There are an amazing variety of clouds - all you have to do is wait for the changes.
Below is a picture of a very interesting cloud. Initially, some people might think it's a picture of a tornado. Let's be honest - it can look scary to some folks! The picture was taken by Brent Cook, of MidWestSSTRC, Inc., on June 19, 2011. Brent is on the north side of Janesville on STh 14, looking west-northwest at a thunderstorm cell in the Evansville area. Click on image for larger version.
Guess what - it's not a tornado!
Yep, it's a picture of a "Scary-looking Cloud." Nothing more than a pretty good rain shower coming out of the base of a towering cumulus cloud! That dark grey stuff at the base of the cloud down to the earth's surface is nothing more than rain. However, the physical structure of the cloud with the rain underneath it and the picture angle makes it look like a tornado.
If you wait long enough you'll find other "Scary-looking Clouds." So many of you have taken pictures of scary-looking clouds over the years that we started an on-line "Scary-looking Cloud" (SLC) Club a few years ago. The SLC Club show-cases the best of the SLCs, and explains a few things about SLCs, tornadoes, etc.
Click HERE for the link to our SLC Club which is found on our SkyWarn page on this web site.