Surf up to 25 feet could be in the cards this evening as weather officials expect a reinforcing north-northeast swell to join the current large swell pounding all islands.

A high surf advisory is in effect until 6 p.m. today, when a high surf warning is scheduled to take effect through Wednesday. Affected areas include the north and east shores of Kauai County, Oahu, Maui, Molokai and Hawaii island.

Wave heights along north-facing shores are expected to hit 15 to 20 feet today, rising to 20 to 25 feet tonight. East-facing shores should see 6- to 10-foot surf today, rising to 10 to 15 feet tonight, according to National Weather Service officials.

“Waves may wash onto coastal roads, especially around high tide early Wednesday morning,” weather officials said in an advisory.