Those train surfers in your previous post are crazy - on YouTube I filed it into my wingnuts playlist.
Working for the railroad in Canada I was once in the position of having to walk over the roofs of our cars as our train was stuck on the High Level Bridge because of deep snowdrifts at the yard entrance. The engineer just shut it down, climbed off the unit and went home. The conductor and I were on the caboose on the end, on the middle of the bridge, which is over 96 meters high. We did not want to stay there, and fortunately our train consisted of just high boxcars, so we decided to walk over those cars to get off the bridge. It is a trestle bridge, only as wide as the tracks, so there is no walkway on the bridge itself.
oh what a train ride, not the best place to get stuck.
I forgot to mention that Lethbridge is also the windiest city in Canada. In Vienna you get a wind warning when it blows more than 25 kmh - in Lethbridge it happens often to get 80 kmh at times. That is why you get these gigantic snow drifts while other areas are bare. It has to do with the nearby Rockies, which creates a strong turbulence, particularly in Spring (Chinook - in German it is a very strong Föhn). Yes, it warms things up (but Wikipedia generalizes), but it does not last long enough to melt snow, if the prior temperature was -30° - so it might get up to 0° for a bit, enough to pile up the snow (in our case) without really melting much. I remember having to get down on hands and knees a few times when a gust hit, and hold on to the running board. Fortunately it was not as strong of a wind anymore that day.