Bright, white strobe light on deserted highway.My sister and I were travelling from Vancouver to Kimberly. It was about 1am when we reached Windermere. A few miles south from there we saw a bright strobe light above some trees. We thought it was a beacon of some kind, but we noticed that it took a long time to reach it and finally pass it. It was almost in the trees and the road travelled in a way that we could not see it when we passed it. A few moments later we saw another bright, white strobe light just above the trees quite a bit further down the road. At one point I could see it flashing just above a house. We were getting closer now and we finally realized it was moving. There were no marker lights, no spotlight and we were in a bit of a thunder and lightning storm so I really do not think it was any kind of legitimate aircraft. This second light stayed with us for a minute or so travelling at our speed just above the trees about 50 feet to our left. It stopped "following" us just before the next small town. When we reached Fairmont, we stopped and I could still see it flashing in the distance. We continued on, quite scared now. We crossed a small bridge and I saw another one on my right but it was stationary. Then as we travelled alongside Columbia Lake we saw another one. This one was on the other side of the lake, but it stayed with us for a few minutes. When we reached Canal Flats, it stopped, and when we looked back there were two hovering over the town. We were frightened and continued on our way.This road was quite deserted, but there were probably thirty other vehicles that must have seen something. We sure won't be the same.