Saturday marks the 8th Anniversary of the deadly tornadoes that swept through the Tennessee Valley.

The event began on April 25th. On this day, the Storm Prediction Center had placed Arkansas, Louisiana, Mississippi, and extreme southwest Tennessee in a Moderate Risk for damaging winds, tornadoes, and large hail.

By April 27th, 2011 the severe outlook was over the Tennessee Valley in a High Risk for all modes of severe weather. Take a look at the graph. This includes Chattanooga. At the time, the outlooks went from Marginal, Slight, Moderate, High, to Significant. With a High Risk for severe weather this day, a confidence level of all modes of severe weather was high.

READ MORE |  Remembering the Storm     

The Collegedale EF-4 Tornado impacted Hamilton, Bradley, Polk, and McMinn causing over 200 injuries and 13 fatalities. The East Cleveland EF-2 tornado was responsible for 3 fatalities. A 2nd tornado moves through Hopewell in Bradley county, producing EF-2 damage and caused 1 injury. An EF-4 tracked through New Harmony/Graysville in Sequatchie, Bledsoe, and Rhea, injuring 10 and causing 4 fatalities. 

The total tornado count across the Tennessee Valley was 55.

The total number of tornadoes to strike the south during the entire event (216), damaging wind (438), and large hail (207), bringing a death toll to 317.

If you have a weather-related story idea, feel free to email Meteorologist Brittany Beggs.