Very bright light moving from South to North, stopped car and stood in middle of road watching huge craft appear.

Driving on Highway 100, I spotted a bright light on my right.  The light was very bright and was going to cross the road in front of me.  
Immediately stopped my car and waited.  The craft cleared the trees.  This craft was the shape of a CH 47 Chinook helicopter.  The color was olive drab and approximately 20 times the size of an army craft.  No sound and moved (floated) like the craft in a sci-fi movie.  The tail section had three levels of windows, one above the other and lit up, could see inside, nothing but walls.  No rotors, red light on belly of craft. 
Now, standing in the middle of the road, I was going to wave if I saw someone or something.  
Craft headed  to the N.W. and disappeared.
Source of report indicates that the date of the sighting is approximate.  PD