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Anniversary of First Hook Echo Tornado Captured on Radar [April 09, 2015] CHAMPAIGN - Today is the 62nd anniversary of the first documented case of a tornado detected by radar. Illinois State Water Survey staff captured the historic event on film on April 9, 1953. This discovery helped lead to the first national weather radar network in the United States, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois. |
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