I went up Mount Whitney last week, 25lbs with bear can and food and 2-3l of water. Weather was great on way up until late afternoon! Yes the forecast told us it would cool down and get windy....
And it did! Overnight, frozen water bladders, 70mph gusts and 28 degrees in our Rainshadow2. The head end (not door) was as close to a rock face I could find and we built up a mini wall as best we could. The stay line was attached to a 9" peg that was then further held down with approx 15lb of rock. Along the edge of the tarptent is netting however we placed 10lb rocks ALL along the longest edges - adding around 100lb each side. At the front, the usual 'two vertical sticks' were replaced with a 'V' formation, low, and the base thereof supported by more rocks.
We thought we were ready! I had a #3 (30deg)bag, elasticated type, room to move, on a Neoair, wearing wool bottoms and reg pants, socks and my windproof jacket, hat.
The wind blew the rocks off(billowing pressure from inside i guess forced them off), the sticks blew over and I ended up trying to cinch down the beak area as best i could with no stick support. When the wind blew, it pushed the tent fabric onto our bags, and blew hard! The top of the climb registered 100mph and 18 deg. I got cold legs and feet, body was fine. I had the footbox completely closed and remained in the upper area completely.
Clearly this isnt every day camping! what would have been a better setup for warmth and shelter? Would a different tent been better? Would a thicker bag made a difference?