June 15, 1981 - MPR’s Linda Peinovich interviews meteorologist John Graff, who describes the path and destruction of tornado that struck areas of Twin Cities on June 14, 1981. Graff notes it was a singular tornado that made a straight line through the metro.
August 24, 1979 - MPR’s Dan Olson and Rich Dietman visit the National Weather Service office. They talk to meteorologist John Graff and others who explain their forecasting equipment, the costs of the operations, trends in weather, and other aspects of their work.
May 30, 1974 - MPR’s Greg Barron presents an introduction to the history of thunderstorm and tornadoes in Minnesota. Barron interviews numerous officials from the National Weather Service about 1970s era forecasting.