High Seas Forecast
Issued by NWS
Issued by NWS
186 FZPN40 PHFO 171047 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1100 UTC MON JUN 17 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC JUN 17 2024. 24 HOUR FORECAST VALID 0600 UTC JUN 18 2024. 48 HOUR FORECAST VALID 0600 UTC JUN 19 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 30N174E 26N169E 20N165E NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH. .24 HOUR FORECAST TROUGH LITTLE CHANGE. .48 HOUR FORECAST TROUGH 30N174E 26N166E. .WINDS 20 TO 25 KT FROM 07N TO 12N BETWEEN 146W AND 158W. .24 HOUR FORECAST WINDS DECREASED TO 20 KT OR LESS ENTIRE FORECAST AREA. .48 HOUR FORECAST WINDS 20 TO 25 KT IN AREA 27N158W 20N145W 08N146W 06N166W 12N174W 18N163W 27N158W. .OTHERWISE WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 FT OR LOWER ENTIRE FORECAST AREA. .ITCZ 09N140W 07N147W 08N151W 04N157W 05N170W 07N173W 07N177W 09N178E 06N160E. SCATTERED MODERATE TSTMS FROM ITCZ TO 01N BETWEEN 169W AND 168E. ISOLATED MODERATE TSTMS WITHIN 180 NM N OF ITCZ BETWEEN 169W AND 168E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF ITCZ ELSEWHERE. $$ .FORECASTER POWELL. HONOLULU HI.