Illuminated Sphere Object moving silently and disappeared

June 13, 2021 At 8:51 pm in Ford Washington, my sister called me (50 yards away) telling me to run outside “it” is moving towards Springdale/loon lake direction.  My sister indicated she was able to get some video before she called me and my brother to go see it.  The sky was clear, there was an illuminated object moving north, approximately 10,000 ft up.  It was silent, appeared to be lightly inclining.  I watched it as it was heading towards a line of overcast thin cloud line.  I knew that IF the object entered the over cast cloud line that I would still be able to see it as it was Extremely Bright and the cloud line was thin.  As it appeared that the object was going to enter the cloud line..It just vanished.  My brother and his son, standing next to me also witnessed this event. I asked my brother “Did you see it enter the over cast cloud line”?  He said, “No, it disappeared before it entered it.” This objects illumination was like white fire, I have never seen anything in the sky illuminated like this object.