Heavy Snow in Eastern Columbia River Gorge, Washington

A Cocorahs observer in White Salmon, WA measured 10.5 inches of new snow at 0830 PDT.

An upper trough pushed several low pressure systems across the Pacific Northwest in the middle of April. The trough allowed for a much colder than normal air mass to settle into portions of eastern Washington and Oregon, allowing snow levels to drop to the surface across a majority of these areas. This ultimately resulted in snow accumulations in the mountains and lower elevations, with significant snow accumulations being observed in some mountain zones.