The first true outbreak of Arctic air in the United States will accompany the first far-reaching heavy snowfall of the season from the northern Cascades to the northern Rockies and northern Plains. AccuWeather meteorologists say additional rounds of snow will follow and may eventually lead to the first episodes of accumulating snow and ice farther.
The first major snowstorm of the season is about to unfold over part of the Rockies and northern Plains and will be accompanied by strong winds and bone-chilling cold.
An area of high pressure that originated in the Arctic has plunged southward across the region, providing the cold air to support snow, and moisture Gulf of Mexico will add the necessary fuel.
"The snow from Montana into North Dakota can come in two rounds in some locations," AccuWeather Senior Meteorologist Adam Douty said. Temperatures have trended lower compared to late last week when highs were well into the 60s, 70s and 80s in the region, and the surge of cold air may shock visitors and residents new to the region.
Strong winds often accompany early-season cold blasts, and this outbreak will be no exception. So, as the snow flies, the visibility will drop.
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