642  
FZPS40 PHFO 170346 AAA  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
0530 UTC WED JUL 17 2019  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 0000 UTC JUL 17 2019.  
24 HOUR FORECAST VALID 0000 UTC JUL 18 2019.  
48 HOUR FORECAST VALID 0000 UTC JUL 19 2019.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.COLD FRONT FROM 25S131W TO 21S136W TO 18S142W TO 16S148W MOVING E  
15 KT. ISOLATED MODERATE TSTMS S OF 18S WITHIN 480 NM E OF FRONT.  
WINDS INCREASING TO SE TO NE 20 TO 25 KT S OF 21S BETWEEN FRONT AND  
160W.  
.24 HOUR FORECAST FRONT FROM 25S128W TO 20S133W TO 16S141W. WINDS NE  
TO NW 20 TO 30 KT S OF 20S BETWEEN FRONT AND 140W. WINDS SE TO E 20  
TO 25 KT FROM 23S BETWEEN 150W AND FRONT.  
.48 HOUR FORECAST FRONT FROM 25S123W TO 18S129W TO 15S139W. WINDS N  
TO NW 20 TO 25 KT S OF 23S BETWEEN FRONT AND 140W. WINDS W TO S 20  
TO 30 KT S OF 23S BETWEEN 150W AND FRONT.  
 
.COLD FRONT FROM 25S172W TO 21S178W TO 18S175E MOVING E 15 KT.  
.24 HOUR FORECAST FRONT FROM 25S168W TO 21S173W TO 18S179E.  
.48 HOUR FORECAST FRONT FROM 25S162W TO 21S170W.  
 
.TROUGH FROM 08S160E TO 07S170E TO 13S179W NEARLY STATIONARY.  
ASSOCIATED TSTMS INCLUDED BELOW.  
.24 HOUR FORECAST TROUGH FROM 07S165E TO 13S177E.  
.48 HOUR FORECAST TROUGH FROM 07S165E TO 14S173E TO 23S179E.  
 
.TROUGH FROM 08S178W TO 12S174W TO 16S169W MOVING NW 10 KT.  
ASSOCIATED TSTMS INCLUDED BELOW.  
.24 HOUR FORECAST TROUGH FROM 07S179E TO 15S173W TO 19S177W.  
.48 HOUR FORECAST TROUGH FROM 08S177E TO 14S177W TO 21S170W.  
 
.TROUGH FROM 07S140W TO 15S139W MOVING NW SLOWLY.  
.24 HOUR FORECAST TROUGH FROM 08S154W TO 09S145W TO 15S139W.  
.48 HOUR FORECAST TROUGH FROM 09S145W TO 15S139W.  
 
.RIDGE FROM 22S120W TO 19S125W.  
.24 HOUR FORECAST RIDGE FROM 22S120W TO 13S130W.  
.48 HOUR FORECAST RIDGE FROM 19S120W TO 13S130W.  
 
.RIDGE FROM 25S160W TO 19S171W.  
.24 HOUR FORECAST RIDGE FROM 25S158W TO 20S165W.  
.48 HOUR FORECAST RIDGE FROM 25S155W TO 22S160W.  
 
.RIDGE FROM 23S160E TO 21S168E TO 22S175E.  
.24 HOUR FORECAST RIDGE FROM 23S160E TO 24N178E.  
.48 HOUR FORECAST RIDGE FLATTENED OVER FORECAST AREA.  
 
.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.  
 
.SEAS 8 TO 11 FT WITHIN AN AREA BOUND BY 17S160E 20S177E 25S175W  
22S154W 22S140W 25S120W 25S160E 17S160E.  
.24 HOUR FORECAST SEAS 8 TO 13 FT WITHIN AN AREA BOUND BY 17S175E  
24S165W 20S147W 20S120W 25S120W 25S160E 22S160E 17S175E.  
.48 HOUR FORECAST SEAS 8 TO 15 FT WITHIN AN AREA BOUND BY 17S154W  
17S130W 22S120W 25S160W 17S154W. ALSO SEAS 8 TO 11 FT WITHIN AN AREA  
BOUND BY 16S173E 20S175W 25S173W 25S160E 22S160E 16S173E.  
 
.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.  
 
.OTHERWISE SCATTERED MODERATE TO STRONG TSTMS FROM 08S TO 15S BETWEEN  
170W AND 165W...AND ALSO FROM 00S TO 03S BETWEEN 172W AND 162W.  
ISOLATED MODERATE TSTMS ELSEWHERE FROM 00S TO 17S BETWEEN 160E AND  
160W.  
 

 
 
.FORECASTER BEDAL. HONOLULU HI.  
 
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