The emergency officials from Washington and Oregon reported that they have found presence of a very strange milky ash substance in the rainfall. According to experts, the origin of the substance is yet unclear. According to the reports of the National Weather Service, the dirty rain has been confirmed in over 15 cities.
The weather service’s Spokane office has gathered water samples and these samples will be tested in a lab. Vehicles and windows also got covered with the light grey dirt because of a rainstorm that originated in Pacific moved in.