550  
FZPN40 PHFO 121016  
HSFNP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
1100 UTC TUE MAY 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 MAY 12 2026.  
24 HOUR FORECAST VALID 0600 UTC MAY 13 2026.  
48 HOUR FORECAST VALID 0600 UTC MAY 14 2026.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.TROUGH 30N141W 26N147W 23N155W NEARLY STATIONARY AND DISSIPATING.  
.24 HOUR FORECAST TROUGH DISSIPATED.  
 
.TROUGH 08N140W 03N144W MOVING W SLOWLY. ISOLATED MODERATE  
TSTMS FROM 02N TO 09N E OF 146W.  
.24 HOUR FORECAST TROUGH 09N141W 04N145W.  
.48 HOUR FORECAST TROUGH DISSIPATED.  
 
.WINDS 20 TO 25 KT FROM 05N TO 25N BETWEEN 150W AND 175W.  
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 07N TO 25N.  
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 08N.  
 
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.  
 
.SEAS 2.5 TO 3 M FROM 07N TO 22N BETWEEN 150W AND 177W.  
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 08N TO 23N.  
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 06N.  
 
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.  
 
.ITCZ 06N145W 06N156W 06N164W 07N173W 05N180W. ISOLATED TO  
SCATTERED MODERATE TSTMS WITHIN 210 NM N OF ITCZ...AND WITHIN  
150 NM S OF ITCZ.  
 
 
 
.FORECASTER TSAMOUS. HONOLULU HI.  
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