First responders searched homes and buildings on Tuesday for possible victims, a day after a powerful tornado touched down in northeastern Wisconsin, hollowing out homes and toppling power lines as it remained on the ground for more than 20 minutes. Despite widespread damage, the timing of the storm could be why there have been no reported deaths. The tornado arrived in the early afternoon, authorities noted, when most people were awake and after warnings had been issued. Dozens of people were injured, and officers were still going door-to-door a day later in search of possible victims. The tornado touched down around 1 p.m. and remained on the ground for more than 20 minutes, cutting a roughly 12-mile (19.3-kilometer) path of destruction, the National Weather Service reported.