Atmospheric rivers, high winds, rain, snow, and potential flooding are expected Christmas week which could complicate holiday travel plans for thousands of Oregonians. The West Coast is gearing up for a soggy, blustery Christmas as a series of atmospheric rivers takes aim at Washington, Oregon, and Northern California. Over Christmas week the Pacific Northwest can expect heavy rain, mountain snow, and strong winds to make their presence felt, just in time to complicate holiday travel plans.