ELI5- How does only 17″ of rain cause multiple feet of floodwater?

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My little girl is 7 and just isn’t wrapping her head around this and I need to find a better way to explain this.

She is so so smart because she saw the coverage of Helene, and heard 17″ and hot confused.

I told her the water runs from the high places to the low places, but then she asked why the water doesn’t leave the low places and why is it still flooded.

I’m bad at dumbing things down.

In: Planetary Science

17 Answers

Anonymous 0 Comments

It does drain from the low places, but its like draining a bathtub. The water can only flow away so fast depending on the gaps between high places and the kind of soil. If the rain is falling faster than it can drain,it will flood.

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