"I thought I'd just give it a try," Powell said. "The lady at the store told me, 'You truly have beginner's luck.'"
Powell said she checked the numbers from Saturday's drawing later that night.
"When they did the Powerball drawing, I was looking at the numbers and then I screamed at my husband," she recalled. "I said, 'Oh my god, we won.'"
Powell's $3 Power Play ticket earned her a $150,000 prize.
"It's like a dream," she said. "Except I haven't been able to sleep."
Powell said her winnings will go toward a new car and a new home.
"I never would ever think I would win something like this," Powell said. "I'm going to make this count."