Today I decided to explore the ridge south of Berwick, PA. It was around 8 AM, the wind was from the south-southwest at around 18 knots. I found some surprise lift on the DOWNwind side of the ridge, above I-80. Clouds were forming over the ridge, dipping down and disappearing, then re-forming in a line to the north. They disappeared again and formed an additional line even further north but the best lift was between the first and second line of clouds. (You can see the three lines of clouds in the video thumbnail image which form the tops of the ripples where the air reaches the water condensation level.) I had read about wave lift before but never encountered it until now. I had always believed this phenomenon only occurred around really tall mountain ranges but I saw it happening right here at home! It was really exciting because I was able to soar with my engine completely turned off for close to an hour and maintain altitude around 2500 FT MSL only 3 miles from my house. I love this sport! Wave lift is similar to surfing the downstream ripples formed by water flowing over an object in river rapids. In this case the air flow over a ridge oscillates up and down a couple of times before settling out. If you have a glider you can ride one of the downstream ripples without using an engine for thrust. Sorry for the bad audio, I didn't have the GoPro and Sena Bluetooth audio pack up this time, just used my cell phone to capture the moment.