Texas and Oklahoma face a fifth straight day of 100-degree weather. Wichita Falls and the Texoma region stay in the triple digits. People and officials there deal with the persistent heat. Relief will come soon. Forecasts show a cooling trend moving in. Temperatures should drop and end the extreme heat streak. The area continues to suffer a prolonged heatwave. Local authorities are responding to the challenges. Weather models indicate a shift in the pattern. Cooler air should begin soon. The streak should conclude with the extended warm spell.