Hi,
For the gif format images of this weather event we do provide
some sample files under this url:
"http://www.joss.ucar.edu/cgi-bin/codiac/projs?COMET_CASE_003#images".
You can view these gif images using your browser. If you have some
other visualization tool such as GEMPAK for NIDS visualization, those
NIDS files can be downloaded and viewed. GEMPAK is free software
supported by us and can be download from
"http://www.unidata.ucar.edu/packages/gempak/index.html". Let me know if
you have any more questions.