Mid-level stability and moisture index likelihood of extreme fire behavior. 1991. Raddatz, R.L; Kluth, G.; Hirsch, K.G. Pages 39-44 in W.J. de Groot, compiler and editor. Proceedings of the seventh central region fire weather committee scientific and technical seminar, April 4, 1990, Winnipeg, Manitoba. Forestry Canada, Northwest Region, Northern Forestry Centre, Edmonton, Alberta, Study NOR-05-09, File Report No. 1 November 1991.