750  
FZPS40 PHFO 192243  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
2330 UTC FRI JAN 19 2018  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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  
 
SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E  
 
SYNOPSIS VALID 1800 UTC JAN 19 2018.  
24 HOUR FORECAST VALID 1800 UTC JAN 20 2018.  
48 HOUR FORECAST VALID 1800 UTC JAN 21 2018.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.FRONT FROM 25S169E TO 20S164E TO 18S160E NEARLY STATIONARY.  
SCATTERED MODERATE TO STRONG TSTMS WITHIN 600 NM NE OF FRONT AND  
FROM 05S TO 10S W OF 170E.  
.24 HOUR FORECAST FRONT FROM 25S168E TO 20S164E TO 17S160E.  
.48 HOUR FORECAST WEAK FRONT FROM 25S168E TO 21S160E.  
 
.TROUGH FROM 09S170W TO 17S157W MOVING WSW 10 KT. ISOLATED TO  
LOCALLY SCATTERED MODERATE TO STRONG TSTMS FROM 08S TO 22S  
BETWEEN 153W AND 172W. ISOLATED MODERATE TSTMS FROM 10S TO 18S  
BETWEEN 131W AND 150W.  
.24 HOUR FORECAST TROUGH FROM 08S180W TO 15S164W.  
.48 HOUR FORECAST TROUGH FROM 08S175E TO 14S175W TO 20S160W.  
 
.FRONT ALONG 25S FROM 133W TO 141W MOVING N SLOWLY. ISOLATED  
MODERATE TSTMS WITHIN 60 NM OF FRONT.  
.24 HOUR FORECAST FRONT WEAKENED INTO TROUGH FROM 25S135W TO  
23S140W.  
.48 HOUR FORECAST TROUGH DISSIPATED.  
 
.FRONT ALONG 25S FROM 163W TO 170W MOVING N SLOWLY. ISOLATED  
MODERATE TSTMS WITHIN 45 NM OF FRONT.  
.24 HOUR FORECAST FRONT DISSIPATED.  
 
.RIDGE FROM 25S175E TO 20S168E NEARLY STATIONARY.  
 
.RIDGE FROM 23S160E TO 21S163E NEARLY STATIONARY.  
 
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.  
 
.SEAS 8 TO 10 FT N OF 22S E OF 135W. SEAS 8 TO 9 FT S OF A LINE  
FROM 25S175W TO 13S175E TO 25S163E...AND FROM 10S TO 21S BETWEEN  
150W AND 170W.  
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 18S BETWEEN 150W AND  
170E...AND E OF 130W.  
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 16S TO 23S BETWEEN 170W AND  
180W...AND E OF 132W.  
 
.SEAS 8 FT OR LESS OVER REMAINDER OF FORECAST AREA.  
 

 
 
.FORECASTER WROE. HONOLULU HI.  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HI Page Main Text Page