A series of 11 ,completely silent, lights(objects) flying in a straight line.On my way home from work on 2/23/13 I noticed 2 orange or amber colored lights coming from the southwest flying over the lake which I lived on. I stopped on the road to look because the lights seemed to low to be a airplane. As I watched I noticed a 3rd and then a 4th light appear and so on. I thought maybe they were helicopters so I rolled down my window to listen but they were completely silent.They flew to the northeast and the first light disappeared into the cloud cover. By then a 5th light appeared. All the lights were evenly spaced and traveling at the same speed, which was to slow to be a aircraft other than a helicopter. If these lights were helicopters the blade chop from several would of been loud, but they were dead silent.As soon as one would go into the cloud cover, another would appear. I counted a total of 11 objects in all, they were spaced out enough that only a couple were ever viewable at one time.I was in the military and have seen just about every aircraft there is and I know of none that are silent and can fly slowly. Also I do not believe a helicopter pilot would fly above the cloud cover, specially in the dark.I was able to get a picture with my phone and you can clearly see 2 of the objects above the lake.((NUFORC Note: Witness indicates that the date of the sighting is approximate. PD))