Ketchum and Sun Valley are in a weather forecasting dead-zone in the rural mountains of Idaho. The one thing you’ll notice first with locals is the backseat of their cars are ready for both an Everest expedition and a day at the beach. As someone enmeshed in the very fabric of Sun Valley, Matt Gorby (or “Gorby” as he’s know to many locals) is as good as anyone to help break down the intricacies of the weather in our unique town. Ketchum’s favorite bartender and all-around mensch, Gorby, moved to Ketchum from the east coast 27 years ago. Since then, he can be found bartending at The Casino, doing graphic design, drinking coffee at Starbucks, starring in the area’s plays, announcing the Wagon Days parade, or simply being a family man to his wife and daughter. How would you describe the weather year round in our area? Matt: You know what they say about the weather here: if you don’t like it, wait 5 minutes because it’s going to change. The fact of the matter is, it’s life in the mountains; you don’t know what you’re going to get. Weather makes a right turn at you all the time and …