SPOKANE — Scientists at Washington State University on Tuesday said they have solved the mystery of dirty rain that fell on portions of the Pacific Northwest in February.
The milky rain on Feb. 6 was the result of a rare weather pattern that began nearly 500 miles away near a dry Oregon lake bed, meteorologist Nic Loyd said. A meshing of weather systems ultimately caused dirty-white-colored raindrops to fall in parts of Washington, Oregon and Idaho.
The high sodium content of the rain, combined with an analysis of wind patterns during that time, point to a severe dust storm that whipped up sand and soil at Oregon’s remote Summer Lake, the scientists said.
The particles were carried north by strong winds and then dragged down by a rainstorm over parts of the three states.