Severe winter weather conditions have led to the closure of part of I-80 westbound, with blizzard conditions contributing to multiple vehicle pileups in Cass County, affecting both Nebraska and Iowa. An emergency vehicle responding to these incidents was struck while on the scene. Reports indicate that the area near Shelton has been cleared after two crashes, but the hazardous weather continues to impact travel, resulting in flight cancellations and ongoing safety concerns for motorists.