Quote:
Originally Posted by FrankJ
I am by no means an expert in this, but with enough rain to qualify as a flash flood, I would think the rain water would be pretty clean wherever you are.
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Quite the contrary. While in-place flash floods are possible when you actually have more than 6" of rain in 6 hours (e.g. here on the Gulf Coast), most flash flooding is the result of rapidly moving water. Rapidly moving water picks up silt, sand, and even rocks, houses, and bridges if it's moving fast enough. If you check out
the Wikipedia page on flash floods today, you will find three pictures. All of them show dirty water.