Winter weather advisory in effect until noon Saturday

The entire Chicago area is under a winter weather advisory as all of northeast Illinois and northwest Indiana may see a dusting of snow that is expected to shift to rain as Saturday progresses.

A “wintry mix of precipitation” will move across the area throughout the morning, according to a National Weather Service forecast.

As of 7 a.m., .4 inches of snow had been recorded at O’Hare International Airport, according to the weather service.

The city’s fleet of more than 280 snow plows and salt spreaders were deployed to main streets and Lake Shore Drive overnight, according to a statement from the Department of Streets and Sanitation. As of 8:50 a.m., the snow and ice removal vehicles had been redeployed to neighborhood and side streets.

The winter weather advisory remains in effect until noon, according to the weather service.

Temperatures will increase from south to north from late morning into afternoon, shifting the snow to rain or drizzle.

Snow may return Saturday night, with up to one inch accumulating overnight. The high temperature is expected to stay around 30 degrees, the weather service said.