Greater Nashville area blogger JD documents tornado damage at his high school.

According to The Tennessean, the damage from Friday's storms includes:

• 12 people killed
• At least 167 people injured
• At least 2,300 to 3,000 homes, businesses and farms damaged or destroyed
• At least 20 counties affected
• At least 12,200 homes and businesses lost power
• Buildings damaged included Centennial Medical Center in Ashland City, buildings on the campus of Volunteer State Community College in Gallatin and Metro Baptist Church in Goodlettsville