Editor’s Note: The latest weather forecast can be found here. Our original story continues below.
While most attention is being paid to weather systems that could disrupt commutes Wednesday morning in Illinois and Indiana, it’s one of several occasions of snow that could hit the area over the weekend. It’s nothing more than
Areas south of Interstate 80, areas near Lake Michigan, and parts of northern Indiana are likely to be hit hardest by snow on Wednesday, with snow north and west of Chicago later in the week. Snow may fall in the suburbs.
Here’s what we know so far.
Wednesday before sunrise –
According to forecasting models, snow will slowly begin to fall in the area after midnight, and by 4:00 AM, the snow will spread across the region.
Winds blow from the east as a low pressure system moves across the upper Midwest, but winds change slowly during the day.
Wednesday morning –
According to the National Weather Service, morning commutes are likely to be significantly affected by snow, with system impact expected between 8:00 a.m. and 12:00 p.m.
As the low pressure system heads over Indiana and into Ohio, winds will begin to move from the north, and winds will blow across the warm waters of Lake Michigan, potentially creating lake-effect snow.
As a result, areas along the lakes in Illinois and parts of northern Indiana will see more snow, even as the snow begins to disperse in remote suburbs.
Snow is expected to be sporadic in areas near Lake Michigan, including Lake, DuPage, and Cook counties in Illinois, but snow accumulation is likely to persist in these areas.
Lake, Porter, and LaPorte counties in Indiana will see lake-like snowfall as a result of the change in wind direction.
Snow showers are likely to continue in some areas, but winds will continue to change and blow from the northwest as the day progresses.
Snow cover since round 1:
Ultimately, the largest snowfall is expected around Lake Michigan and northern Indiana, with parts of Cook, Lake, and Porter counties in Illinois likely to receive 4 to 6 inches of snow. in Indiana.
Areas south of the Chicago area will also see higher snowpacks, with the potential for 3 to 5 inches of snow.
The western suburbs will see 2 to 4 inches of snow, with more snow expected as the week progresses.
A fast-moving Clipper system is expected to pass through Illinois and Indiana on Friday, which could result in a mix of precipitation and snow, according to forecasting models.
The build-up from this system probably won’t be much, but more will arrive behind it as the weekend progresses.
Saturday and Sunday
Snow will roll into northern Illinois starting Saturday, hitting areas west and north of Chicago harder than it did Wednesday’s system.
That snow is likely to continue into Sunday afternoon, adding more snow and creating more travel concerns on area roads.
Snow cover from round 2
The system could have a greater impact on the northern and western suburbs, but the course of the storm could change in the coming days as more data is added to the NBC 5 Storm Team’s predictions.
At this time, 2 to 6 inches of additional snow is possible Friday through Sunday, with the heaviest potential snowfall north of Interstate 80.