 For NPR News in the Twin Cities, I'm Emily Reese. It's not yet clear exactly how much recent flooding across the state will cost, but the price tag will be high. And weather events like it could increase insurance rates for Minnesotans. Grace Arnold is commissioner of the Minnesota Department of Commerce and has held roles in the department overseeing insurance. She said last year one half-hour storm in the Twin Cities in August caused a billion dollars in damage.