It’s looking more likely the Chicago area could see a blast of arctic air around and after Thanksgiving Day.

NBC 5 Storm Team Meteorologist Kevin Jeanes took a look at what’s going on and what the weather may look like going into December.

The potential for cold air is caused both by ridging in the jet stream in the Pacific Northwest and potentially something called a "Sudden Stratospheric Warming" (SSW) event.

An SSW is when large-scale waves in the atmosphere, called Rossby waves, get pushed higher into the atmosphere. This causes air to sink and warm rapidly around the polar vortex, which can dislodge and send the cold air southward into the mid latitudes, rather than staying bottled up near the North Pole.

The National Weather Service's Climate Prediction Center reported Tuesday th

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