


High Seas Forecast
Issued by NWS
Issued by NWS
053 FZPS40 PHFO 040300 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0530 UTC MON AUG 04 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC AUG 04 2025. 24 HOUR FORECAST VALID 0000 UTC AUG 05 2025. 48 HOUR FORECAST VALID 0000 UTC AUG 06 2025. .WARNINGS. ...GALE WARNING... .FRONT 25S168E 22S169E 20S166E THENCE TROUGH 12S157E MOVING E 15 KT. WINDS 30 TO 35 KT S OF 22S BETWEEN 173E AND 165E. WINDS 20 TO 30 KT ELSEWHERE S OF 22S W OF 175E. ISOLATED MODERATE TSTMS WITHIN 120 NM OF FRONT S OF 20S. .24 HOUR FORECAST FRONT 25S175E 22S173E THENCE TROUGH 20S170E 15S168E. WINDS 30 TO 35 KT WITHIN 180 NM E OF FRONT. WINDS 20 TO 25 KT ELSEWHERE S OF 20S BETWEEN 180W AND 172E. .48 HOUR FORECAST FRONT 25S177W 23S177W 20S180W THENCE TROUGH 15S175E. WINDS DIMINISHING TO 20 TO 30 KT WITHIN 180 NM E OF FRONT S OF 20S. .SYNOPSIS AND FORECAST. .FRONT 25S142W 20S145W 15S150W THENCE TROUGH 15S160W MOVING E 15 KT. .24 HOUR FORECAST FRONT 22S141W 20S147W THENCE TROUGH 15S153W. .48 HOUR FORECAST FRONT 23S140W 20S148W THENCE TROUGH 15S150W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 4 TO 5 M S OF 22S BETWEEN 165W AND 155W. SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 20S160E 18S180W 15S165W 20S140W. .24 HOUR FORECAST SEAS 4 TO 5.5 M S OF 20S BETWEEN 170W AND 148W. SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 20S160E 20S170E 18S180W 10S170W 10S155W 25S138W. .48 HOUR FORECAST SEAS 4 TO 5.5 M S OF 22S BETWEEN 163W AND 145W. SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 22S160E 10S170W 05S150W 25S130W. .SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA. .SCATTERED MODERATE TSTMS WITHIN 480 NM OF POINT 08S170E. $$ .FORECASTER PECHACEK. HONOLULU HI.