Definition of reservoir. 1 : a place where something is kept in store: such asa : an artificial lake where water is collected and kept in quantity for useb : a part of an apparatus in which a liquid is heldc : supply, store a large reservoir of educated people.
Four types of winter precipitation. While all forms of precipitation start as snow high up in the clouds, there are four primary types that eventually reach the ground: snow, sleet, freezing rain and plain ol' rain. Snow occurs when the atmosphere is cold all the way from the clouds to down here at the surface.
But what is the difference between the two? First off, both need cold air to form, usually right around the freezing mark of 32 degrees or cooler. Freezing rain is usually plain rain that falls as a liquid and freezes on contact, usually on surfaces such as roadways and sidewalks.