The flooding that displaced residents in 90 homes along the Kings River in the Central Valley over the weekend was more than a week in the making. For eight consecutive days last week, temperatures from Fresno to Bakersfield exceeded 100, according to the National Weather Service. Wildfires burned, utility providers warned of possible blackouts because of a surge in demand, and thousands of feet up in the Sierra Nevada — far from where humans and their scientific tools could reach — California’s historic snowpack continued to melt.