Update: High surf advisory canceled for portions of Kaua‘i

7:32 p.m. Feb. 19 update: High surf advisory for portions of Kaua‘i is canceled.

6:32 p.m. Feb. 17 update: A high surf advisory along east- and north-facing shores was extended till 6 a.m. Monday.

According to the National Weather Service in Honolulu, a north (340 to 360 degrees) swell will build tonight and peak early Sunday, producing surf well above advisory heights along north and exposed east-facing shores.

The swell will gradually decline late Sunday and Monday as it shifts out of north-northeast (360 to 020 degrees).

Surf is expected to be 8 to 12 feet tonight and decrease into Sunday.

7:51 a.m. Feb. 17 update: The high surf warning has been downgraded to an advisory.

According to the National Weather Service, the recent large northwest swell will continue to gradually diminish today, as it becomes increasingly northerly. 

A new north swell will arrive tonight and Sunday, driving another increase in surf heights along north-facing shores. Surf along west-facing shores will gradually decline through the weekend.

Peak surf heights will generally range from 16 to 24 feet through the weekend along north-facing shores of Ni‘ihau and Kaua‘i.

The advisory is expected to last till 6 p.m.

Original post: A high surf warning is in place for north- and west-facing shores of Kaua‘i and Ni‘ihau till 6 a.m. Saturday.

According to the National Weather Service in Honolulu, an extra-large northwest swell will continue to slowly diminish tonight through Saturday, with the possibility of coastal impacts and ocean water run-up tonight. Surf is expected to drop to advisory levels by Saturday morning.

North-facing shores can expect surf of 22 to 26 feet and 15 to 20 feet along west-facing shores.

Ocean water is expected to surge and sweep across beaches creating the potential for impacts to coastal properties and infrastructure, including roadways. Powerful longshore and rip currents will be present at most beaches.

Large breaking waves and strong currents may impact north-i or west-facing harbor entrances and channels causing challenging boat handling.