Multiple barns damaged after two tornadoes hit Wisconsin in one day yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Every weather alert on your phone or forecast you see on television in the southeast Wisconsin area uses data from the National Weather Service's office and data from volunteers across the region. WUWM's Mallory Cheng visits the office near Sullivan, Wisconsin, to learn more.