High Seas Forecast
Issued by NWS
Issued by NWS
472 FZPN40 PHFO 181017 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1100 UTC WED SEP 18 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 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 18 2024. 24 HOUR FORECAST VALID 0600 UTC SEP 19 2024. 48 HOUR FORECAST VALID 0600 UTC SEP 20 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WINDS 20 TO 25 KT FROM 12N TO 19N BETWEEN E OF 167W...AND N OF 24N BETWEEN 163W AND 154W. .24 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE 30N171W 25N162W 26N160W 30N164W. .48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 TO 9 FT FROM 11N TO 17N BETWEEN 168W AND 143W. .24 HOUR FORECAST SEAS 8 TO 9 FT FROM 12N TO 15N BETWEEN 172W AND 166W. .48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .ITCZ 09N140W 08N145W 10N159W 07N178W 07N175E 10N165E. SCATTERED MODERATE TO STRONG TSTMS WITHIN 210 NM OF ITCZ. .ISOLATED MODERATE TSTMS FROM 10N TO 15N BETWEEN 175E AND 179W. $$ .FORECASTER PIERCE. HONOLULU HI.