Approximately 1,200 tornados hit the United States every year. Tornados most frequently occur between March and July, with May being the most active month. This year marks the five-year anniversary of a particularly intense tornado season that produced 1,691 tornados. The deadliest and costliest tornado in the United States’ modern history struck Joplin, Missouri during this season. The tornado track, the damage it caused, and the recovery that has occurred since has been captured by Terra’s Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER).
On May 22, 2011, a supercell thunderstorm in Joplin produced an EF-5 tornado with wind speeds faster than 320 kilometers (200 miles) per hour. While most tornados are barely on the ground longer than 10 minutes, this tornado lasted for a total of 38 minutes. In that time, the tornado covered 35.6 kilometers (22.1 miles), and in some areas reached 1.6 kilometers (1 mile) in width. The tornado claimed the lives of 158 people, injured over 1,150 others, and caused $2.8 billion in damage. The tornado damaged 30 percent of the city, destroying or severely damaging 7,000 homes, 500 businesses, half of the school district, and the St. John’s Regional Medical Center hospital. A total of approximately 2.3 million cubic meters (3 million cubic yards) of residential debris was produced. Click through the ASTER Level 1 Precision Terrain Corrected Registered At-Sensor Radiance (AST_L1T) images below to examine the area before the tornado, after the tornado, and what the area and tornado scar look like five years later.
ASTER’s visible and near-infrared data have 15-meter spatial resolution that can be used to detect a tornado’s path and determine the extent of damage; elements of a tornado that may not be recognizable from ground-level surveys.
Five years after the tornado, recovery efforts are still taking place in Joplin. There are 22 funds that were started to help the town and citizens recover from the tornado and for future major disasters. Within the first year of the tornado, Joplin received $39 million for recovery efforts. As of 2014, 90 percent of the homes and businesses that were destroyed by the tornado were replaced. Some of the structures that were rebuilt after the tornado, including the new Franklin Technology Center and the new Joplin High School can be seen in the April 9, 2016, ASTER image below.
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Material written by Danielle Golon1
1 Innovate!, Inc., contractor to the U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center, Sioux Falls, South Dakota, USA. Work performed under USGS contract G15PD00766 for LP DAAC2.
2 LP DAAC Work performed under NASA contract NNG14HH33I.