High Seas Forecast
Issued by NWS
Issued by NWS
845 FZPN40 PHFO 290332 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0500 UTC MON APR 29 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC APR 29 2024. 24 HOUR FORECAST VALID 0000 UTC APR 30 2024. 48 HOUR FORECAST VALID 0000 UTC MAY 01 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WEAK FRONT 30N163W 24N169W THENCE TROUGH TO 21N175W 20N178E. FRONT MOVING E SLOWLY AND TROUGH NEARLY STATIONARY. SEE WINDS BELOW. SCATTERED MODERATE TO STRONG TSTMS WITHIN 90 NM E OF FRONT N OF 27N. .24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N162W 24N166W 21N175W. .48 HOUR FORECAST TROUGH 30160W 21N169W. .TROUGH 24N167E 18N166E NEARLY STATIONARY. .24 HOUR FORECAST TROUGH LITTLE CHANGE. .48 HOUR FORECAST TROUGH DISSIPATED. .FRONT JUST W OF FORECAST AREA NEAR 30N158E MOVING E 20 KT. SEE WINDS BELOW. ISOLATED MODERATE TSTMS N OF 29N W OF 163E. .24 HOUR FORECAST FRONT 30N168E 27N160E. .48 HOUR FORECAST WEAKENING FRONT 30N175E 27N167E 29N160E. .WINDS 20 TO 25 KT N OF 05N AND S OF LINE 05N170W 20N155W 25N140W. WINDS 20 TO 25 KT N OF 27N BETWEEN 165W AND 159W...AND N OF 29N W OF 163E. .24 HOUR FORECAST WINDS 20 TO 25 KT N OF 05N AND S OF LINE 05N171W 20N150W 26N140W. .48 HOUR FORECAST WINDS 20 TO 25 KT N OF 05N AND S OF LINE 10N160E 15N160W 23N140W. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 8 TO 10 FT N OF 03N AND S OF LINE 03N177W 19N158W 22N140W. .24 HOUR FORECAST SEAS 8 TO 10 FT IN AREA 06N140W 02N151W 09N175W 19N155W 22N140W. .48 HOUR FORECAST SEAS 8 TO 10 FT N OF 04N AND S OF LINE 04N171E 16N160W 22N145W 22N140W. .SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA. .ITCZ 07N140W 03N155W 01N167W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF ITCZ E OF 155W. .ISOLATED MODERATE TSTMS S OF 08S W OF 174E AND FROM 05N TO 10N BETWEEN 174E AND 168W. $$ .FORECASTER POWELL. HONOLULU HI.