Taking the cash option of $198.1 million, minus taxes, West said she plans to use the money to support her family - including her mother, seven siblings, three daughters and six grandchildren - and help others.
West continued during the press conference, "My girls and I used to dream about winning the lottery".
The drawing came only four day after someone won a $1.54 billion Mega Millions jackpot, the second-largest lottery prize ever.
In winning the Powerball jackpot, West overcame odds of one in 292.2 million, CBS noted.
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"I'm going to get a auto big enough", she added to CBS, "that I can take all my grandchildren places now". "They thought I was insane". Her sister sent her a picture of the ticket and when West checked her numbers on the lottery website, she realized she'd won.
West, who has been working since she was a teenager - even spending her high school days in the local corn and soybean fields - said she'll definitely use a portion of her winnings on some much-needed R&R.
West said she had just purchased her first home and was moving on October 26th when her sister took her to the Casey's General Store in Redfield to get a slice of pizza and coffee.
West said it took her a minute to fully realize that she had won, at which point she told her sister to "get that ticket, get into your truck, get up here now and drive slow".
Now, West has big plans.
She plans to buy a new house and replace her auto, a Ford Fiesta with 142,000 miles (228,500 kilometres) "that people have beat up". "Currently I drive a Ford Fiesta that people have just beat up when I'm not in it", West said, noting that the auto had 142,000 miles on it. "I'm gonna get a vehicle that I can take all my grandchildren places". The charitable foundation will be focused on making grants in the core areas of alleviating poverty and hunger; education; animal welfare; and veteran's affairs.