(BIVN) – The large, pounding surf that closed Keaukaha beaches is lingering on Black Friday, however weather forecasters say it should slowly drop to advisory levels later this evening.

For now, a High Surf Warning remains in effect for north and east facing shores of Hawaii Island.

Surf heights are expected to be 20 to 25 feet along north facing shores and 10 to 15 feet along east facing shores of the Big Island.

The high surf closed all Keaukaha-area beach parks on Thanksgiving Day, also forced the closure of Hilo Bayfront Highway.

A Special Marine Weather statement has also been issued by the National Weather Service for north-facing harbors:

A very large north swell will continue to impact the coastal waters. The swell, and strong northeast winds will combine to produce large breaking waves in north facing harbor entrances and may cause harbor surges. Haleiwa boat harbor… Hilo harbor and Kahului harbor are likely to be affected. Mariners using these harbors should exercise caution when entering or leaving port and when mooring or launching vessels. The swell is expected to slowly subside through Saturday.

High surf at Onekahakaha Beach Park.