A major winter storm is affecting parts of the US, bringing snow and gusty winds to the northeast and dangerous driving conditions to the midwest and great lakes regions. The storm's impact may extend to other areas, potentially including the mid-atlantic and south, with some reports indicating it could bring heavy snow, freezing rain, and severe storms. However, there is some uncertainty about the storm's exact trajectory and effects, with conflicting reports about the regions most affected and the types of weather it is bringing.