Advanced, Site-Specific Warnings Aid Preparations Thanks to AccuWeather, railway leader BNSF recieves 41 minutes of advanced warning. Norman, Oklahoma, is the home of the largest concentration of tornado specialists in the world as well as the site of a busy rail line used by both BNSF Railway and Amtrak. When an F-3 tornado struck Norman on Friday, April 13, 2012 it was AccuWeather Enterprise Solutions that provided the first warn

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