High Seas Forecast
Issued by NWS
Issued by NWS
345 FZPS40 PHFO 021505 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1730 UTC THU MAY 02 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 02 2024. 24 HOUR FORECAST VALID 1200 UTC MAY 03 2024. 48 HOUR FORECAST VALID 1200 UTC MAY 04 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 04S164E 10S178W 10S158W MOVING SW SLOWLY. NUMEROUS MODERATE TSTMS FROM 17S TO 10S BETWEEN 170W AND 157W. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 240 NM OF TROUGH W OF 177W. .24 HOUR FORECAST TROUGH 05S162E 11S174E 13S173W. .48 HOUR FORECAST NEW LOW NEAR 14S175W 1006 MB. TROUGH 06S160E 11S172E 11S180W TO LOW TO 18S171W. .TROUGH 25S173W 14S170E 11S160E NEARLY STATIONARY. SE WINDS 20 TO 25 KT S OF TROUGH. SCATTERED MODERATE TSTMS WITHIN 240 NM N OF TROUGH W OF 180E.... AND S OF TROUGH E OF 177E. ISOLATED MODERATE TSTMS WITHIN 300 NM N OF TROUGH E OF 180W... .24 HOUR FORECAST TROUGH 25S173E 15S180. SE WINDS 20 TO 25 KT S OF TROUGH. .48 HOUR FORECAST TROUGH 25S168W 15S180E. SE WINDS 20 TO 25 KT FROM 20S TO A LINE 18S180E 11S160E. .TROUGH 25S130W 20S137W 19S145W MOVING E SLOWLY. ISOLATED MODERATE TSTMS WITHIN 60 NM OF TROUGH. .24 HOUR FORECAST TROUGH STRENGTHENED TO A FRONT 25S125W 19S133W 18S142W. .48 HOUR FORECAST FRONT 25S122W 20S130W. .SE TO E WINDS 20 TO 25 KT S OF A LINE 25S131W 19S140W 16S150W 20S160W. .24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT BETWEEN A LINE FROM 22S TO 17S BETWEEN 157W AND 140W. .48 HOUR FORECAST SE TO E WINDS 20 TO 25 KT FROM 22S TO 17S BETWEEN 150W AND 132W. .WINDS 20 KT OR LESS OVER REMAINDER OF AREA. .SEAS 8 TO 12 FT S OF A LINE FROM 25S130W TO 16S160W TO 14S170W. .24 HOUR FORECAST SEAS 8 TO 12 FT S OF 17S E OF 162W... AND S OF 20S W OF 178W. .48 HOUR FORECAST SEAS 8 TO 11 FT S OF 16S E OF 140W... AND FROM 22S TO 17S BETWEEN 157W AND 140W. SEAS 8 TO 9 FT S OF 15S W OF 180W. .SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. $$ .FORECASTER SHIGESATO. HONOLULU HI.