It's called cloud condensation nuclei or CCN, which can come in many forms, but last night's rain used dust particles from ...

COLUMBUS, Ohio — Many central Ohio residents woke up Saturday morning to find their vehicles covered in what appeared to be a layer of dust or dirt after rain moved through the area on Friday.

Central Ohioans who woke up to dirt on their cars this weekend weren't alone. Meteorologists have reported reporting that dirty rain has left a residue or coating on cars in Ohio, West Virginia ...