The first snow that I had the car and all of it was INSIDE my car. Not because there was a hole in my roof but rather my sunroof/moonroof leaked - to the extent that the water that leaked inside turned into ice. And it continued to happen, every time it snowed or rained, it may be just fine when it was sitting still but if I started to drive forget it. I was soaked. I carried towels in my car all the time and it had nothing to do with a clog.