High Seas Forecast
Issued by NWS
Issued by NWS
763 FZPN40 PHFO 111438 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1700 UTC SAT MAY 11 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W 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. .LOW 04N171E 1010 MB MOVING W SLOWLY. TROUGH 04N160E 06N166E TO LOW. SCATTERED MODERATE TSTMS WITHIN 210 NM OF LOW. .24 HOUR FORECAST LOW 04N171E 1009 MB. WINDS 20 TO 25 KT WITHIN 60 NM N SEMICIRCLE. .48 HOUR FORECAST LOW 02N167E 1009 MB. WINDS DECREASED TO 20 KT OR LESS. .TROUGH 30N154W 22N156W 15N157W MOVING S SLOWLY. WINDS 20 TO 30 KT N OF 20N BETWEEN 170W AND 150W. SCATTERED MODERATE TO LOCALLY STRONG TSTMS FROM 17N TO 25N BETWEEN 158W AND 148W. .24 HOUR FORECAST TROUGH 25N155W 18N158W. WINDS 20 TO 25 KT N OF 20N BETWEEN 170W AND 150W...AND FROM 15N TO 20N BETWEEN 155W AND 145W. .48 HOUR FORECAST TROUGH 25N153W 21N163W 18N164W. WINDS 20 TO 25 KT FROM 05N TO 15N E OF 155W. .FRONT NEAR 30N163E 27N160E MOVING E 15 KT. .24 HOUR FORECAST WEAK FRONT 30N170E 20N160E. NE WINDS 20 TO 25 KT N OF FRONT. .48 HOUR FORECAST WEAK FRONT 30N175E 23N160E. WINDS 20 TO 25 KT N OF 08N W OF 180W. .TROUGH 28N170E 22N170E MOVING W SLOWLY. .24 HOUR FORECAST TROUGH ABSORBED BY FRONT MENTIONED ABOVE. .WINDS 20 TO 25 KT FROM 05N TO 25N BETWEEN 175E AND 170W. .24 HOUR FORECAST WINDS DIMINISHING TO 20 KT OR LESS. .OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 8 TO 10 FT N OF 20N BETWEEN 180W AND 155W. .24 HOUR FORECAST SEAS 8 TO 10 FT N OF 20N BETWEEN 170W AND 155W. .48 HOUR FORECAST SEAS 8 TO 10 FT N OF 25N BETWEEN 165W AND 155W...AND N OF 25N W OF 170E. .OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. .ITCZ 05N175E 03N180W 05N175W 05N160W 07N155W 07N145W 05N140W. SCATTERED MODERATE TO LOCALLY STRONG TSTMS WITHIN 210 NM OF ITCZ E OF 160W AND W OF 180W. $$ .FORECASTER PECHACEK. HONOLULU HI.