On a local spotter mission I managed to take some pretty impressive video of a wall cloud and updraft complete with striations, in Michigan of all places! What luck.  A NWS Skywarn trainer plans to add this footage for the GRR area Skywarn spotter training slides.  His mission was to make all of the images and video represent Michigan storms, and this was specifically what he was looking for. Glad to help out! 

Another storm that moved over this same area just 45 minutes earlier produced a brief EF-0 tornado touchdown just to the north and west of here in New Salem Twp, MI. Damage occurred to the DeBoer turkey farm there.  The storm in my video however produced over 1" hail in northern Allegan county and even right at the GRR NWS office.  I also shot video of the same wall cloud, looking rather anemic at that point, passing right over the radar tower there. 
Later I was able to snap a few shot of some great updrafts!  Here's a weak, rather low topped LP supercell (yet again a rare in Michigan) complete with mammatus forming.

And another much larger storm going on at the same time over in the Lansing area. This one was tornado warned much of the day but did not produce.

Unique timelapse from my backyard.  Storms build in mid-afternoon just to our south. After a few hours, powerful severe storms have trained along southern Michigan.  As the sun sets, the Anvils from these storms light up bright Orange, revealing details like mammatus. As the sky continues to darken, the exposure from the camera becomes long enough to see lightning.  Due to the large focal length of the lens, Everything seems pretty far away, yet the view you see here extends from the horizon to nearly overhead.  Watch the full screen version of the movie in HD over at youtube for full effect.