What event caused widespread flooding in Texas and Oklahoma in May of 2015?

In May 2015, Texas and Oklahoma experienced severe flooding that caused significant damage and loss of life. The flooding was caused by heavy rainfall that resulted from a slow-moving storm system that hovered over the region for several days.

According to the National Weather Service, some areas received more than 20 inches of rain in a single week, which led to rivers and streams overflowing their banks and widespread flooding. The floods damaged thousands of homes, roads, and bridges, and caused millions of dollars in damage.

The flooding in Texas and Oklahoma was some of the worst the region had seen in decades. It caused more than 30 deaths and led to the evacuation of thousands of people. The state governments declared states of emergency, and the National Guard was called in to assist with the relief efforts.