Shelf near San Manuel

A monster shelf cloud moves towards the small community of San Manuel in southeastern Arizona

A monster shelf cloud moves towards the small community of San Manuel in southeastern Arizona

What a fantastic chase on Monday. I hung around the Marana area for a lot of the afternoon, but when a new cluster of storms blew up southwest of Casa Grande, I raced up there hoping they would do something great.

And wow they did. I’ll post more pictures later, but when I arrived south of Picacho, I time-lapsed a gorgeous storm as it slowly grew in strength and became weakly supercellular. The dusty outflow was intense and I cannot wait to get those time-lapses edited!
I raced back ahead of it and by this time the storm was picking up speed and it was tough to stay in front. As I neared Oracle Junction, a new cell blew up and essentially merged with the old one and now a shelf cloud was rapidly forming.

A slow truck kept me from racing as far ahead as I wanted, but by the time I got to the San Manuel Airport, the shelf cloud had turned into easily one of the top 3 I’ve seen here in Arizona. It was stunning, moving fast and behind it, golf ball sized hail was falling in places.

Such a blast of a day…so rare here to chase a long-track storm. This guy essentially blew up near Chuichu and died east of San Manuel. Almost 80 miles. Wow.