Winter Weather Advisory Expands, Now Covers All of Northern Illinois, NW Indiana - NBC Chicago

The National Weather Service has expanded an existing wintertime upwind advisory for each of bluish Illinois and northwest Indiana, with snowfall expected to snarl postulation during the greeting commute successful astir locations.

According to the latest guidance, the advisory volition instrumentality effect astatine assorted times passim the area, with anyplace from 1-to-6 inches of snowfall imaginable by Wednesday evening, with parts of cardinal Illinois and cardinal Indiana seeing the heaviest accumulations.

The caller advisory volition instrumentality effect astatine midnight successful LaSalle, Kendall, Grundy, confederate Cook, Will and Kankakee counties successful Illinois, arsenic good arsenic Lake, Porter, Newton and Jasper counties successful Indiana.

The Illinois counties volition stay nether that advisory until 6 p.m., arsenic volition Newton and Jasper counties, according to the alert. Areas person to Lake Michigan, including Lake and Porter counties successful Indiana, volition stay nether the advisory until midnight Thursday.

While nonstop snowfall predictions are inactive being dialed in, the National upwind Service says that the highest accumulations volition apt hap successful cardinal Illinois and successful Indiana, with Lake, Porter, Newton and Jasper counties perchance seeing 3-to-6 inches of snow, with immoderate locally-higher totals possible.

In Illinois, areas southbound of Interstate 80 could spot betwixt 2-to-4 inches of accumulation, with the greeting commute being mostly impacted by the snowfall.

Lake and DuPage counties, arsenic good arsenic northbound and cardinal Cook County, volition spell nether the advisory astatine 3 a.m. and volition stay nether the advisory until 9 p.m.

Those areas person to the water could spot slightly-larger accumulations, with 2-to-4 inches of snowfall possible.

Finally, McHenry, DeKalb and Kane counties volition beryllium nether an advisory from 3 a.m. to 3 p.m. Those counties should spot less-intense accumulations, but roadworthy conditions Wednesday greeting could inactive beryllium hazardous.

The Wednesday snowfall is the archetypal of respective disturbances that could bring wintry upwind to the area, with different clipper strategy expected to get Friday and respective much rounds of snowfall imaginable connected Saturday and into Sunday, according to the NBC 5 Storm Team.