Tornadoes come from two types of thunderstorms called supercell and non-supercell. Tornadoes that come from a supercell thunderstorm are the most common, and often the most dangerous. Supercell thunderstorms form when there is a rotating updraft. “Only about 20% of all supercell thunderstorms, will actually produce a tornado” (Tornado Types). The other one is non-supercell thunderstorms. Non-supercell thunderstorms are circulations that do not form from an organized storm-scale rotation. These tornadoes form from a vertically spinning parcel of already occurring near the ground caused by wind shear from a warm, cold, or sea breeze front, or a dryline. Eastern Colorado experiences these non-supercell tornadoes, when cool air rushes down off the Rocky Mountains and collides with the hot dry air of the plains. One type of tornado that a non-supercell thunderstorm creates is a gustnado. A gustnado is a whirl of dust or debris at or near the ground with no condensation funnel, which forms along the gust front of a storm. Another type of tornado is a landspout tornado. A landspout is a tornado with a narrow, rope- like condensation funnel, that forms when the thunderstorm cloud is still growing, and there is no rotating updraft. A rotating updraft is the spinning motion that originates near the ground. Another type is a waterspout which is similar to landspouts, except that they occur over water. All the damage from these tornadoes …show more content…
In July of 1643 a guy by the name of Governor John Winthrop was the first man to describe a tornado (“Tornado History”). He first described this in the state of Massachusetts. Winthrop described this tornado as a sort of a wind gust, that came out of nowhere. According to Winthrop this gust blew down trees, filled the air with dust, lifted up a meeting house in Newbury, and killed one Indian (“Tornado History”). This was the first time someone has ever described a tornado. Although scientists did not begin to study tornadoes until the mid 1900s (“NOAA National Severe Storms Laboratory”). To scientists tornadoes are still mysteries and we have lots to