Rain changing over to wet snow with minor accumulations expected in the Chicago area overnight
Update 6AM CST Thursday…
Snow flurries continue across the Chicago area this morning with the main low pressure system having moved off to the east. Overnight accumulations of up to an inch of sow occurred along our counties adjacent to the Illinois-Wisconsin state line with lesser amounts to the south. The Snow Advisory for Wisconsin and Iowa has ended with a strip of 8 to 10-inches falling along and north of a Madison to Milwaukee line and farther west, again tapering off south to around an inch along the Illinois-Wisconsin border.
Rain will be changing over to wet snow from west to east across the Chicago area this Wednesday evening. Colder air is flowing over northern Illinois into northwestern Indiana, changing rain and drizzle over to a steady wet snow. Snow will melt on impact initially, but slowly accumulate on grassy and cold surfaces. An inch or two will be possible as you go north toward the Illinois-Wisconsin state line, so travelers should be aware of deteriorating conditions the farther north you go. North along a line from Madison to Milwaukee 6 to 8-inches of snow had fallen by 6PM CST. Traveling south of Interstate-80, snow will be lighter probably just mainly melting on contact.
Winter Weather Advisories (purple-shaded areas on the headlined map above) for 2 to 4-inches additional snow continue until midnight CST for the southern portion of Wisconsin and 1 to 2-inches in northeastern Iowa.
Below is the current Metro Weather radar mosaic…