Duration of Cold Wave

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Below, I talk about the cold wave being around for a while. Below is the National Weather Service's 6 to 10 day outlook valid from next Saturday through Wednesday, November 19.
The latest European model ensemble is forecasting colder than average weather between the Rockies and the Appalachians up to Sunday, November 23.

This is why we are suggesting to do any urgent weatherization (your car, furnace, etc.) as soon as possible. Looks like this cold wave is going to be around for a while 

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