Landsat 8 captured a stark visual record of the extreme power unleashed by a recent EF-3 tornado in Mississippi, revealing a jagged tan line across the landscape where winds reached 137 miles per hour. The supercell storm produced multiple tornadoes on May 6, but one particularly intense system traveled nearly 82 miles in just over two hours, ranking it among the longest tornadoes recorded in the state. National Weather Service damage assessments noted a mobile home park and a home with collapsed exterior walls, illustrating the storm’s impact on communities. The Mississippi Emergency Management Agency reported damage to over 400 homes and dozens of businesses following the storms as of May 12, highlighting a potential increase in the frequency of tornadoes in the southeastern United States.
Landsat 8 Captures EF-3 Tornado Damage in Mississippi
Wind speeds of 137 miles per hour propelled the EF-3 tornado that carved a visible path across southern Mississippi on May 6, demonstrating the force unleashed during the severe weather event and placing it among the most intense storms recorded in the region. The destructive path, spanning five counties, was captured by the Operational Land Imager on Landsat 8 on May 12, revealing a distinct brownish track created by snapped trees and uprooted vegetation. This satellite imagery provides crucial documentation of the storm’s impact, complementing ground-based damage assessments conducted by the National Weather Service. Surveys revealed widespread tree damage and instances of EF-2 structural damage, as well as compromised transmission towers, along the 82-mile path. These details were specifically noted in post-event assessments, painting a stark picture of the impact on local communities.
While the Gulf Coast is not traditionally considered part of the region experiencing a high frequency of tornadoes in spring and late autumn, April historically averages more than seven tornadoes per month. Recent analyses suggest a potential shift in tornado patterns, with some data indicating decreases in the Great Plains and increases in the Southeast over recent decades.
May 6th Supercell Produced Long-Track Tornadoes
The landscape across southern Mississippi bears the visible scars of a severe weather event, with a pronounced tan line etched into the vegetation visible in satellite imagery acquired on May 12. This discoloration marks the path of a particularly destructive EF-3 tornado, one of several spawned by a powerful supercell storm that impacted five counties. This tornado sustained itself for an unusually long duration, traveling nearly 82 miles (132 kilometers) in just over two hours, a distance placing it among Mississippi’s longest-tracked tornadoes. National Weather Service surveys documented widespread damage along the entire path, including instances of EF-2 structural damage and collapsed transmission towers, with the most acute devastation concentrated in specific areas.
Researchers at NASA’s Earth Observatory are meticulously analyzing satellite imagery acquired on May 12, revealing not only the immediate devastation but also contributing to a growing body of evidence suggesting a geographical shift in tornado activity. Historically, Mississippi experiences an average of more than seven tornadoes in April, but May typically sees just over three, suggesting the recent event represents a deviation from established seasonal patterns.
Traditional ‘Tornado Alley’ shifts eastward as climate changes, says meteorologist studying trend.
Source: https://science.nasa.gov/earth/earth-observatory/tornado-draws-a-jagged-line-in-mississippi/
