High Seas Forecast
Issued by NWS
Issued by NWS
398 FZPS40 PHFO 111438 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC SAT MAY 11 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 1200 UTC MAY 11 2024. 24 HOUR FORECAST VALID 1200 UTC MAY 12 2024. 48 HOUR FORECAST VALID 1200 UTC MAY 13 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 25S155W 16S165W...THENCE TROUGH TO 12S171W 08S170W 07S160E. FRONT MOVING E 10 KT S OF 19S. TROUGH NEARLY STATIONARY. SE WINDS 20 TO 25 KT S OF FRONT AND TROUGH. SCATTERED MODERATE TO STRONG TSTMS WITHIN 270 NM OF FRONT AND TROUGH. .24 HOUR FORECAST FRONT 25S150W 15S170W 12S175E THENCE TROUGH 10S170E 05S160E. WINDS 20 TO 25 KT S OF TROUGH AND FRONT. .48 HOUR FORECAST FRONT WEAKENED TO A TROUGH 21S157W 12S180W 12S176E 11S170E. WINDS 20 TO 25 KT S OF TROUGH. .FRONT 20S120W 22S128W. .24 HOUR FORECAST FRONT 18S120W 18S130W. .48 HOUR FORECAST FRONT 16S120W 14S127W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 12 TO 14 FT S OF 23S BETWEEN 176W AND 160W. SEAS 8 TO 12 FT S OF LINE 20S160E 10S175E 15S170W 25S155W. .24 HOUR FORECAST SEAS 12 TO 14 FT S OF 20S BETWEEN 165W AND 160W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 15S160E 10S170E 15S160W 25S150W. .48 HOUR FORECAST SEAS 12 TO 14 FT S OF 22S BETWEEN 165W AND 150W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 10S160E 10S160W 25S140W. .OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. $$ .FORECASTER PECHACEK. HONOLULU HI.