U.S. Week 2-4 Outlook: Incoming cold lasts for awhile mostly affecting the Great Plains.

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Charts of the day: Frigid 6-10 day outlook by ECMWF. Discussion: This afternoon’s 6-10 day forecast by the ECMWF indicates a frigid arctic air regime thrust across the North-central and Midwest U.S. Snowfall is featured throughout the northwest Plains, Mid-South and Northeast U.S. Risk of <zero F affects much of the North-central, Midwest and Interior…