Risk of cold weather in coming week or two increasing

A very cold arctic airmass has been building in Alaska and far northern Canada over the last week. Over the first eight days of November, Fairbanks, Alaska has had an average high of 0 and average low of -13, fifteen degrees below normal for the beginning of November. So far, this very cold air has been held up by the jet stream over the far north, but that may change over the next week or two. The computer models have a difficult time forecasting weather patterns this time of year, especially the track of storm systems and the movement of very cold arctic air masses, and so a few minor changes in the flow could result in major changes to the forecast in the day five to day ten period. Depending on the evolution of the jet stream, Wisconsin could see two or more days next week with high temperatures in the 20s and a chance of snow, or the cold air could get held up and the weather could remain relatively mild. As of today, the colder scenario appears more likely.