Aloha, wave riders! Get ready for a gnarly weekend of surf in Hawaii with some serious north and west swells rolling in.

Tonight and early Saturday, north and west facing shores are looking at epic 15 to 20 foot surf - that's massive wave action that'll have experienced surfers stoked and newcomers watching from the beach. A High Surf Advisory is active for Niihau, Kauai, Oahu, Molokai, Maui's north shores, and the Big Island's west facing coastlines.

This swell is courtesy of a large west-northwest system that's peaking right now and will gradually decrease through Saturday afternoon. By evening, expect surf heights to drop to a still respectable 12 to 16 feet on north facing shores.

But wait, there's more! A deep low pressure system near Kamchatka Peninsula is brewing another monster swell. Forerunners will start arriving Sunday night, with the main event building Monday night and holding strong through Tuesday. Long period west-northwest waves are on the menu, so keep those boards waxed and ready.

Wind conditions look mellow - east winds hovering around 5 to 10 mph, occasionally shifting. Temperatures will be classic Hawaiian - upper 60s overnight and lower 80s during the day. Expect some scattered showers and hazy conditions to add a bit of tropical atmosphere.

South and east facing shores will see smaller 1 to 5 foot waves, perfect for casual swimmers and beginner surfers.

Rip currents will be aggressive, so remember - if in doubt, don't go out! Stay safe, respect the ocean, and enjoy the spectacular Hawaiian surf scene.

Surf's up!

This content was created in partnership and with the help of Artificial Intelligence AI