Dunno, but I assume syfy channel as it's the home of these type of things, Sharktopus, Piranhaconda, Dinocroc v Supergator, etc etc.
Apparently Avalanche shark is more of a sequel to Sand sharks than sharknado, but in a similar vein. There is though a sharknado 2 on the cards thankfully.
Hours of viewing there
Brighty