A high-surf advisory remains in effect today for the north and west shores of Kaua'i, Ni'ihau, O'ahu, Moloka'i and Maui and the west-facing shores of the Big Island.

The National Weather Service said the large northwest swell will continue through today and taper off this evening. The advisory is in effect until 6 p.m.

Surf along northern shores will be 18 feet to 22 feet this morning before lowering to near 15 feet this afternoon. Surf along west-facing shores will be 7 feet to 13 feet this morning and lower to 4 feet to 8 feet this afternoon, the National Weather Service said.

Surf along the west-facing shores of the Big Island will be 6 feet to 8 feet through today.

Elsewhere, surf will be 3 to 5 feet along east shores and 1 foot to 2 feet in town along south shores.

Two more hurricane-force lows will again produce surf near or above the 25-foot warning level on north-facing shores on Tuesday and Thursday, the Weather Service said.