I just saw the same exact thing happen twice within five minutes while sitting in my backyard.
We were near Cleveland, OH. A large, dark orange plume rose quickly from the ground about fifteen to twenty miles away, by my estimation. The outer layer of the object seemed to dissipate, while its core hovered from left to right in the sky for minutes.
Then, the remaining object shot quickly into the sky and soon disappeared into the night sky. First instinct, of course, was to blame fireworks. But the length of time it hovered, coupled with the heights it achieved upon "taking off" made it very strange.
By the way, this event occurred twice the same evening, both within the same hour to hour and a half. Apologies for the delayed response. I rarely check this account. I will do so more often, as I'm interested in similar occurrences.