Going up the mountain was surprisingly fine. I even had taken off both my jackets and was just wearing thermals as the heat I was generating working to go uphill was enough to keep me comfortable.
Unfortunately when we reached the top, we also ended up directly in the wind with no available cover. Within the ten minutes it took to put my jackets back on and transition to go downhill, I was nearly hypothermic. I couldn’t even operate my fingers enough to bring the idiot-proof magnetic clasp on my helmet together. The whole group was on the verge of panic to get off the top of that ridge. If we’d stayed there five more minutes, I’m not confident we would have made it back home that day.
I can’t fully express how obscenely, unconscionably, and incomparably cold that was. I have never felt anything like it and I hope never to again.