The sixth grade class from Avoca Central School was featured in this week’s Weather Wisdom. Hayden asked, “How do tornadoes form?”
Ingredients for a tornado include moisture, change in temperatures, unstable atmosphere, lift, and wind shear.
When cold dry air mixes with warm humid air, this creates a lift in the atmosphere. Winds then come into play, something meteorologists refer to as wind shear- winds rotating and increasing speed with height. This can create a spinning horizontal column of air. A downdraft from a thunderstorm will cool that column of air down to the ground producing the tornado.