Winter weather advisories or winter storm warnings were in place for seven states early Tuesday morning, with the National Weather Service forecasting up to 12 inches of snow for some parts of the country. Winter storms can cause power outages, while snow can interfere with travel and create dangerous driving conditions.

The cold air will be somewhat limited, but enough arctic air will wrap around the system that a snowstorm could break out in parts of Arizona, New Mexico and portions of the Plains.