BALTIMORE, MD—After an unseasonably warm Christmas weekend in Baltimore, expect a chillier start to the week.

The National Weather Service says a wintry mix is expected Monday morning.

A Winter Weather Advisory is in effect for Garrett County and western Allegany County, primarily due to the threat of freezing rain.

The advisory could be expanded further east.

A light dusting of accumulation is possible in northern Baltimore County before the precipitation turns to all rain.