A hydrograph shows two graphs – a bar chart showing rainfall and a line graph showing discharge from before, during, and after the rain storm. As you can see in the graph below, the peak ...

A hydrograph shows how a river is affected by a storm. This helps to understand discharge patterns of a particular drainage basin and helps to predict flooding and plan flood prevention measures.

The same storm system delivered raging winds to the Plains states earlier, leading to wildfires and severe dust storms that left more than a dozen people dead in Kansas, Texas and Oklahoma.