As if erupting volcanos aren't impressive enough.
It has to go a step further and through several not yet fully understood processes builds up enough of a static charge to send lighting surging through the plume.
@CriticalCupcake That looks incredible!
@CriticalCupcake You know what this means? Frodo has succeeded! The ring has been destroyed! SEND IN THE EAGLES!
@CriticalCupcake Mt St Helen’s didn’t have lava shooting out in 1980, but the ash cloud did produce some lightning.