High Seas Forecast
Issued by NWS
Issued by NWS
771 FZPS40 PHFO 241527 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC TUE SEP 24 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC SEP 24 2024. 24 HOUR FORECAST VALID 1200 UTC SEP 25 2024. 48 HOUR FORECAST VALID 1200 UTC SEP 26 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .LOW 24S147W 1012 MB. TROUGH FROM LOW TO 18S150W 09S160W 06S166W 07S175E. TROUGH AND LOW MOVING S SLOWLY. WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT S OF 22S BETWEEN 140W AND LOW. SCATTERED MODERATE TSTMS WITHIN 180 NM OF TROUGH W OF 162W. .24 HOUR FORECAST LOW MOVED S OF AREA. TROUGH 25S145W 15S150W 08S160W. ASSOCIATED WINDS AND SEAS MOVED S OF AREA. .48 HOUR FORECAST TROUGH ABSORBED BY TROUGH DESCRIBED DIRECTLY BELOW. .LOW 24S164W 1012 MB. TROUGH FROM LOW TO 117S164W. TROUGH AND LOW MOVING SE 15 KT. .24 HOUR FORECAST LOW MOVED S OF AREA. TROUGH DEVELOPED INTO FRONT 25S157W 19S158W THENCE TROUGH 11S165W 03S175W. .48 HOUR FORECAST FRONT 25S150W 22S153W THENCE TROUGH 12S157W 04S164E. .WEAK FRONT 25S120W 21S125W MOVING E 15 KT. .24 HOUR FORECAST FRONT MOVED E OF AREA. .E TO SE WINDS 20 TO 25 KT W OF LINE 10S177W 20S177E 25S166E. .24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 25S TO 11S BETWEEN 180W AND 161E. .48 HOUR FORECAST SE WINDS 20 TO 25 KT FROM 20S TO 10S BETWEEN 179E AND 162E. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .24 HOUR FORECAST SEAS 8 TO 9 FT FROM 16S TO 10S E OF 130W...AND S OF 21S BETWEEN 177E AND 162E. .48 HOUR FORECAST SEAS 8 TO 10 FT S OF 11S BETWEEN 175W AND 168E. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. $$ .FORECASTER ALMANZA. HONOLULU HI.