Might not be the exact answer your looking for here but this was my experience a couple years ago in Colorado during third rifle season. We had a wet snow was coming down on us and instead of stopping and taking the two minutes to put on rain gear like my friend did, I kept proceeding up without it on, stupid mistake, very stupid. By the time we had camp setup and were getting settled in for the night I was getting cold and not really warming up in my sleeping bag, it’s a synthetic 30 degree Big Agnes. I swear I felt a draft coming through the bag. Starting a big, happy fire crossed my mind but I decided to slide my sleeping bag into my SOL bivy since it was the last resort and piece of gear I had to use before getting out and dealing with getting a fire going. It worked very well, within 40ish minutes my pants were dry to the touch and my jacket was not far behind. There were also small amounts of water pooled up on the outside of my sleeping bag when I opened up the bivy and it eventually dried out. If I recall right, I had wool base layers and socks, Firstlite corrugate pants and my upper layer was a kiln under a uncompahgre jacket.