May 10th I wasn’t expecting much at all. High temp/dewpoint spreads, weak surface flow as well as 500 MB flow, and a fairly stout cap, would leave me skeptical about any decent storms. However, nature would have the last laugh as she provided us with a spectacularly structured supercell off the Davis Mountains in southwest Texas. High based storms first formed and became severe along the north and eastern parts of the mountains, with one cell becoming a beastly storm. It tracked east, then south towards Marathon and eventually into the Big Bend region. This storm would also produce copious amounts of hail near Marathon.

2009, May 2009, supercell, Texas