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Comment by kevin_thibedeau | Hacker News Reader
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kevin_thibedeau
·
Doppler weather radar didn't exist in the 50's.
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cowboysauce
·
> The first known radar observations of a confirmed tornado were made at the Illinois State Water Survey on the 9th of April 1953.
http://www.chill.colostate.edu/w/CHILL_history#The_First_Tor...
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