Hazardous winter weather was expected through early Wednesday, according to forecasters. The storm had dropped a wintry mix of precipitation across the Midwest overnight.

Snow began falling in the city of Pittsburgh around 3 a.m. after a winter weather advisory was issued for all of western Pennsylvania along with parts of Ohio, West Virginia, and Maryland. Most of the area saw 2 to 4 inches, with Pittsburgh picking up 3.6 inches.

As New Englanders know, storms are not always well forecast, with snowfall amounts sometimes over or under forecast and some starting earlier or later than expected.

The Tuesday morning commute in northern New Jersey could be messy with a mix of snow, sleet and rain, forecasters say.

Oklahomans are bracing for another round of winter weather Thursday, as a storm system could bring snow and ice to the state.

The Pennsylvania Department of Transportation announced that it is temporarily reducing the speed on several roadways in the Harrisburg region due to the ongoing winter storm. In a press release, PennDOT said that while it had been treated the roads, they will not completely free of ice and snow and caution should be applied.

The first major storm of the winter covered parts of the Northeast and mid-Atlantic with snow and ice Tuesday, making roads hazardous, disrupting travel and closing schools.