Winter weather is here and the roads are in bad shape across Colorado. With 16 inches on the way to parts of the state, things will probably get worse.

The National Weather Service has issued a winter weather warning Tuesday lasting until Wednesday for most of the state including northern and central mountain areas, the I-70 corridor, and front range/eastern plains areas. According to CDOT, here are some of the roads to watch out for due to heavy snowfall and significant impacts:

The Foothills and the Denver Metro area Tuesday morning into the evening rush hour and through the night: The heaviest snow and largest impacts will likely begin Tuesday afternoon, with 10 to 12 inches of snow expected to land over the Denver metro area.

I-70 Mountain Corridor late afternoon Tuesday through the night: Truckers must have chains and passenger vehicles must have either snow tires, mud/snow tires or chains/autosock. 4WD and AWD must also have snow tires or all-weather tires with 3/16 inch tread depth. Some closures have occurred on I-70.

I-25 South Gap: Expect reduced speeds, with 7 to 11 inches of snow expected by Wednesday afternoon.

According to CDOT, there are critical disruptions on CO 5, US 6, US 24, I-25, I-70, CO 71, CO 82, Co 91, Co 139, US 285, and US 550. I-70 EB/WB is also experiencing major delays, with a full closure between Exit 292 – US 36; Airpark Road (near Aurora) and Exit 359 – US 24 (near Limon). There is no estimated time for reopening.

Icy, snowy, and slippery conditions are expected. If possible, stay home. Take it slow, leave plenty of space between you and the vehicle ahead of you, and never pass plows. For the latest conditions on the roads, visit cotrip.org.

All road conditions, warnings, and weather forecasts are subject to change.