An intense supercell thunderstorm with a history of producing hail larger than softballs in southeastern Montana begins to move into northwestern South Dakota. August 9th, 2016.
A thunderstorm just southwest of Warwick, North Dakota produced a tornado on August 3rd, 2016. This photograph captures the early stages of the tornado.
A panoramic view of a mesocyclone directly overhead. This thunderstorm was producing ping pong ball sized hail at the time near Geuda Springs, Kansas. July 13th, 2016.
An ugly pattern coming up for the next week. Even next week's trough ejection may be muddled by continued troughing in the eastern U.S. It's not all that common for a lull in severe weather to start May, but still...
It's nice to see a stretch like this being modeled inside of 10 days. Of course details are subject to change, but this type of pattern should deliver at least one or two solid days: