Also known as a winter thunderstorm or a thunder snowstorm, thundersnow is an unusual weather phenomenon that is becoming quite common in some parts of the States. Today I chanced upon the term in an article about unusual weather, and then I searched for it on the World Wide Web. To my surprise, the term is all over the place by now. There is even a Wikipedia page dedicated to it in its entirety. Interestingly, the term is not yet recognized by my word-processing software. It is thus underlined in red to indicate misspelling. At any rate, new terms for unusual weather phenomena will be popping up left and right in the future. Climate change will perforce lead to language change. And language change will be an excellent indicator of climate change in the years to come. This will be an excellent opportunity for wordsmiths of all sorts, to be sure. Whoopee!