Many "Storm Chasers" carry a GPS in their vehicles. This link will give you an idea of where the chasers are located. It is a valid assumption that if there are a large number of storm chasers in your area... that the risk of storms is high.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or email@example.com.