High Seas Forecast
Issued by NWS
Issued by NWS
006 FZPS40 PHFO 280931 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1130 UTC SUN APR 28 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC APR 28 2024. 24 HOUR FORECAST VALID 0600 UTC APR 29 2024. 48 HOUR FORECAST VALID 0600 UTC APR 30 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 25S171W 17S170E 10S160E NEARLY STATIONARY. SE WINDS 20 TO 25 KT S OF A LINE 25S172E 16S160E. SEAS 8 TO 9 FT S OF 22S W OF 176E. SCATTERED MODERATE TSTMS WITHIN 120 NM OF TROUGH W OF 172E. ISOLATED MODERATE TSTMS ELSEWHERE FROM 20S TO 10S W OF 175E. .24 HOUR FORECAST TROUGH 25S177E 17S176E 13S160E. SE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT S OF TROUGH W OF 170E. .48 HOUR FORECAST TROUGH 25S171W 16S175E. E TO SE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 15S TO 21S W OF 170E. SEAS DIMINISHED TO 8 FT OR LESS. .TROUGH 25S132W 19S136W 10S138W MOVING E SLOWLY S OF 19S AND NEARLY STATIONARY N OF 19S. ISOLATED MODERATE S OF 15S BETWEEN 135W AND 127W. .24 HOUR FORECAST TROUGH 25S131W 12S140W. .48 HOUR FORECAST TROUGH 25S134W 18S140W. .TROUGH 21S166W 13S166W MOVING SW SLOWLY. WINDS 20 TO 25 KT WITHIN 150 NM OF TROUGH. SEE TSTMS BELOW. .24 HOUR FORECAST TROUGH DISSIPATED. .48 HOUR FORECAST NEW TROUGH 10S168W 05S170W. .E TO SE WINDS 20 TO 25 KT FROM 20S TO 12S BETWEEN 145W AND 162W. .24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 23S TO 12S BETWEEN 166W AND 140W. .48 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM S OF 13S BETWEEN 145W AND 163W. .WINDS 20 KT OR LESS OVER REMAINDER OF AREA. .SEAS 8 TO 9 FT S OF LINE 25S130W 16S150W 20S164W... AND S OF 21S W OF 176E. .24 HOUR FORECAST SEAS 8 TO 9 FT S OF 21S E OF 140W... AND FROM 19S TO 14S BETWEEN 164W AND 155W. .48 HOUR FORECAST SEAS 8 TO 9 FT FROM 17S TO 14S BETWEEN 168W AND 162W. .SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. .ISOLATED MODERATE TSTMS FROM 15S TO 10S BETWEEN 160W AND 150W... AND FROM 12S TO 03S BETWEEN 180W AND 160W... AND N OF 10S W OF 180W... AND N OF 05S BETWEEN 160W AND 150W. $$ .FORECASTER SHIGESATO. HONOLULU HI.