Wind gusts of up to 70 miles per hour have knocked out power to more than 20,000 Chicago-area residents on Monday afternoon.
The strongest gust reported so far was in Sugar Grove in Kane County, where a gust of 67 miles per hour was recorded, according to the National Weather Service.
Other gusts in excess of 60 miles per hour were recorded in DeKalb County and in Winnebago County, according to NWS officials…