MPR’s Lorna Benson presents a minute-by-minute look at how the tornado warning system in Minnesota worked during last Sunday's tornado and storms that hit hard in north Minneapolis.

North Minneapolis and nearby suburbs were struck by a devastating tornado on Sunday, May 22, 2011. One man died and 48 were injured from the tornado; another man died in the cleanup.  Tornado impacted 3,700 structures, causing millions of dollars in damage to homes, businesses and infrastructure. It also displaced countless neighborhood residents. The path of storm extended from St. Louis Park to Blaine.