Minor Expected Likely High Surf Advisory High Surf Advisory issued July 22 at 4:05PM HST until July 24 at 6:00AM HST by NWS Honolulu HI Jul 23, 6:00 AM → Jul 24, 6:00 AM ...HIGH SURF ADVISORY FOR SOUTH FACING SHORES THROUGH THURSDAYNIGHT....Forerunners from a moderate, long-period south swell are alreadyreaching Hawaii this afternoon. The swell builds tonight intoThursday, with surf increasing to advisory level along south-facing shores sometime on Thursday. Thursday night into Friday,the swell may peak near warning level. Long-period south swellenergy will keep surf elevated beyond Friday, which may requirethe advisory to be extended through the weekend. WHAT: Surf 8 to 12 ft. WHERE: South facing shores of all Hawaiian Islands. WHEN: From 6 AM Thursday to 6 AM HST Friday. IMPACTS: Moderate. Strong breaking waves and strong currentswill make swimming dangerous. + Read More Heed all advice from ocean safety officials. When in doubt, don't go out. Updated: Jul 23, 12:10 AM Source: NWS Alert