Definition of microburst
: a violent short-lived localized downdraft that creates extreme wind shears at low altitudes and is usually associated with thunderstorms
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Recent Examples of microburst from the Web
How bad have 2017's pop-up thunderstorms, microbursts and hailstorms been?
Wet microbursts are common in the South during the summer, according to the weather service.
The National Weather Service said the parameters will be in place for a few microbursts across north and parts of central Alabama.
The storm over Dallas on Monday was a wet microburst, as seen by the dark rain curtain spilling out of the cloud.
Another night of microburst skating is here, and time’s a-wasting.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microburst.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Credit for the invention of the word microburst is generally given to tornado expert Tetsuya Theodore Fujita. Fujita first described these extremely intense wind patterns in 1974. He noted that microbursts are usually short-lived, lasting only 5 to 15 minutes, but that they are extremely dangerous, especially for aircraft, because they cause sudden unexpected changes in wind direction or speed. Since the mid-1970s, many airports have installed Doppler radar systems to help detect potentially deadly microbursts.
First Known Use of microburst
Learn More about microburst
Britannica.com: Encyclopedia article about microburst
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