As you approach an airport to land, you observe a convective cloud over the airport with virga below it. This could indicate. The presence of a microburst.
A microburst is a small, confined column of sinking air (downdraft) that forms within a thunderstorm and typically has a diameter of less than or equal to 2.5 miles. Microbursts have the potential to kill people in some cases and cause significant surface damage.
A few elements, such as mid-level dry air entrainment, cooling beneath the thunderstorm cloud base, sublimation (which happens when the cloud base is above the freezing level), and the presence of rain and/or hail within the thunderstorm are what lead to the development of microbursts.
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