gustnado

These intermediate types include the gustnado and the fire whirl.

An extreme example of this phenomenon looks almost like a tornado and is known as a gustnado.

Four tornadoes were reported across northern Germany and the Netherlands, one of which may have been a gustnado.

The result is a gustnado.

The most common setting for a gustnado is on the outflow from a severe thunderstorm (58+ mph winds).

A gustnado is a specific type of short-lived, low-level rotating cloud that can form in a severe thunderstorm.

The average gustnado lasts a few seconds to a few minutes, although there can be several generations and simultaneous swarms.

However, unlike tornadoes, the rotating column of air in a gustnado usually does not extend all the way to the base of the thundercloud.

At the most, the storm was something the weather service called a "gustnado," the tornado's weaker cousin, said Bill Jacquemin, a meteorologist.

Other tornado-like phenomena that exist in nature include the gustnado, dust devil, fire whirls, and steam devil.

A gustnado, or gust front tornado, is a small, vertical swirl associated with a gust front or downburst.

While a tornado is formed from a thunderstorm system, Mr. Jacquemin said, a gustnado often forms from shifting winds at the leading edge of a cold front.

There is some speculation that a gustnado might be responsible for the collapse of a stage at the Indiana State Fair on August 13, 2011 which killed 5 people.

Although "gustnado" has yet to enter accepted weather nomenclature, the term is popular in the Great Plains and Midwest of the United States, where the phenomenon is most common.

At approximately 4:54 a.m., the storm crossed the Ohio border and entered the Addyston area of Cincinnati's West Side, where the storm was thought to be only a gustnado.

The friction from this interaction creates a spinning column of air, or eddy, which can create a gustnado (to get the general idea of this, picture an area of leaves swirling on a windy day, just on a much larger scale).

Sometimes referred to as spin-up tornadoes, that term more correctly describes the rare tornadic gustnado that connects the surface to the ambient clouded base, or to relatively brief tornadoes associated with a mesovortex, as indicated by example of the April 3rd, 2011 powerful gustnado(s).