from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An extremely powerful downward air current from a cumulonimbus cloud, typically associated with thunderstorm activity.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A powerful downward air current, especially one during a thunderstorm.


Sorry, no etymologies found.


  • Though not an official finding, Environment Canada said they are fairly confident a downburst was the trigger for the collapse of the main stage 20 minutes into a performance by Cheap Trick.

    CBC | Top Stories News

  • A downburst is the outflow from a thunderstorm that is characterized by a massive downward airflow creating immense hazards for aircraft - a severe downburst can swat even the most powerful aircraft from the sky and create a tragedy.

    Soaring on Ridgelift

  • Authorities said a strong downburst of wind apparently overturned a mobile home, killing a 64-year-old woman in St. Francis County, in eastern Arkansas.

    Powerful spring storms kill 9 in Ark., Okla.

  • This intensification may have been aided by the rear-flank downburst.

    Eight years ago: Tornado devastates La Plata, Md.

  • Something just shy of anger erupted, and we soon knew what was in store for us when the plane got tossed from the sky by a sudden downburst from a supercell thunderstorm that appeared in just minutes out of a clear, blue autumn sky.

    365 tomorrows » 2008 » June : A New Free Flash Fiction SciFi Story Every Day

  • Another thing that could have happened, as the plane came down and was landing and doing a very nice roll down the runway, rather than wind coming in here, if there was a downburst of a thunderstorm, and that blew the plane this way, you get an 45 - or 50-mile-per-hour wind blowing you down the runway, you don't get to stop in time.

    CNN Transcript Dec 23, 2009

  • So, we have that rapid downburst of cold air coming down as the warm, moist air condensed in the thunderstorm, it comes in contact with drier, cooler air aloft, that air is heavy and dense and it falls fast.

    CNN Transcript May 3, 2009

  • So 70 mile per hour winds could suddenly become 90 miles per hour just near the surface as the downburst comes down.

    CNN Transcript May 3, 2009

  • Let me tell you, this tree survived the wicked 100 mile per hour downburst straight-line winds in storms at the end of May, 1998 and the end of May, 1999.

    Archive 2008-06-01

  • Bad storm here yesterday unbelievable downburst winds up to 70mph occured for about 15 minutes messed up my yard with snapped off branches from trees more global warming evidence?

    Think Progress » Fox News: “Are ‘Scoops’ More Important To Media Than Stopping Terror?”


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