This was new to me; it was in our paper today: derecho. Here's a partial quote: ... intense super cell storms that are more commonly seen in March or April.

And some of those cells are spawning a rare type of storm called a "derecho," which can carry hurricane-force winds. They typically occur only twice in a decade in Kentucky.
http://www.courier-journal.com/localnews/2004/07/15storms/A1-summer0715-6735.html
I did a Search, which revealed 3 posts in a Spanish context, so I went ahead with this.