A couple weekends ago, I took a Boy Scout troop out on a weekend overnight up near Cle Elum Lake to make snow shelters. The snow level was at 8,000 feet, we were around 2,200 feet, so it was a bit warmer than expected. Still, we were on the snow, trudging up the trail on snowshoes.
Then, it started to rain. A lot. Over well over 4 inches in the 24 hour period we were there.
Fortunately, I had some good rain gear. Most important, my JakPak. No leaks, no sweating through.
The JakPak is a coat, and a bivy sack, too.
I think I'll be bringing this piece of gear on more trips!