Several schools across the Chicago area have announced closures, early dismissals or switches to e-learning ahead of what could be the most significant snowfall of the season so far.

Over two dozen schools across the region have announced closures, or moves to e-learning protocols, ahead of Wednesday's anticipated snowfall, according to the Emergency Closing Center.

Below is the latest list of schools that have announced closures, early dismissals or switches to e-learning for classes on Wednesday.

Public schools

Private schools

Colleges

The announcements come as the Chicago area was upgraded from a winter storm watch to a winter weather advisory.

Weather

The alert from the National Weather Service, which takes effect Wednesday morning, warns of the potential for anywhere from 3 to 6 inches of snow across the region.

Heavy, widespread snow was expected to fall throughout the day Wednesday, with the highest totals expected during the afternoon and evening.

" Prepare for hazardous travel conditions , especially during the afternoon and evening commute when we expect the highest snowfall rates (potentially exceeding 1 inch per hour at times)," the NWS said.

Sharply reduced visibility, snow-covered roads and treacherous travel were all possible, the NWS warned.

According to the Illinois State Board of Education , districts are limited to five E-learning days per year.

Chicago Public Schools, which had not announced any closures as of Tuesday, has its own set of guidelines for determining if schools will close due to weather.

"Chicago Public Schools’ goal is to always have schools open. We don’t want students to miss valuable learning time and meals they may depend on as part of the school day," the district states on its website . "Therefore, CPS will do everything possible to keep classes in session as long as it is safe for students and staff."

Track an updated list of school closings across the Chicago area here.