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.
All three involve precipitation in the clouds, but each requires just the right set of circumstances to occur. One difference between sleet and hail is the time of year in which each occurs. Typically, hail is most often a summer occurrence, while sleet occurs mostly in winter. Youâre much more likely to see hail in warm and oppressive weather where a sudden thunderstorm occurs.
There are two easy facts to differentiate between hail and sleet: time of year and size. Using these essentials, it is easy to identify what kind of frozen precipitation is falling. Hail: Hail occurs during severe weather. Hail is the formed when an object, including dust or particles in the air, collides with supercooled water.