What is tri state tornado?

The Tri-State Tornado, which occurred on March 18, 1925, was the deadliest tornado in United States history and the longest-lived and widest tornado ever recorded in the world. It is often referred to as the deadliest single day in US tornado history.

Here are some key facts:

• Date: March 18, 1925
• States Affected: The tornado traversed through Missouri, Illinois, and Indiana, hence the name "Tri-State".
• Death Toll: Approximately 695 people died. This number makes it the deadliest tornado in US history.
• Injuries: Over 2,000 people were injured.
• Path Length: The tornado travelled for approximately 219 miles (352 km), making it the longest continuous tornado path on record. The exact path length is still a subject of scientific debate due to the era in which it happened.
• Path Width: At times, the tornado was over a mile (1.6 km) wide.
• Forward Speed: The tornado traveled at an exceptionally high speed, averaging 62 mph (100 km/h), with bursts potentially exceeding 70 mph (113 km/h).
• Intensity: While it is impossible to know the exact intensity using modern scales, it is estimated to have been an F5 tornado (on the Fujita scale) due to the widespread and extreme damage it caused. Modern research suggests it was likely a violent, long-track supercell tornado.
• Lack of Warnings: In 1925, there was no organized system for tornado warnings. People had little to no advance notice of the approaching danger. The U.S. Weather Bureau (now the National Weather Service) had a policy against issuing tornado warnings, fearing it would cause panic.
• Impact: The tornado devastated numerous towns and communities along its path. Whole towns were flattened, homes were swept away, and infrastructure was destroyed. The economic and social impacts were devastating.
• Supercell: The tornado was produced by a supercell thunderstorm, a type of storm characterized by a rotating updraft (mesocyclone).
• Location: The storm's path started in southeastern Missouri, moved across southern Illinois, and dissipated in southwestern Indiana. Major cities and towns hit included Murphysboro, Illinois, and West Frankfort, Illinois.

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