updraft

American  

[uhp-draft, -drahft] / ˈʌpˌdræft, -ˌdrɑft /

noun

1. the movement upward of air or other gas.

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updraft Scientific  

/ ŭp′drăft′ /

1. An upward current of warm, moist air. With enough moisture, the current may visibly condense into a cumulus or cumulonimbus cloud.

2. Compare downdraft

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Etymology

Origin of updraft

late Middle English word dating back to 1400–50; up-, draft

Example Sentences

“When stocks are blasting skyward, even the most steadfast can be sucked into the updraft. When they are cascading downward, keeping one’s cool is almost impossible.”

From MarketWatch

But the leathery wings caught an updraft, and with a sudden rush Tiamat began to soar upward.

From Literature

For a moment, the hat catches an updraft caused by the rush of cars, and it rises.

From Literature

Even worse, the heat generated could create an updraft, carrying any radiation that was released high into the atmosphere, where it could travel for miles before coming back down.

From Literature

That happens when a sudden updraft in humid, moist air leads to a heavy and localised burst of rain.

From BBC