In my continued obsession with Tree Ring Symbols, I’ve taken the seasonal tornado Tree Ring map and sliced it up into frames. The tornado season is like a wave that forms in the gulf, crashes over middle America, then rolls back to the sea.
There are a million ways to show movement (here are some others, using the same data, and here’s how they were made). Chronology is inherent in Tree Ring symbols, but the addition of subsetting the months and stitching them into a sequence is especially fun.
And, if you’d like to give your brain a rest and just look at the fours seasons, here are those…
Happy Mapping! John