It’s not just the weather that’s hot. So are Powerball tickets. There was no jackpot winner -again- in last night’s drawing, and Iowa Lottery officials say the prize for Saturday night’s drawing may reach 200-million dollars. Joseph Brown works in a convenience store that sells Powerball tickets near the Minnesota border and says people are excited — and they’re buying.The odds of winning the top Powerball prize are one in 120-million.