Chinook winds are back in Montana, bringing dramatic temperature swings, strong wind gusts, and rapidly melting snow. Here's the science behind them.

Add Yahoo as a preferred source to see more of our stories on Google. Regional winds all over the world are given different names. Santa Ana winds across the West, and Europe has Sirocco winds.

Regional winds all over the world are given different names. Santa Ana winds across the West, and Europe has Sirocco winds. Portions of the Plains experience their own local winds: Chinook winds.