Officials with the Iowa Storm Chasing Network said today (Monday), the Wayne, NE tornado  measured nearly 1.4-miles wide, and is the widest tornado to ever occur in the month of October since 1950. The National Weather Service said Sunday, the tornado was rated an EF-4 with peak winds reaching 170mph.

It was on the ground for 19 miles and injured 15 people. The Weather Service says October tornadoes are unusual, but not unheard of. Last year, there were 41 tornadoes nationwide in October.