Hurricane Katrina was a category five storm, meaning the windspeed of the hurricane was 157 mph or higher. Hurricane Katrina: Race Against Time explores the effects of a natural disaster that changed America. With rarely viewed archive footage, first person testimony and interviews with the major government and emergency response personnel, this five-part series reveals Katrina’s definitive story for the first time. Watch Hurricane Katrina: Race Against Time on Monday 28th July from 8pm on Natio