DUBUQUE, Iowa (AP) — The National Weather Service has confirmed that a tornado touched down southwest of Dubuque. The service says the twister struck around 10:05 p.m. Monday less than a mile from Dubuque, west of the airport, and lifted after churning only a few hundred yards. No injuries have been reported. The service says the EF1 tornado had winds of around 100 mph. It damaged corn, trees and the roofs of two houses.