John Finley, 19th century tornado researcher
January 25, 2011 5:50 PM Subscribe
John Park Finley, American meteorologist, wrote the
first known book on tornadoes (
Tornadoes, 1887). Though some of his "safety" guidelines for surviving a tornado have since been refuted as dangerous (seek shelter on the side of a house facing an oncoming tornado!), the book remains a seminal work in tornado research.
View excerpts or download the entire book, courtesy of the University of Oklahoma. Highlights include
plans for a
tornado cave (costing under
$350),
geographic distribution, reports of
damage to 300 lb hogs, and
two references to what are probably the
first known photographs of a tornado.
Through
analysis of statistics, damage photos, and anecdotes about past storms, Finley was able to compile a list of
"rules" that could signal tornadoes. In 1884, The Signal Corps allowed Finley to issue trial tornado forecasts, but
the word "tornado" was banned from use for fear of public panic. Despite Finley reporting a
95.61%–98.65% degree of success, the experimental forecasts would end in 1886 (possibly due in part to opposition recalculating Finley's success rate for predicting tornadoes at only 23% -- Finley's original statistics were inflated by forecasts of non-tornado-spawning storms).*
Internal strife within The Signal Corps would eventually see Finley regulated to the records division, no longer involved in weather forecasting. After retiring from the military at age 64, he would move on to lecture about tornadoes and even provided insurance underwriters with storm risk assessments. In 1932, he opened the National Weather and Aviation School in Ann Arbor, Michigan. Finley would continue to teach meteorology at the school until he he retired for good in 1939. He would die 4 years later at the age of 89.
*One of Finley's supporters, Edward S. Holden, tried to implement a tornado warning system using telegraph poles. But it was overshadowed by a report by Henry A. Hazen, a civilian employee of the corps, who deemed that because tornadoes were "exceedingly rare" and very localized, it was impossible to pinpoint forecasts.
In addition to upholding the "tornado" ban for decades, The Weather Bureau (which assumed jurisdiction from the Signal Corps in 1890) remained skeptical of the value and accuracy of tornado forecasts. It took until 1943 for experimental warning systems to be implemented; a public outcry in 1952 (after a severe outbreak that killed over 200 people) finally helped formalize U.S. tornado research and forecasts.
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posted by jessamyn at 5:59 PM on January 25, 2011 [2 favorites]