Offshores, AKA - Santa Ana Winds are created when a ridge of High Pressure settles in the Great Basin behind California. The stronger the pressure, the stronger the winds and the duration. These winds travel and flow through the basin, funneling between the inland mountains and valleys to finally reach the Coastline. The winds groom the ocean surface. And when there's waves in the water the wind blows up the face of the wave turning them into perfect hollow barrels.
Accompanied by Stiff, Freezing Offshore WInds.