Thunder-snow
Thundersnow
Thundersnow is an event in which thunder and lightning occur in a snowstorm. Most thundersnow events develop when ordinary flat, layered snow clouds develop upward bumos or turrets.
A weather reporter, Jim Cantore from massachusetts witnessed thundersnow. He reported live from the scene in Boston February 15, 2015. He got so excited about it because its not something that occurs on a daily basis.