Is it possible to climb the couloirs on Missouri's north face this time of year? Or is avy danger too high? If so, when would be a good month?

They would be very susceptible to avalanching in winter snow conditions, in fact a few weeks a go a group triggered a small slide even on the standard route's slopes, so I would hold off on Missouri until spring.

The north couloirs were in fine condition last May when we climbed them, I would say May-June is a good time.