Fog Bank, May 27, 2013

The first pick is from the NASA image of the day on May 22 with a MODIS satellite image of the storm that caused the tornado in Moore, OK
http://www.nasa.gov/multimedia/imagegallery/image_feature_2513.html

Brad Panovich posted a link to a NASA SPoRT blogpost about lightning activity just before the Oklahoma tornados.
http://nasasport.wordpress.com/2013/05/24/total-lightning-perspective-of-the-moore-oklahoma-supercell/
I haven't found out yet what the SPoRT acronym means.

I've got the commentary from the NWS office in La Crosse, Wisconsin, about the May 19 storms
http://www.crh.noaa.gov/arx/?n=may1913

From GoogleEarthPics, FIre Rainbows over Kansas
https://twitter.com/GoogleEarthPics/status/336286774080987137/photo/1

Tornado Titans posted a very nice photo of a supercell on the Oklahoma/Kansas border
https://www.facebook.com/photo.php?fbid=472012569535936&set=a.118272271576636.18272.118195624917634&type=3&l=94a709ad84&permPage=1

The NY Times had an article about the Oklahoma tornados
http://www.nytimes.com/2013/05/24/us/racing-the-clock-and-a-storm-a-way-of-life-in-tornado-alley.html?_r=0

I found an interactive map that shows before & after aerial pictures of Moore, OK.  You can move the point of view, and find the edges of the tornado's path.
http://tmappsevents.esri.com/website/swipe_moore/

Audio Fog Bank