Tourists are returning, events are expanding and a wave of wagering is washing over Nevada, where a September casino winnings report showed gambling at pre-pandemic levels. Casinos statewide took in almost $1.2 billion in house winnings in September, according to the state Gaming Control Board on Wednesday. Casino winnings from South Lake Tahoe were down more than 77% compared with the same month a year earlier, and 69% compared with September 2019 mostly due to wildfire closures.