These dust storms are a common sight on the Tanana whenever it hasn't rained for several days.  The river's channel, mostly over a mile wide, consists mostly of vast bars of dry gravel and glacial silt that's easily kicked up by the wind. From the Tanana River in Alaska.
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These dust storms are a common sight on the Tanana whenever it hasn't rained for several days. The river's channel, mostly over a mile wide, consists mostly of vast bars of dry gravel and glacial silt that's easily kicked up by the wind.

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