vent</dt>
<dd><p>Boolean indicating if all criteria that define an extreme event
  are met.</p></dd>

  <dt>event_no</dt>
<dd><p>A sequential number indicating the ID and order of
  occurrence of the events.</p></dd>

  <dt>intensity</dt>
<dd><p>The difference between <code>temp</code> (or the column provided
  for <code>y</code>) and <code>seas</code>. Only added if <code>categories = TRUE</code>
  and <code>climatology = TRUE</code>.</p></dd>

  <dt>category</dt>
<dd><p>The category classification per day