a waterspout
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Several waterspouts filmed on US lake

Some unusual weather conditions in the US have led to a series of waterspouts on Lake Michigan.

Some unusual weather conditions in the US led to this rare sight on Lake Michigan.

As many as nine waterspouts were reported. It is especially unusual to have so many close together.

The cause, is a clash of cold and warm temperature fronts.

Waterspouts are tornadoes that form over water.

Naga Munchetty reports.