High Seas Forecast
Issued by NWS
Issued by NWS
940 FZPN40 PHFO 151045 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1100 UTC SUN SEP 15 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 15 2024. 24 HOUR FORECAST VALID 0600 UTC SEP 16 2024. 48 HOUR FORECAST VALID 0600 UTC SEP 17 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 30N165W 25N166W MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN 150 NM E OF TROUGH. .24 HOUR FORECAST TROUGH 30N171W 26N173W. .48 HOUR FORECAST TROUGH DISSIPATED. .TROUGH 30N172E 25N172E MOVING W 15 KT. ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH. .24 HOUR FORECAST TROUGH DISSIPATED. .WINDS 20 TO 25 KT FROM 15N TO 10N BETWEEN 170W AND 153W...AND FROM 28N TO 20N BETWEEN 161W AND 149W. .24 HOUR FORECAST WINDS 20 TO 25 KT FROM 22N TO 12N E OF 152W. .48 HOUR FORECAST WINDS 20 TO 25 KT FROM 23N TO 10N E OF 163W. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 TO 10 FT FROM 17N TO 10N BETWEEN 166W AND 149W. .24 HOUR FORECAST SEAS 8 TO 9 FT FROM 19N TO 10N E OF 152W...AND FROM 16N TO 10N BETWEEN 171W AND 160W. .48 HOUR FORECAST SEAS 8 TO 10 FT FROM 20N TO 09N E OF 159W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .ITCZ 10N140W 09N144W 11N150W 09N163W 08N179E 08N164E. SCATTERED MODERATE TSTMS WITHIN 210 NM OF ITCZ W OF 149W. .ISOLATED MODERATE TSTMS FROM 20N TO 12N W OF 170E. $$ .FORECASTER TROTTER. HONOLULU HI.