High Seas Forecast
Issued by NWS
Issued by NWS
389 FZPS40 PHFO 240328 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0530 UTC TUE SEP 24 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 0000 UTC SEP 24 2024. 24 HOUR FORECAST VALID 0000 UTC SEP 25 2024. 48 HOUR FORECAST VALID 0000 UTC SEP 26 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH FROM 18S151W TO 22S148W TO 25S144W NEARLY STATIONARY. WINDS 20 TO 25 KT S OF 22S WITHIN 240 NM E OF TROUGH. .24 HOUR FORECAST NEW LOW NEAR 25S149W 1012 MB. TROUGH FROM LOW TO 23S140W. WINDS 20 TO 30 KT OVER FORECAST WATERS S OF TROUGH. .48 HOUR FORECAST LOW JUST S OF FORECAST AREA NEAR 27S146 1012 MB. TROUGH FROM LOW TO 25S140W TO 25S132W. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS OVER FORECAST WATERS. .COLD FRONT FROM 25S124W TO 24S130W MOVING ESE 20 KT. .24 HOUR FORECAST FRONT FROM 24S120W TO 22S124W. .48 HOUR FORECAST FRONT MOVED E OF FORECAST AREA. .TROUGH FROM 19S163W TO 25S165W NEARLY STATIONARY. .24 HOUR FORECAST TROUGH FROM 25S160W TO 21S163W TO 19S168W. .48 HOUR FORECAST DEVELOPING COLD FRONT FROM 25S155W TO 21S159W TO 19S168W. .TROUGH FROM 13S170E TO 19S169E TO 25S168E MOVING WNW SLOWLY. ISOLATED MODERATE TSTMS WITHIN 360 NM E OF TROUGH. .24 HOUR FORECAST TROUGH DISSIPATED. .TROUGH FROM 09S171W TO 09S179W TO 12S174E NEARLY STATIONARY. SCATTERED MODERATE TSTMS WITHIN 210 NM EITHER SIDE OF TROUGH. .24 HOUR FORECAST TROUGH FROM 05S173E TO 08S173W TO 16S162W. ASSOCIATED WINDS INCLUDED BELOW. .48 HOUR FORECAST TROUGH FROM 07S176E TO 11S173W TO 16S157W. ASSOCIATED WINDS INCLUDED BELOW. .TROUGH FROM 06S164W TO 11S161W TO 16S153W MOVING W 10 KT. .24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED IMMEDIATELY ABOVE. .48 HOUR FORECAST NEW TROUGH FROM 07S166W TO 14S151W. .WINDS E TO SE 20 TO 25 KT FROM 12S TO 24S BETWEEN 160E AND 165E. .24 HOUR FORECAST WINDS E TO SE 20 TO 25 KT FROM 08S TO 24S BETWEEN 160E AND 179E...AND ALSO FROM 10S TO 16S BETWEEN 130W AND 120W. .48 HOUR FORECAST WINDS E TO SE 20 TO 25 KT FROM 10S TO 20S BETWEEN 160E AND 176W. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .48 HOUR FORECAST SEAS 8 TO 10 FT FROM 19S TO 25S BETWEEN 167E AND 177W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. $$ .FORECASTER BEDAL. HONOLULU HI.