Figure 5

Spatial pattern of monthly frequency (average number of hourly events) of HDWs for 50-years (top) and 70-years (bottom) periods. Highest mean values were in July, June, and August, respectively. Stations in Kansas and Texas had the highest frequencies in summer months. The figure has been generated with ESRI-ArcGIS, version 10.6 (https://www.esri.com/arcgis/about-arcgis).