<span class="sd">Tornado Graph</span>
<span class="sd">===============================================================================</span>


<span class="sd">&quot;&quot;&quot;</span>

<span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="k">as</span> <span class="nn">plt</span>
<span class="kn">from</span> <span class="nn">operator</span> <span class="kn">import</span> <span class="n">itemgetter</span>


<div class="viewcode-block" id="tornado_graph"><a class="viewcode-ba