Hilleberg Aktos seem pretty popular nowadays, and I've seen them in some interesting locations that suggests they are up to the task but they are at the pricey end of the market. Can't vouch for them personally but all the Hilleberg kit I have used (not owned) has been well made and designed.
One I can recommend is Macpac's Microlight- mine has seen me through some pretty atrocious conditions. It's still made (as far as I know), the design has been the same throughout the last couple of decades, and although not the lightest nor the most spacious, it can survive pretty decent heaps of snow, very exposed windy pitches and has a small enough footprint to fit onto limited areas that many summit camps (or similar- rocky islets, exposed ridges etc) entail. It's also dead simple to pitch for one person in difficult conditions, which is a major bonus- If you can't pitch it 'cause the wind is too bad then it's not going to do you much good in your pack. Nowadays there are lighter tents with better porches and more space, but I doubt many can be as strong in full on storm conditions.
 nice threads recently on your west coast sojourn btw.