This topic makes me think of this show:
Surviving Disaster
Hmm, as for examples... ice storm of 1998. Due to a lot of freezing rain weighing down power lines and trees, making the roads into ice rinks, and coating everything in a beautiful crystal, lots of people were without power, finding transportation hard to manage, etc. Some trees fell on houses or on power lines, and some power line
towers themselves toppled cutting off power. There were locations set up at like community centers and stuff for people who were without power to go to, where they had generators going and blankets and food to hand out. Some people were without power for weeks. Some mayors declared their areas in a state of emergency. And I think there were some fatalities too.
My area was okay (our power lines were underground), but we didn't go anywhere (too dangerous to travel on the icy roads), and the schools were closed anyways. But we had friends of our family stay with us since a tree fell on their power line (although, I feel bad for the man of the house - he went back to sleep in the frigid, powerless home every night to make sure no one would steal their stuff... there was a lot of that happening to other people).
Quebec was one of the places affected by the storm, and they got their power lines in shape after that. Despite also being affected by the storm, Ontario did not, and so it ended up suffering the Eastern blackout in the summer of 2003 along with a number of states on the same power grid.
...Not sure if this is what you were looking for, but I decided to tackle a type of natural disaster you might not have thought of.