preview

Tri-State Tornado Essay

Good Essays

Tornadoes are devastating atmospheric events that affect the ecology and the lives of people in their paths. Tornadoes are defined as “a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud” (Glossary of Meterology, 2011). The Tri-state tornado was the most deadly tornado in the United States. It stayed on the ground for a total of 219 miles through areas of Missouri, Illinois, and Indiana, killed a total of 695 people, and an estimated $16.5 million in damages (National Weather Service, 2011). Luckily, the tornado’s path was largely rural farmland with scattered small towns between them. <Add thesis> …show more content…

An Ef-5 tornado is one that causes “Incredible damage. Strong frame houses leveled off foundations and swept away; automobile-sized missiles fly through the air in excess of 100 meters (109 yds); trees debarked; incredible phenomena will occur” (NOAA, 2011). What kind of atmospheric conditions could cause such a violent, deadly twister? The forecast from the morning of March 18, 1925 just called for “rains and strong shifting winds.” Guess they were accurate in that sense. Well, in the 1920’s the weather records were pretty vague compared to today’s records. There wasn’t as much information being generated and the forecasts weren’t very specific. However, with today’s knowledge and with the records there were we can construct what was happening in the atmosphere (National Weather Service, 2011). A low pressure system was over Northwest Arkansas and Southwest Missouri moving towards the northeast. To the east of the low pressure system there was a warm front advancing north and a cold front trailing to the southwest. The temperatures recorded just before 1 p.m. was over 60o F. We can assume there was a 100-knot upper-level jet max moving from the west/southwest given the speed of the tornado. Wind shear was also present, helping with the rotation (National Weather Service, 2011). With these factors there was everything to make the perfect tornado. There is a

Get Access