FZPS40 PHFO 230353
HSFSP

HIGH SEAS FORECAST
NWS NATIONAL WEATHER SERVICE HONOLULU HI
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0530 UTC WED APR 23 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 0000 UTC WED APR 23.
24 HOUR FORECAST VALID 0000 UTC THU APR 24.
48 HOUR FORECAST VALID 0000 UTC FRI APR 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 20S163W 1008 MB MOVING SW. TROUGH FROM 16S154W TO LOW 
TO 21S166W THEN STATIONARY FRONT FROM 21S166W TO BEYOND 25S167W. 
ASSOCIATED WINDS AND SEAS BELOW. NUMEROUS MODERATE TO LOCALLY 
STRONG TSTMS S OF 10S BETWEEN 151W AND 163W. 
.24 HOUR FORECAST LOW NEAR 20S159W 1006 MB. TROUGH FROM 21S154W 
TO LOW. SECOND TROUGH FROM LOW TO 25S161W. ASSOCIATED WINDS AND 
SEAS BELOW. 
.48 HOUR FORECAST LOW NEAR 22S154W 1007 MB. TROUGH 
FROM 12S170W TO 15S160W TO LOW. SECOND TROUGH FROM LOW TO 
25S152W. ASSOCIATED WINDS AND SEAS BELOW.
 
.TROUGH 16S179E 17S170E 19S165E 15S159E MOVING WSW SLOWLY. 
SCATTERED MODERATE TO STRONG TSTMS S OF TROUGH BETWEEN 162E AND
166E...AND WITHIN 360 NM N OF TROUGH W OF 165E. 
.24 HOUR FORECAST LOW NEAR 15S160E 1007 MB. TROUGH 21S167E TO 
LOW. 
.48 HOUR FORECAST LOW MOVED W OF AREA. TROUGH 22S168E TO 
13S160E.

.TROUGH 25S132W 18S139W 15S149W MOVING SW SLOWLY. ASSOCIATED 
WINDS AND SEAS BELOW. ISOLATED MODERATE TSTMS S OF 18S W OF 131W.
.24 HOUR FORECAST TROUGH 25S137W 15S137W. ASSOCIATED WINDS AND 
SEAS BELOW.
.48 HOUR FORECAST TROUGH 25S141W 23S138W. ASSOCIATED WINDS AND 
SEAS BELOW. 

.TROUGH/ITCZ 04S144W 05S170W 04S178E MOVING W SLOWLY. ISOLATED 
MODERATE TSTMS WITHIN FROM 09S TO 00S BETWEEN 135W AND 144W AND 
BETWEEN 167.5W AND 178E. 
.24 HOUR FORECAST TROUGH/ITCZ 03S132W 02.5S170W 04S177W. 
.48 HOUR FORECAST TROUGH/ITCZ 04S125W 05S161W 05S171W.

.WINDS 20 TO 30 KT S OF 17N BETWEEN 130W AND 164W. 
.24 HOUR FORECAST WINDS 20 TO 25 KT S OF LINE 25S139W 18S148W 
22S155W. 
.48 HOUR FORECAST WINDS 20 TO 30 KT S OF 21S BETWEEN 
157W AND 179W...AND S OF 24S AND E OF 170E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT S OF 02S BETWEEN 120W AND 140W...AND 8 TO 13 FT 
S OF 17S BETWEEN 120W AND 172W.
.24 HOUR FORECAST SEAS 8 TO 12 FT S OF 01S BETWEEN 120W AND 
166W...AND 12 TO 13 FT S OF 24S AND E OF 138W. 
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF 1.5S AND E OF 135W.

.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 25S BETWEEN 150W AND 
159E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.SCATTERED MODERATE TSTMS FROM 02S TO 08S AND W OF 165E.


$$
.FORECASTER KRV.HONOLULU HI. HONOLULU HI.