UPDATE: As of 3:45 p.m., there are currently four counties with Travel Advisories as La Porte and Elkhart Counties have joined St. Joseph and Marshall. 

Keep an eye on the Indiana Department of Homeland Security website for an up-to-date map of travel warnings, watches, and advisories.

ORIGINAL: ST. JOSEPH COUNTY, Ind. -- Both Marshall and St. Joseph Counties issued travel advisories on Wednesday afternoon in preparation for impactful snowfall that is expected to hit Michiana this evening. 

A travel advisory is the lowest on the three-tier scale of Travel Warning, Travel Watch, and Travel Advisory that each county's emergency management team manages. 

Keep an eye on the Indiana Department of Homeland Security website for an up-to-date map of travel warnings, watches, and advisories.