Kearney Hub: The heart of America was colored in dark shades of red reflecting extreme to exceptional drought on the Sept. 11, 2012, National Drought Monitor map Don Wilhite showed on a screen Friday morning at the Nebraska Farmers Unions 101st-annual convention in Kearney. The summer of 2012, McCook had 37 days with high temperatures of more than 100 degrees, compared with a long-term average of around 11 days. Groundwater levels in some areas of Nebraska dropped 5 to 12 feet. What the models say is by the...