Get ready to shred some serious gnar-nage, brosef.

Eureka’s National Weather Service office reports that 10 to 20-foot waves will hit Humboldt’s shoreline this weekend.

“Relatively tranquil marine conditions occurring during midweek will transition to hazardous conditions this weekend,” the NWS wrote on Facebook. “Gale-force northerly winds appear probable Saturday night into Monday.”

The NWS warns that steep, choppy seas may make for hazardous boating conditions this weekend.

You’ve been warned.