First Shot Of Snow For Many, Arctic Air On The Way

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First Shot Of Snow For Many, Arctic Air On The Way

By now, you are well aware of the intrusion of cold, Arctic air that will impact the US beginning this week. This shot of cold that would resemble mid-winter type temperatures is a result of a displacement in the jet stream that was caused by the Bering Sea storm – former Super Typhoon Nuri – over the weekend. The displacement in the jet stream caused by the Bering Sea storm caused a massive dip in the jet stream which will result in cold, Arctic air make its way well into the US.

The guys at the Climate Prediction Center are seeing a widespread intrusion of very cold air moving in over the next week (6-10 days), well into the middle of the month… Even the 8-14 day outlook suggests not much relief of the cold…

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Climate Prediction Center 6-10 Day Temperature Probability Outlook

 

The following computer forecast models will hopefully give a scope of this intrusion of very cold air next week and beyond… These computer forecast models are intended to give us an idea of developing trends and are not “written in stone” forecast.

Here is the hi-resolution GFS valid midday on Wednesday as this shot of cold air surges south into the central US…

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Temperature Anomalies – Courtesy of tropicaltidbits.com

 

By midday Friday, the cold air spreads across the east as well…

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Temperature Anomalies – Courtesy of tropicaltidbits.com

 

Looking ahead to the following week, and there is really no letting up in the cold air…

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Temperature Anomalies – Courtesy of tropicaltidbits.com

Again, while these are not forecasts, the computer model guidance are used to identify trends, patterns, etc and for quite some time now, the trend has been constant and consistent in showing this intrusion of cold, Arctic.

BEFORE THE COLD, THERE WAS SNOW:

Ahead of this wave of very cold air, Winter Storm Warnings and Winter Weather Advisories are in place across the upper Plains, upper Midwest and part of the northern Great Lakes in advance of large swath of heavy snow across the upper Plains that will make its way across the regions through the beginning of the week.

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Current look at radar as of 8:25pm ET… the upper Plains are seeing some decent snowfall at this time…

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Across parts of the Dakotas, central Minnesota, northern Wisconsin and into the northernmost Great Lakes, a heavy swath of 6-12″ will be very possible, possibly heavier amounts over the northernmost Great Lakes…

Here is the latest model output from ECMWF (European model) through Wednesday morning…

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European Model Guidance projected snowfall amounts through Wednesday Morning – Courtesy WxBell Analystics

As we head through next week, it will feel more like the middle of Winter rather than the middle of Fall. Remember, with this type of weather, make sure to bundle up in layers and prepare for the elements. I’ll continue to post updates, as always, with any new information as it becomes available.

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About Author

John Kassell

He discovered his interest in weather as a child. Over the years, that interest developed into a passion, and moreover, into a way of life. He graduated from the University of Akron in 2010 with a B.S. in Geographic Information Sciences and a concentration in Climatology.

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