centrotip24

August 19, 2011 - This a redo so to include actual audio from the event.

Time lapse of a tornado warned storm to basically go overhead of my location in NW Decatur IL. This cell was tornado warned for most of it's duration with a strong couplet noted on velocity radar scan. The storm pretty much collapsed into a downburst at my location but not before producing a large wall cloud that I lost due to going behind my building. It can be seen at right as well as numerous leading edge circulations including a possible funnel cloud. This was not the Williamsville cell but a secondary one just to it's S. To give perspective, i've included a radar sequence.

Clips, audio and radar sequence featuring a tornado warned storm lifting out of Christian County IL this day. Aside from being unique for the time of year, significant wind damage was reported across the region. More info c/o NWS below.

http://www.crh.noaa.gov/news/display_...

Montage of a tornado warned storm that produced numerous EF0 tornadoes between Macon and Piatt counties this day. Additional tornadoes were also reported in Vermilion county as well. The entire complex went up along a stalled frontal boundary with the most significant end result being the flash flooding to occur within the I-72 corridor between Springfield and Champaign.

Trained spotter reported brief touchdown occurring further upstream near De Land.