While new model trends are pushing the storm system on a more easterly path, high winds and new powdery snowfall will lead to the possibility of blizzard conditions Thursday night (1/6)
This event will generally be a two-parter. Light snow is expected Wed. night into Thurs. afternoon. Then, winds will kick in and another round of snow will fall late Thurs. afternoon through Fri. night. Blizzard conditions/frigid temps will be possible during this time. (2/6)
These will be the approximate times when each facet of the storm/frigid temperatures will have the most impacts to the public. (3/6)
Wind speeds will reach up to 45 to 55mph, especially Friday morning into Saturday. This will create reduced visibility and drifting on roads that will make travel difficult. (4/6)
Along with the snow and wind, frigid air temps with the high wind speeds will lead to wind chills well below zero leading to advisory criteria conditions. Minimum wind chills for Friday and Saturday morning are shown below (5/6)
As the details of the storm continue to come together, please stay tuned into tomorrow as we continue to assess our headlines for potential changes as confidence increases. (6/6) #wiwx

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More from @NWSMilwaukee

Dec 20
1/4 | Light snow exits the area this morning, then the attention focuses on the upcoming winter storm. We continue to expect accumulating snow and very strong winds, with blizzard conditions possible Thursday night through Friday night. #wiwx
2/4 | On top of blizzard conditions, these winds could cause damage to tree limbs resulting in the potential for sporadic power outages. Blowing and drifting snow will continue to impact travel through Saturday. #wiwx
3/4 | While model trends have shifted southeast with the storm track and snowfall amounts remain uncertain at this time, it should be noted that we don't need significant snowfall to create blizzard conditions! #wiwx
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