Possibly coolest weather thing i've seen.

[old.Tohtori]

Punch holes

"Recently meteorologists have penetrated the mystery: punch holes form when airplanes fly through thin layers of high altitude clouds. If water droplets in the cloud are supercooled (below freezing but still liquid), they can suddenly turn to snow when shocked by the passage of the plane. This mini-snowstorm occurs over a circular area much wider than the airplane itself."

 

[leviathane]

never seen/heard of these before.

 

[Jimmy]

that is very cool as well as some brilliant pics

 

[CorNokZ]

Nice one. Another weather phenomenon which has fascinated me are the red sprites and blue jets

YouTube - "Red Sprites & Blue Jets" - the video

 

[old.Tohtori]

Funny how that first red sprite almost looked it had a skull inside