Nature Unleashed: Avalanche is one of those films that you can occasionally see playing on the Syfy channel at around 2 AM, rounding out another marathon of disaster (both figuratively and literally) movies. If you have trouble sleeping at night, and happen to be up whenever this flick is playing, give it a watch, and I can almost guarantee that you'll soon be out for the night.
Not to say that NU:A doesn't have moments of sporadic entertainment (especially since the titular menace behaves in an eerily similar fashion as the "sentient" tornadoes in the movie Twister), it's just that the package as a whole is bland and uninteresting, much like the snow-covered wastes that make up most of the scenery. Everything you could expect from a made-for-TV natural catastrophe movie is present and accounted for, so much so that even a few minor tweaks here-and-there still render it indistinguishable from the usual early Sunday-morning drivel.
I could go on about the characters and plot, but it just seems kinda moot. Brothers Thom and Jock run a snowmobile rental service in Russia's Ural Mountains, a greedy developer is building a hotel on an unstable slope, and the pleas of a scarred female scientist fall on deaf and money-blinded ears, until disaster strikes! Throw in a few romantic subplots and useless fodder characters, and you get the drill.
NU:A is not a terrible movie, just a very boring one. It's stoically serviceable in every way, but hardly entertaining. If you watch it every night, you'll never have trouble getting to sleep again.