Downburst 2 : A sudden rush of cool air toward ground that can impact with speeds over 70mph and produce damage similar to that of a tornado. It usually occurs near the leading edge of the storm or may occur in heavy rain
A Guide to Developing a Tornado Emergency Plan for Schools (Also includes information for Instruction of Tornado Safety) and Appendix C: General Tornado Safety, Appendix B: Glossary of Weather Terms, and Appendix C: General Tornado Safety, Tornado and Associated Severe Weather Terms, The Michigan Committee for Severe Weather Awareness), Michigan, USA 1999. http://rems.ed.gov/docs/micswa_tornado_em_plan_for _schools.pdf, (ND Emr/ Tornadoes - Amer) {938}