Eine Bilderbuch Roll Cloud gab es am vergangenen Montag über Virginia. (USA)




Quelle: Facebook

US National Weather Service Baltimore/Washington post on Facebook:

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An outflow boundary from the showers associated with the cold front produced a very well defined roll cloud that passed over our forecast office this morning just before 7:30 am. Here's a picture of it as it approached (moving toward the camera)... it was moving very fast! Did anyone else get to see this? *Picture from NWS Sterling

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