This animated map shows the ebb and flow of tornado migrations in the continental United States. Using data from NOAA's Storm Prediction Center, we aggregated over 50 years of tornado events from 1950 to 2018 broken down by month to create a map that seems to breathe as the patterns ebb and flow with the seasons. Animated data draws focus beyond individual hexes to the aggregate effect of the hexes synchronizing, blooming, and changing in waves. Based on John Nelson's Tornado Tree Ring map: http://ow.ly/vqNR50wI5mm This animated map was made using Esri's ArcGIS Pro, Cinema 4D, Redshift, and Adobe After Effects. Please visit http://ow.ly/fm2950xgu0B for more information about ArcGIS Pro. Data source: https://www.spc.noaa.gov/gis/svrgis/ Music: Bring to Light by Max H. --------------------------------------------------------------------------------------------------- Follow us on Social Media! Twitter: https://twitter.com/Esri Facebook: https://facebook.com/EsriGIS LinkedIn: https://www.linkedin.com/company/esri Instagram: https://www.instagram.com/esrigram The Science of Where: http://www.esri.com