Steam devil
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A steam devil is a small, weak whirlwind over water that has drawn fog into the vortex, thus rendering it visible. They form over large lakes and oceans during cold air outbreaks while the water is st
Steam devils on Lake Michigan 31 January 1971, from the paper which first named and reported the phenomenon.
Landspout
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A landspout is a type of tornado not associated with a mesocyclone. The term was coined by atmospheric scientist Howard B. Bluestein in 1985. The Glossary of Meteorology defines a landspout as:
A landspout tornado in the early stages of development by the town of Lamar, Colorado
A landspout tornado forms from a developing thunderstorm near Cheyenne Wells, Colorado. Landspouts are exceptionally common in Eastern Colorado.
Landspout on 29 September 2007 in Minas Gerais