What caused Mysterious 'Milky Rain' on Cars in the Northwest US

This weekend, emergency officials from Washington and Oregon have reported the presence of a milky white, ashy substance. Obviously, there are live volcanoes nearby but officials believe that this foreign substance must be coming from thousands of miles away or might be remnants left behind in the atmosphere from a nearby wildfire; or even just dust kicked up from a nearby storm in the recent past. Walla Walla Country Emergency officials declared this week, “We have received reports of ‘white stuff’ on vehicles. The ash is more than likely from the Volcano Shiveluch. “