This image is the homepage for the National Weather on July 11, 2008. The map of the United States has several different colors on it. These colors show the advisories, watches, and warnings for the day. On July 11, Minnesota had tornadoes, hail, and high winds. The red and yellow colors on the map are the tornado watches and warnings for Minnesota on that day.
Courtesy of the National Weather Service Office of Grand Forks, ND/Chauncy Schultz