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Washes, as in Arizona, fill with water when a huge thunder storm comes through. Those thunderstorms in Arizona, and other areas where you find washes, rain down buckets of water. The rainstorms are not little showers. There is so much water unloaded on the ground all at once that the gullies and washes fill fast and the water runs hard.

People who attempt to drive through these flooded washes are at risk of getting washed down the gully or killed from drowning. They seem like innocent washes but they are not. They are very dangerous because they fill with many feet of water withing thirty minutes. The ground is unable to soak up the water fast enough so the water builds to the danger point. After the storms are over it can take a week for the ground to soak up all the water and look like an innocent dry gully.

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14y ago

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