Can Force Lightning be projected from a distant source (such as the sky or a charged object) rather than from a Sith's body?
If possible, this could potentially (EE pun intended) make it more difficult for a Jedi to defend against since the Jedi could be attacked from above or behind. However, I can't recall a situation where this was done so perhaps it is not possible.
Note: Canon and Legends examples are both acceptable, though I prefer answers which do not cite a video game because the projection could be a game mechanic (or limitation) rather than a true use of a distant source. For example, this screenshot from KOTOR II shows Force Storm, which arcs above the enemies' heads (perhaps as a way for the game to show the lightning hitting multiple enemies) but is projected from the player character's hand:
I will upvote any answer which provides an example (even if from a video game) but I will accept the answer with the most canonical example (unless, of course, there are no examples).