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Move over polar vortex, there's an ominous new weather term in town.
Storm chasers captured video of a "gustnado" in Seward, Nebraska, on Tuesday. The weather event accompanied baseball-sized hail and reports of 12 tornadoes in Nebraska, Kansas, Iowa and western Wyoming.
A "gustnado" is a meteorological term for a weak, short-lived, tornado-like vortex produced by the heavy winds of a thunderstorm, according to Weather.com.
Gustnadoes "may be accompanied by rain, but usually are 'wispy', or only visible as a debris cloud or dust whirl at or near the ground," according to the National Weather Service.
Gustnado wind speeds can reach up to 80 mph and result in significant damage, although they are not considered tornadoes, according to the National Weather Service.
While tornadoes are possible across a large stretch of the Midwest and parts of the Mississippi River Valley Wednesday, gustnadoes are not expected, meteorologists predicted.