Iowa Lottery officials say the record Powerball jackpot in January helped send lottery ticket sales soaring to new records. The Powerball jackpot grew for more than two months before it reached a world-record level of nearly $1.6 billion. It was split three ways in the Jan. 13 drawing by tickets purchased in California, Florida and Tennessee.Iowa lottery sales in January exceeded $54 million, topping the previous monthly sales record of $42 million set in February 2006.