A violently rotating storm of small diameter; the most violent weather phenomenon. It is produced in a very severe thunderstorm and appears as a funnel cloud extending from the base of a cumulonimbus to the ground. A funnel cloud is a tornado that has not touched the ground. Tornados can appear in many different colors depending on the type of dust they pick up from the earth. sources: GLIDE; WMO
5 Aug 2015, New York Times
Every year, the United States foots a multi-billion dollar bill for the economic and insured losses incurred from natural disasters, reports the New York Times. In 2014, the costs reached $25-billion with certain regions of the country more prone to calamity than others. So what disasters are the most common and how much do they cost? These videos breaks down the natural disasters by region...
|Source of data: OFDA/CRED International Disaster Database|
External Online Resources on Tornado
Find or contribute curricular, extra-curricular and public awareness materials on disaster prevention and school safety for primary, secondary, vocational, community-based education and public awareness.