High Seas Forecast
Issued by NWS
Issued by NWS
862 FZPN40 PHFO 161037 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1100 UTC MON SEP 16 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 OCTOBER 16 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 NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 0600 UTC SEP 16 2024. 24 HOUR FORECAST VALID 0600 UTC SEP 17 2024. 48 HOUR FORECAST VALID 0600 UTC SEP 18 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 30N171W 24N172W MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH. .24 HOUR FORECAST TROUGH DISSIPATED. .TROUGH 30N166E 24N166E MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN 210 NM E OF TROUGH. .24 HOUR FORECAST TROUGH DISSIPATED. .24 HOUR FORECAST NEW TROUGH 20N163E 14N160E. .48 HOUR FORECAST TROUGH MOVED W OF AREA. .WINDS 20 TO 25 KT FROM 20N TO 10N E OF 154W...AND S OF 07N E OF 153W. .24 HOUR FORECAST WINDS 20 TO 25 KT FROM 21N TO 11N E OF 162W. .48 HOUR FORECAST WINDS 20 TO 25 KT FROM 16N TO 11N E OF 171W. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 TO 10 FT FROM 16N TO 10N BETWEEN 172W AND 164W. SEAS 8 TO 9 FT FROM 20N TO 02N E OF 153W. .24 HOUR FORECAST SEAS 8 TO 10 FT FROM 20N TO 03N BETWEEN 158W AND 142W. SEAS 8 TO 9 FT FROM 15N TO 11N BETWEEN 177W AND 171W. .48 HOUR FORECAST SEAS 8 TO 10 FT FROM 18N TO 10N E OF 165W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .ITCZ 11N140W 11N153W 10N161W 10N168W 08N179E 09N168E. SCATTERED MODERATE TSTMS WITHIN 210 NM OF ITCZ E OF 175W. ISOLATED MODERATE TSTMS WITHIN 150 NM OF ITCZ W OF 176W. .ISOLATED MODERATE TSTMS FROM 25N TO 18N BETWEEN 170E AND 177W... FROM 20N TO 13N W OF 169E...AND FROM 16N TO 11N BETWEEN 174E AND 179W. $$ .FORECASTER TROTTER. HONOLULU HI.