The 1973 Union City, Oklahoma tornado, shown here, was the first tornado captured by the National Severe Storms Laboratory Doppler radar and chase personnel. The tornado here is in its early stage of formation.
With the NOAA 200th Celebration coming to a close at the end of 2007, maintenance of this Web site ceased. Updates to the site are no longer being made.
The 1973 Union City, Oklahoma tornado, shown here, was the first tornado captured by the National Severe Storms Laboratory Doppler radar and chase personnel. The tornado here is in its early stage of formation.