Ran the WSM today under adverse conditions...temps in the low to mid 40's, strong north winds and occasional snow (yes, May 1 in Minnesota!). Thanks to the 3 panel plywood wind shield I built (great idea found on TVWB site!), the WSM maintained the perfect 250 lid temp for 4 hours for ribs. I had a beer can chicken going on my Weber Silver B gasser and that struggled to hold 350 due to the weather. Once again, the WSM delivered great results!