In our blog released Monday, we reported that Calgary was expecting 5 cm (2 in) of snow. Nobody was expecting quite what happened though. City crews will be dealing with downed trees for potentially several months. The city has seen snow in September before, even in August, but never a disaster like this. Snowfall on this scale is more typical of January, and even in the worst winters, I have never seen or heard of thousands of downed trees here. The downed trees affected the electrical grid, leaving 30,000 people with no electricity on what turned out to be an unexpectedly cold night. Falling trees and branches resulted in injuries on the Southern Alberta Institute of Technology campus. School officials there warned staff and students not to walk near any standing trees, as the combined weight of the snow and their leaves caused them to collapse. There is no estimate yet on the economic toll of this disaster, but we will keep you posted. These are some pictures of the storm as it happened. Pictures of some downed trees will follow in your regularly scheduled blog.