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This large tornado funnel was filmed alongside a highway near the town of Fonda in Iowa late on Saturday.
It appears menacingly out of the darkness at each flash of lightning.
Although these drivers were unhurt, pictures from the area showed damage to homes, farm buildings, grains bins, power lines and trees.
A turkey farm was also destroyed by the storm. High winds tore apart a barn housing hundreds of birds, most which appear to have died.
The United States National Weather Service was on Sunday investigating reports of tornadoes in three north-east Iowa counties.
The same storm system spawned at least one tornado that tore through Mapleton in Monona County.
Footage from APTN.
8:58AM BST 11 Apr 2011
Source: The Telegraph