(BIVN) – The National Weather Service has issued a High Surf Warning for north-facing shores of Hawaiʻi Island, as well as a High Surf Advisory for east-facing shores.

A large north-northwest swell will peak today, forecasters say, producing dangerously high surf along exposed north shores, with the potential for localized coastal inundation with the high tide this morning. Along east facing shores, rough and choppy surf is expected for most of the next week as strong trade winds will persist.

According to the National Weather Service, surf heights could reach up to 20 to 30 feet along north facing shores of Oahu, Maui and the Big Island.

A Marine Weather Statement also warns of moderate surges in exposed harbors today, namely in Kahului and Hilo harbors.

The north-northwest swell will peak today, then slowly lower tonight and Monday, forecasters say.

A Wind Advisory also remains in effect for parts of Hawaiʻi Island.