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High Seas Forecast
Issued by NWS
Issued by NWS
514 FZPN40 PHFO 162241 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2300 UTC TUE JUL 16 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 JULY 29 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 1800 UTC JUL 16 2024. 24 HOUR FORECAST VALID 1800 UTC JUL 17 2024. 48 HOUR FORECAST VALID 1800 UTC JUL 18 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 13N140W 10N143W 07N148W MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN 60 NM OF TROUGH. .24 HOUR FORECAST TROUGH 13N143W 09N153W. .48 HOUR FORECAST TROUGH 13N150W 09N160W. .24 HOUR FORECAST NEW TROUGH 30N149W 28N158W. .48 HOUR FORECAST TROUGH 30N146W 28N154W. .WINDS 20 TO 25 KT FROM 07N TO 21N W OF 154W. .24 HOUR FORECAST WINDS 20 TO 25 KT FROM 08N TO 16N BETWEEN 161W AND 171E. .48 HOUR FORECAST WINDS DECREASED TO 20 KT OR LESS ENTIRE FORECAST AREA. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 TO 10 FT N OF LINE 00N176E 18N160E AND W OF LINE 00N170W 15N151W 25N160E. .24 HOUR FORECAST SEAS 8 TO 10 FT FROM 01N TO 18N BETWEEN 160W AND 169E. .48 HOUR FORECAST SEAS 8 TO 9 FT FROM 09N TO 15N BETWEEN 167W AND 174E. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .ITCZ 09N150W 07N162W 06N180E 05N169E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF ITCZ. .SCATTERED MODERATE TSTMS S OF 14S AND W OF 169E. ISOLATED MODERATE TSTMS N OF 28N BETWEEN 175E AND 179E. $$ .FORECASTER POWELL. HONOLULU HI.