Silver, cigar shaped object north of downtown Maryville, TN in or around 1991

Travelling home with my grandmother through the downtown area of Maryville, TN, I remember looking out of the window near sundown and seeing a silver, cigar shaped object moving through the clouds in a westerly direction.  It definitely had a solid form to it and reflected the sunlight slightly with the clouds around having a orangish sunset coloration while the object was silver but did reflect some tinge of the same orangish color.  It moved in and out of the clouds very slowly.  It is a very distinct memory in my mind.  I cannot remember exactly how long it was there but definitely seemed fairly large due to the distance away and was definitely not a blimp to my recollection.  I also cannot remember it leaving the area specifically and I do not believe my grandmother spotted it as I cannot remember talking with her specifically about it.
Witness indicates that the date of the sighting is approximate.  PD