Forecaster are calling for a 10 to 20 inch rain potential over the next three days. That's more than any drainage structure is designed to handle, and the major flooding may soon be a possibility.
We've had some tropical systems over the years. Hurricanes were the worst, but even some weak systems stalled, or meandered, for days; and the result was widespread flooding.
I'm watching this one, and hoping the electricity stays on.