Here are some pictures of the damage around the little town of Renick, Mo. from the March 12th, 2006 Great Tornado Outbreak. Here is some detailed official information from the National Weather Service office in Pleasant Hill, Mo. Here is a detailed map of the tornado paths that I got from the previous link.
And here's the summary from the NWS:
A significant tornado outbreak occurred over portions of eastern Kansas and western Missouri on March 12, 2006. In addition to the fourteen tornado touchdowns detailed below, 201 reports of large hail and/or damaging winds were also received from virtually every county in the Pleasant Hill service area. To put the March 12 outbreak into perspective, an average severe weather season in our local area brings approximately 11 tornadoes, and around 400 reports of hail and/or wind to the local region.
Those 14 tornadoes only occurred in the NWS Pleasant Hill's coverage area. There were more to the northeast. Here is the Local Storm Report from the St. Louis NWS office. I just checked and they have not published a final count.
Thanks to Janice for the link to the pictures.