A strong upper level disturbance currently located in the Southern Plains will move northeastward into the Middle Mississippi Valley Monday morning. A surface low associated with the upper level disturbance will track across the central US tonight, bringing mixed precipitation to areas of southeastern Wisconsin.
Current guidance suggests the low will pass far enough south of Wisconsin that only the southeastern portion of the state will be affected. Assuming the low tracks as expected, precipitation will begin as freezing rain or sleet late this evening, as temperatures will remain right near freezing. The precipitation during this time period is expected to remain south of a Milwaukee to Monroe line. The precipitation will transition to snow after midnight and is expected to remain south of a Port Washington to Mineral Point line during the early morning hours. Any precipitation will end by sunrise Monday morning.
A Winter Weather Advisory is in effect for Kenosha County tonight until 6 am CST Monday morning.