How insane is this? A huge avalanche in Thompson's Pass near Valdez, Alaska has closed roads and blocked off an entire town in the process.

Even though avalanches are pretty common in this region, this one is one of the biggest they've ever seen, and the backlog of water behind the slide is proving pretty dangerous.

Check out the news report above for the full scoop on the situation and as always, keep in mind the fact that avalanches are always a possibility when you go snowboarding.

Here's another flyover view of the avalanche: