A tornado does not have a spiral shape or appearance (except in some cases where helical subvortices form), but the winds in and near a tornado move in a spiral fashion.
The air in and near a tornado generally follows a spiral path as it moves inward and upward around the tornado's center of rotation. In some tornadoes, however, it is more complicated than this as there may be smaller subvortices embedded in the main vortex. The tornado itself usually moves in a fairly straight line.
The central region of a tornado where winds move in a circular pattern rather than an inward spiral is called the core. Some tornadoes will develop a strcutures that has been called an eye due to its similarity to the eye of a hurricane.
Since a tornado is columnar in nature its center is best defined as the tornado's axis of rotation, which also corresponds with the lowest pressure. The actual height of the midpoint varies with how high up the tornado extends, with stronger tornadoes usually extending further up into the parent storm.
Tornadoes take on a spiral shape because the winds in them spin and move upward. This is because tornadoes originate from the rotating updraft of a supercell thunderstorm. The updraft gets this rotation from wind shear.
A galaxy is a huge group of stars that form a spreading spiral. Our own Milky Way galaxy is an example of a spiral galaxy.
Winds in a tornado spiral inward and upward.
Tornado.
Tornadoes generally don't have a spiral shape. But the winds in and near a tornado always move in a spiral pattern.
Tornado Sirens going off
tornado
The square root spiral, as such, does not exist in the natural world.
A tornado usually forms from a large column of rotating air called a mesocyclone. A tornado therefore has quite a bit of angular momentum, so air spirals into the it.
The air in and near a tornado generally follows a spiral path as it moves inward and upward around the tornado's center of rotation. In some tornadoes, however, it is more complicated than this as there may be smaller subvortices embedded in the main vortex. The tornado itself usually moves in a fairly straight line.
It is also called a tornado!
A tornado forms from the rotating updraft of a thunderstorm. The updraft of the tornado creates low pressure that causes air to spiral inward (usually counterclockwise int he northern hemisphere and clockwise in the southern) and then upward.
On shells and plants. Many things in nature have it.
The opposite is true. Cyclones ave a spiral shape while tornadoes generally do not. In both a tornado and a cyclone, air spirals in toward a center of low pressure. A cyclone, however, is many times larger than a tornado. Therefore, variations in moisture and air temperature a few miles to a few hundred miles across can be contained within it. These variations give rise to variations in cloud cover, which get twisted into a spiral shape. Tornadoes, which rarely exceed a mile in diameter, are too small to contain such large-scale variations.