High Seas Forecast
Issued by NWS
Issued by NWS
829 FZPS40 PHFO 182237 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC TUE JUN 18 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 JULY 29 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 1800 UTC JUN 18 2024. 24 HOUR FORECAST VALID 1800 UTC JUN 19 2024. 48 HOUR FORECAST VALID 1800 UTC JUN 20 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 25S133W 21S133W 16S139W MOVING NE 10 KT. WINDS 20 TO 30 KT S OF 20S BETWEEN 123W AND 150W. SCATTERED MODERATE TSTMS S OF 16S BETWEEN 129W AND 135W. .24 HOUR FORECAST FRONT 25S127W 16S134W THENCE TROUGH TO 11S138W. WINDS 20 TO 30 KT S OF 19S E OF 142W. .48 HOUR FORECAST FRONT 25S121W 19S126W THENCE TROUGH 14S131W. WINDS 20 TO 30 KT S OF 22S E OF 130W. .TROUGH 04S167E 14S138W MOVING S SLOWLY. .24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED DIRECTLY ABOVE. .FRONT 25S176W 15S170E 10S160E. FRONT MOVING E 10 KT S OF 20S AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS WITHIN 120 NM OF FRONT. SE WINDS 20 TO 25 KT FROM 10S TO 13S W OF 163E. .24 HOUR FORECAST FRONT 25S172W 17S174E THENCE TROUGH TO 17S170E TO 08S160E. SE WINDS 20 TO 25 KT FROM 08S TO 14S W OF 168E. .48 HOUR FORECAST FRONT 25S163W 18S172W. TROUGH DISSIPATED. SE WINDS 20 TO 25 KT FROM 07S TO 13S W OF 166E. SE WINDS 20 TO 25 KT FROM 10S TO 18S W OF 170E. W TO NW WINDS 20 TO 30 KT S OF 23S BETWEEN 158W AND 171W. .TROUGH 02S169E 08S174E MOVING W 15 KT. NUMEROUS MODERATE TSTMS N OF 11S BETWEEN 176E AND 162E. .24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED DIRECTLY ABOVE. .TROUGH 05S180W 09S173W MOVING W 10 KT. SCATTERED MODERATE TSTMS FROM 03S TO 11S BETWEEN 170W AND 178E. .24 HOUR FORECAST TROUGH 07S176E TO 10S178E. .48 HOUR FORECAST TROUGH DISSIPATED. .E TO NE WINDS 20 TO 25 KT FROM 09S TO 20S E OF 124E. .24 HOUR FORECAST WINDS DECREASED 20 KT OR LESS. .SEAS 12 TO 17 FT S OF 21S BETWEEN 136W AND 148W. SEAS 8 TO 12 FT ELSEWHERE S OF A LINE 13S120W 18S136W 18S156W. SEAS 8 TO 9 FT S OF 24S W OF 164E. .24 HOUR FORECAST SEAS 12 TO 15 FT S OF 21S BETWEEN 133W AND 145W. SEAS 8 TO 12 FT ELSEWHERE S OF A LINE 08S120W 08S128W 17S128W 16S149W 25S160W. .48 HOUR FORECAST SEAS 8 TO 12 FT S OF A LINE 00S120W 16S150W. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS. .ISOLATED MODERATE TSTMS FROM 08S TO 12S BETWEEN 128W AND 133W. $$ .FORECASTER FOSTER. HONOLULU HI.