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Daryl Ritchison, WDAY, Published November 22 2013

Weather Talk: Siberia snow cover just one variable in our winter

A connection between October snow cover in Siberia and winter temperatures in the northern part of the United States is well-known. The theory goes that the more snow cover there is early in the season in Eurasia, the greater the likelihood of below-average winter temperatures developing in Siberia. That, in turn, will affect the pressure and wind flow around the Arctic, allowing for more frequent intrusions of cold air into the United States.

These Arctic outbreaks often occur during the second half of winter. So how is Siberian snow this year? Siberia recorded well-above- average snow cover in October. In fact, an area equivalent to about 15 North Dakotas has above-average snow cover.

But before you invest in natural gas futures, you should know that this is just one of many variables that will end up affecting our cold season. Therefore, a cold second half of winter is far from a sure thing.


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or write to WDAY Stormtracker, WDAY-TV, Box 2466, Fargo, ND 58108

Read the blog at http://stormtrack.areavoices.com/.