Three metallic circles saw on the western horizon.

The date is probably not accurate but the same night there was a major wire story about fireballs seen over Buffalo N.Y..  Everyone in my family saw three circular objects which were equidistant from each other travelling from south to north along the western horizon.  They looked like metallic plates on edge covered with wisps of fire.  They were moving slowly enough that, when my father saw them, he was able to call all of us from various rooms to see the sight.  We were looking out a window and didn't hear any noise.
Date is approximate.  PD