Rochester, MN
The day started out with typical summer weather, hot and a little humid. By around 4pm a small storm had rolled through and cooled it down, but there was another one coming that kind of popped up out of nowhere.
Having just finished dinner I decided to look out the window and saw the huge wall cloud out the window. I grabbed my camera and jumped in the car to reach the spot. I setup the tripod and was able to snap off a few shots before the clouds were fully overhead and couldn't see the edge anymore.
I was really lucky to have looked out the window otherwise I would have missed this great storm.
Camera: Nikon D810
Lens: Nikkor 24-70 f2.8
ISO: 64
Aperture: 14
Exposure: 1/2 sec