600  
FZPS40 PHFO 290346  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
0530 UTC WED MAR 29 2017  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 MAR 29 2017.  
24 HOUR FORECAST VALID 0000 UTC MAR 30 2017.  
48 HOUR FORECAST VALID 0000 UTC MAR 31 2017.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.LOW 05S127W 1012 MB NEARLY STATIONARY AND DISSIPATING. SCATTERED  
MODERATE TSTMS FROM 02S TO 09S BETWEEN 120W AND 134W.  
.24 HOUR FORECAST LOW DISSIPATED. REMNANT TROUGH FROM 09S127W TO  
05S131W.  
.48 HOUR FORECAST TROUGH FROM 10S131W TO 04S134W.  
 
.FRONT FROM 25S176E TO 17S168E NEARLY STATIONARY. SCATTERED MODERATE  
TSTMS WITHIN 500 NM NE AND E OF FRONT BETWEEN 14S AND 19S.  
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 25S176E TO  
16S167E.  
.48 HOUR FORECAST DISSIPATING TROUGH FROM 22S166E TO 16S163E.  
 
.TROUGH FROM 04S163E TO 09S173E TO 11S179E MOVING WSW 10 KT.  
SCATTERED MODERATE TSTMS WITHIN 300 NM SW AND W OF TROUGH W OF  
174E.  
.24 HOUR FORECAST DISSIPATING TROUGH FROM 07S160E TO 11S173E.  
.48 HOUR FORECAST TROUGH DISSIPATED.  
 
.TROUGH FROM 06S175W TO 11S171W TO 21S169W MOVING W 10 KT.  
ISOLATED MODERATE TSTMS WITHIN 300 NM OF TROUGH.  
.24 HOUR FORECAST TROUGH DISSIPATED.  
 
.TROUGH FROM 25S149W TO 22S153W TO 18S161W NEARLY STATIONARY.  
ISOLATED MODERATE TSTMS WITHIN 500 NM E OF TROUGH BETWEEN 22S AND  
16S.  
.24 HOUR FORECAST TROUGH DISSIPATED.  
 
.24 HOUR FORECAST FRONT S OF FORECAST AREA. E TO SE WINDS 20 TO  
25 KT S OF A LINE FROM 25S154W TO 22S158W TO 20S167W.  
.48 HOUR FORECAST FRONT FROM 25S134W TO 23S150W TO 23S160W TO  
24S172W. E TO SE WINDS 20 TO 30 KT S OF FRONT.  
 
.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF AREA.  
 
.SEAS 8 TO 10 FT SE OF A LINE FROM 15S148W TO 10S120W.  
.24 HOUR FORECAST SEAS 8 TO 9 FT SE OF A LINE FROM 12S120W TO  
25S139W. SEAS 8 TO 10 FT S OF A LINE FROM 25S169W TO 20S163W TO  
25S151W.  
.48 HOUR FORECAST SEAS 8 TO 13 FT S OF A LINE FROM 20S120W TO  
20S155W TO 25S171W.  
 
.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.  
 
.ITCZ FROM 05S132W TO 09S148W TO 09S161W. ISOLATED MODERATE TSTMS  
WITHIN 180 NM N OF ITCZ...WITHIN 240 NM S OF ITCZ W OF 150W...AND  
FROM 04S TO 13S BETWEEN 154W AND 165W.  
 
.ISOLATED TO SCATTERED MODERATE TSTMS FROM 03S TO 14S BETWEEN 176E  
AND 170E.  
 

 
 
.FORECASTER . HONOLULU HI.  
 
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