Snow and Sleet Accumulating Tonight (Updated 1130 pm 1/12)

A low pressure system will pass by well to our south tonight, but the precipitation associated with it continue to reach well into southeast Wisconsin.  A Winter Weather Advisory remains in effect until 6 am Sunday morning for Sheboygan, Washington, Ozaukee, Jefferson, Waukesha, Milwaukee, Rock, Walworth, Racine, and Kenosha Counties. This is where the highest amounts of snow and sleet, with a mix of freezing rain, are expected.

The current local and regional radar images are shown below (click on each image for a larger version): 

Local radar

Regional radar

The image below shows a visible satellite image from around 2 pm CST Saturday. The black lines indicate mean sea level pressure at that time. Notice the forecasted low track in red. Also highlighted are a few interesting features to our west: volcanoes in the Pacific Northwest (bright dots the arrows point to), the Great Salt Lake, and snow in the mountains of eastern California. Clear skies allowed these features to be seen by the satellite.

Low pressure track and satellite image

The image below shows the snow accumulation expected through around 7 AM Sunday morning.  Parts of southeast Wisconsin could see nearly 3 inches of snow, with lower amounts expected to the northwest.  The far southeast counties will also see sleet and freezing rain mixed in with the snow at times.  The precipitation is expected to taper off from west to east early Sunday morning.



NWS Milwaukee/Sullivan, WI

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