHIN 01N
TO 08N BETWEEN 156W AND 175W.


$$

.FORECASTER ALMANZA. HONOLULU HI.