


High Seas Forecast
Issued by NWS
Issued by NWS
030 FZPS40 PHFO 031504 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC THU APR 03 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. 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 1200 UTC APR 03 2025. 24 HOUR FORECAST VALID 1200 UTC APR 04 2025. 48 HOUR FORECAST VALID 1200 UTC APR 05 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 25S155W 22S159W 16S161W 12S171W NEARLY STATIONARY. SCATTERED TO NUMEROUS MODERATE TO STRONG TSTMS FROM 13S TO 20S BETWEEN 167W AND 150W. .24 HOUR FORECAST TROUGH 25S156W 19S160W 15S170W 15S175W 08S173E 08S163E. .48 HOUR FORECAST TROUGH 25S155W 18S160W 15S170W 16S177W 10S165E. .TROUGH 09S169W 03S180W MOVING SW 20 KT. SCATTERED MODERATE TSTMS WITHIN 180 NM NE OF TROUGH. .24 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED DIRECTLY ABOVE. .24 HOUR FORECAST NEW TROUGH 25S159W 22S166W. .48 HOUR FORECAST TROUGH 25S155W 20S163W. .48 HOUR FORECAST NEW FRONT 25S169E 23S166E 22S160E. .WINDS 20 KT OR LESS ENTIRE FORECAST AREA. .SEAS 8 TO 11 FT S OF LINE 25S170E 21S173E 21S170E 25S158W. SEAS 8 TO 9 FT E OF LINE 13S120W 14S136W 25S128W. .24 HOUR FORECAST SEAS 8 TO 12 FT S OF LINE 25S180W 19S170W 19S155W 25S146W. SEAS 8 TO 9 FT FROM 11S TO 18S E OF 126W. .48 HOUR FORECAST SEAS 8 TO 10 FT S OF 20S BETWEEN 170W AND 140W. SEAS 8 TO 9 FT FROM 12S TO 19S BETWEEN 133W AND 124W. .SEAS 8 FT OR LESS REMAINDER FORECAST AREA. .ITCZ 01S129W 05S140W 05S150W 07S154W 07S160W. SCATTERED MODERATE TSTMS WITHIN 90 NM N AND 60 NM S OF ITCZ W OF 144W. .SCATTERED MODERATE TSTMS FROM 14S TO 22S BETWEEN 140W AND 131W. ISOLATED TO SCATTERED MODERATE TSTMS IN AREA BOUNDED BY 03S160E 05S170E 02S176E 10S179W 18S179W 21S167E 10S160E 03S160E. $$ .FORECASTER JELSEMA. HONOLULU HI.