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STORY: Foam whipped in from the North Sea covered the sea front area of Aberdeen in a layer of white on Sunday.
The phenomenon, reminiscent of a blanket of snow, was caused by a high volume of wave activity mixing together water, air and organic material, a marine ecologist told the BBC.
Buildings, cars and houses in the Footdee area of the Scottish city were coated in the substance.
Heavy rain and winds of up to 70mph caused travel disruption in Scotland on Tuesday, with fallen trees blocking some roads. The stormy weather has resulted in ferries being canceled and delays to rail services.