The Louisville-area chapter of the American Red Cross will hold its largest blood drive of the year Tuesday and Wednesday.The 32nd annual Donorama will be held the Crowne Plaza Hotel from noon until 7:00pm both days.Spokeperson Katie Mulloy says blood supplies can run low during the holiday season."It's an unpredictable time of year with winter weather and seasonal illness and people's travel schedules. All of those things can impact a donor's ability to give. So we created Donorama to keep supplies up for hospital patients," she said. Mulloy says Donorama will also include prizes and entertainment.The Red Cross is hoping to collect 1,500 pints of blood over the two day drive.It typically takes about an hour to donate a pint of blood. Mulloy says people can make an appointment to give blood at Donorama.