Heat in York, Nebraska

A strong upper level ridge anchored across the central U.S. allowed for hot air to build into the region, and along with surface dewpoints in the upper 60s and lower 70s, made for muggy conditions. Heat indices across the area reached into the 100 to 110 degree range on the 23rd, which lead to the deaths of approximately 4000 head of cattle. The afternoon high temperatures reached into the mid to upper 90s, which was a change from the previous few weeks, where highs had generally been in the 70s and 80s. The cooler than normal high temperatures had prevented the cattle from properly shedding their winter coats, which aided in their overheating.