See them here.
The wife was particularly impressed with some Roll Clouds we saw one time while driving across Oklahoma. You never see those over here.
I saw some mammatus clouds over my house just last week. They made me very nervous, knowing that they are associated with tornadoes and atmospheric turbulence. The day before I saw them, there was a tornado about 6 miles north of where I live, and 75-80 mile per hour straight line winds about 3 miles away.
Nice pictures – thanks for sharing!
Yeah, mammatus clouds are scary.
Good to have a name for roll clouds. I don’t see them often and didn’t know what they were called. They’re kinda scary too.
Hehe, Booby clouds.
Do roll clouds have anything to do with a Dorecho?
I remember seeing a giant shelf cloud as a child. It was absolutely massive and ominous. Looked exactly like one of those pictures.
Wow, I didn’t realize the first 4 were rare clouds. I don’t see them every day, but I’ve seen all of those numerous times. Guess it’s one of the benefits of being an Okie. 
The nacreous and noctilucent were way cool, though. I’ve never even seen an Aurora.
Don’t forget my favorite type, the cloud of doom.
…'cause I speak from the mammatus of love…
Great pics, thanks! Here’s one of my favorite pretty-sky-pics sites…
Anyone who likes this kind of thing should check out the Atmospheric Optics website
http://www.atoptics.co.uk/.
There’s a great site with pictures of clouds and other atmospheric events to check out after you look at the pictures from the OP. There are also explanations for how and why the clouds form in the way they do.
Is there a reason for three in a row? 
Aw, I was hoping lenticular clouds might be in there.
Cool site, though. We’ve been seeing mammatus, roll clouds, and shelf clouds a lot this Spring.
Shelf clouds are formed at the leading edge of a squall line, and the coolest thing about them is the experience of being underneath them when they pass through. They mark the leading edge of a (powerful) thunderstorm downdraft, and when they pass over, BOOM! Suddenly it goes from calm-ish and muggy to extremely windy and cold as air from 15,000 or so feet up takes the express route down and scatters chaotically as it hits the ground.
And it’s not even a simulpost, nor are the links hidden in text. Weeeeird.
Hee… the mammatus cloud photo directly under the car in the montage has been called “The Day Terry Gilliam Played God” by several of my cartoonist friends.
What about the Undulus asperatus, newly recognised as a cloud type (pics).
I’ve seen an example of Undulus asperatus, which I photographed about ten years ago, and a nacreous cloud, unusual at the latitude (southern England).
For all things cloud you may also wish to try The Cloud Appreciation Society.
Mine was because the original recommendation didn’t give the name of the site, only the URL, and I didn’t recognize it. (I gave both, so I’m totally cool!
)
Those cloud pictures in the OP link are cool!
I saw some cool clouds back on May 26th and I wonder if there’s any particular name for them?
I took pictures, but the effect doesn’t quite come across. I had to heavily edit the picture to get the contrast and stuff right so you can actually see the pattern they made.
Do thesehave a name? Or, what causes the clouds to do this?
I wish I could have captured the total effect of those clouds…they were so neat!
The quick, inexpert guess would be the newly-named Undulus asperatus, linked to above.
I just now noticed the link to a picture of those Undulus Asperatus clouds posted by Pushkin (sorry!)
The third and fourth pictures look pretty much like what I tried to capture in my photo.
How pretty!!