ANN ARBOR, Mich. (AP) — A powerful storm system struck Michigan overnight Wednesday, damaging buildings and resulting in power outages for thousands of residents. Crews were dispatched to Ann Arbor near the University of Michigan's main campus, where wind gusts reached as high as 70 mph.

Damage assessments were initiated by National Weather Service teams, focusing on identifying if tornadoes were involved as the storms passed. Emergency alerts were issued, compelling residents to seek shelter as winds uprooted trees and tore the roof off the Yost Ice Arena.

In Ann Arbor, public schools were closed due to a fiber outage that impacted fire alarms and phone systems. Mayor Christopher Taylor reported assessing the structural integrity of public facilities, including an ice arena.

By the evening, over 15,000 residents remained without power. With more storms predicted, attention turned towards recovery efforts as officials braced for further inclement weather.

Witnesses reported frantic scenes as trees fell and buildings were damaged. One resident recounted waking to sirens and alerts around 2 a.m., only to find a massive tree had come crashing down nearby.

As the storm moved across the Midwest, Wisconsin declared a state of emergency as tornadoes and severe weather were reported, prompting a broader alert across the region. Power outages and flooding remained a significant concern, pushing local authorities to issue warnings and monitor rising water levels in vulnerable areas.

The situation continues to evolve, as meteorologists highlight an unstable weather pattern bringing additional severe conditions this week, with forecasts of intense rain and potential flooding across several states.