Ideally, we would like to have a TVS detection from the TDA algorithm on this
volume, since a tornado is in progress. The missed detection in this case
may be due to a distinct lack of precipitation that was observed in the
RFD region. South of Stecker we find strong outbound velocities in the
region where rain, hail, and other scatterers are returning power to the
radar. However, there are very few gates of inbound velocities. It appears
the RFD region, on the south side of the tornado, was relatively void of
scatterers, and prevented a TVS detection. The red triangle below
has been added to aid interpretation.