Dust Devil 5 : A small, short-lived dust vortex that whirls along at 20 mph (3 kph) and about 1,640 feet (500 m) up in the air; created by ground heating
Forces of Nature: TQ2000 - Severe Storms: Glossary, USA 2012. http://library.thinkquest.org/C003603/english/seve restorms/glossary.shtml?tqskip1=1, (ND/ Severe Storm - Amer) {73}
Natural and Environmental Disaster Information Exchange System European Commission NEDIES, Forces of Nature: TQ 2000, Glossary (definitions of important terms related to forces of nature), Directorate General Joint Research Centre DG JRC, Institute for the Protection and Security of the Citizen (IPSC), Varese, Italy 2012. http://library.thinkquest.org/C003603/english/glos sary.shtml, (ND/ Gen - Brit) {154}