170  
FZPS40 PHFO 050316  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
0530 UTC SUN FEB 05 2023  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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.  
 
THE WEATHER FORECAST OFFICE (WFO) IN HONOLULU, HAWAII AND THE NWS  
NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION OCEAN PREDICTION  
CENTER (OPC) IS ACCEPTING PUBLIC COMMENTS UNTIL MONDAY FEBRUARY  
27 2023 ON A PROPOSAL TO DISCONTINUE THE FORECASTS OF HIGH  
PRESSURE SYSTEMS IN HIGH SEAS TEXT FORECASTS ISSUED BY WFO  
HONOLULU AND THE OPC. PLEASE VISIT WEATHER.GOV/HAWAII TO PROVIDE  
COMMENTS.  
 
SECURITE  
 
SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E  
 
SYNOPSIS VALID 0000 UTC FEB 05 2023.  
24 HOUR FORECAST VALID 0000 UTC FEB 06 2023.  
48 HOUR FORECAST VALID 0000 UTC FEB 07 2023.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.LOW NEAR 12S167E 1004 MB MOVING WSW 10 KT. TROUGH FROM 07S160E  
TO LOW AND NEAR STATIONARY FRONT FROM LOW TO 09S170E TO SECOND LOW  
BELOW. N TO NE WINDS 20 TO 30 KT WITHIN 270 NM E SEMICIRCLE OF  
LOW. SEAS 8 TO 12 FT FROM 23S TO 09S BETWEEN 175E AND 169E.  
SCATTERED MODERATE TO STRONG TSTMS WITHIN 240 MILES GENERALLY N  
AND E OF LOW AND FIRST TROUGH.  
.24 HOUR FORECAST LOW NEAR 15S162E 1001 MB. STATIONARY FRONT FROM  
LOW TO 21S166E TO 20S177E TO 25S168E. WINDS 20 TO 30 KT WITHIN  
240 NM E SEMICIRCLE OF LOW. SEAS 8 TO 12 FT WITHIN 210 NM E  
SEMICIRCLE OF LOW.  
.48 HOUR FORECAST LOW MOVED W OF FORECAST AREA. TROUGH ASSOCIATED  
WITH LOW FROM 20S160E TO 20S171E. WINDS 20 TO 30 KT AND SEAS 8 TO  
12 FT WITHIN 240 NM E SEMICIRCLE OF LOW.  
 
.LOW NEAR 23S173W 1006 MB MOVING SSE 15 KT. STATIONARY FROM LOW  
TO 23S169W TO 25S168W. WINDS 20 TO 30 KT WITHIN 210 NM OF LOW.  
SEAS 8 TO 9 FT WITHIN 150 NM OF LOW AND FRONT.  
.24 HOUR FORECAST LOW MOVED S OF FORECAST AREA. WINDS 20 TO 30 KT  
WITHIN 240 NM E OF TROUGH N OF LOW S OF 19S. SEAS 8 TO 9 FT  
WITHIN 180 NM E OF TROUGH S OF 20S.  
 
.RIDGE FROM 15S154W TO 13S176W TO 13S177E NEARLY STATIONARY.  
 
.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.  
 
.OTHERWISE SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.  
 
.ISOLATED MODERATE TSTMS FROM 22S TO 16S BETWEEN 146W AND 151W.  
 

 
 
.FORECASTER BLOOD. HONOLULU HI.  
 
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