A strengthening storm system will move across the country this week, bringing blizzard conditions to the Heartland and tornadoes and damaging winds to the South.

Dangerous severe weather is on the horizon with damaging winds, and tornadoes possible as a line of storms rips across the Plains and South. The multi-day severe thunderstorm set up began Sunday but will shift into the Gulf Coast by Wednesday.

According to the National Weather Service, the storm will primarily impact eastern Colorado overnight, with snowfall continuing into Tuesday. Some areas could see up to a foot of snow, while winds could reach 50 mph — and possibly as high as 60 to 70 mph in the southeastern part of the state.