Birmingham:
Here’s one from the University of Alabama in Tuscaloosa. Dude, great video, but get away from the freaking window!
Another one from Tuscaloosa:
From Cullman County (north of Birmingham):
Rose Hill:
Here’s the official NOAA page.
Edited to add: Someone just posted a link to the following video on this Fark thread:
Incredibly big tornado slamming Birmingham, Alabama right now. Here’s some footage I found on YouTube:
Instapundit reports his area (Knoxville, TN) is also under a tornado warning. There seems to be a huge belt of severe weather for several hundred miles.
If you’re in the area, you might want to get to the storm cellar, basement, or center of your house.