Noun
updraft (plural updrafts)
an upward current of air, especially a strong one
An updraft kiln has shelves that trap heat. Source: Internet
As the now un-powered aircraft completed its final descent, it could rise back into the air with the slightest updraft. Source: Internet
Dust devils form as a swirling updraft under sunny conditions during fair weather, rarely coming close to the intensity of a tornado. Source: Internet
Some cooling towers operate on this principle; similarly the solar updraft tower is a proposed device to generate electricity based on the stack effect. Source: Internet
As the updraft intensifies, it creates an area of low pressure at the surface. Source: Internet
Hailstones can be very large or very small, depending on how strong the updraft is: weaker hailstorms produce smaller hailstones than stronger hailstorms (such as supercells ). Source: Internet