WATCH: Polar Vortex brings visual vortex to Lake Hefner


OKLAHOMA CITY (KFOR) – With warm water underneath and cold air on top, a steam vortex could be seen rising off of Lake Hefner Monday.

‘Steam devils’ form over large bodies of water during cold air outbreaks while the water is still relatively warm.

While some rivers and lakes in the state froze over with the arctic blast, others built up fog through the bitter cold.


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