High surf advisory tonight through 6 a.m. Tuesday for north shores of Kauaʻi, Niʻihau

The National Weather Service is issuing a high surf advisory for north-facing shores of Kauaʻi and Niʻihau, beginning Sunday at midnight and lasting until 6 a.m. Tuesday.

A moderate to large north-northeast swell is expected to fill in late tonight through Monday increasing surf heights to 14 to 18 feet.

North-facing shores of Maui, Molokaʻi, Oʻahu and the Big Island also are part of the high surf advisory.

Strong breaking waves and strong currents will make swimming dangerous. Heed all advice from ocean safety officials. When in doubt, don’t go out.