So besides Armistice Day, 11-11-11 means something different to Okies and other central state Americans. November 11th, 1911, saw one of the most dramatic weather events of the modern era. It is the Great Blue Northern of 1911. The temperature in Tulsa dropped about 70 degrees in a few hours time. Read this and imagine what this was like. https://www.newson6.com/weather-blog...orther-of-1911