In 2004 I was scouting for a 3rd season tag and was about 8 to 11 miles in and I glassed up a women and her friend who were out hiking, they only had shorts, Tee shirts and water bottles. It was 10.30 am partly cloudy and 70 degrees.
On my way out I used the trail to head back to the truck since its faster, but It had started snowing hard and the wind picked up to about 25/30 MPH and it was getting late. Those two were freezing but they made it back to their car, I thought I was going to half to give them my bivy sack.
I never leave truck without everything I need to spend the night on the mountain.