In a recent snowstorm, we got about a foot of fluffy snow before the weather changed over to sleet/freezing rain. The rain soaked into the upper few inches of the snow. And then the temperature dropped below freezing again. When I went to clear the driveway with the snowblower, I noticed a really interesting phenomenon that I hadn’t seen before.
At the edges of the driveway, the top rain-soaked layer of snow had solidified enough that it cracked off from the more level sections of snow and slid off the snowbank as a couple of sheets. It was just like a mini-avalanche. (You can click to enlarge the photos, to better see what’s going on.) Cool!