Indiana Tornado Was a Strong F3
Posted on November 8, 2005
The killer tornado that killed over twenty people in Southern Indiana was a very large strong F3 tornado. Tornadoes of that strength are rare in November. The storm had winds topping 200 mph. It moved at speeds of up to 75 mph during the night.
The AP says, "The storm's strength, its 41-mile path of destruction and the fact that it struck in the middle of the night in November are all unusual, said Dan McCarthy, warning coordinator at the National Oceanic and Atmospheric Administration's Storm Prediction Center in Norman, Okla."
Wikipedia has an entry that explains the Fujita Scale. Sunday mornings tornado was the worst so far this year. There is a risk of severe weather in the Midwest today according to the SPC convection outlook.