Dry Microburst - A microburst with little or no precipitation reaching the ground; most common in semi-arid regions. They may or may not produce lightning.
Recent research has shown that microbursts, both "dry" ones such as this (actually some very light rain may fall with a dry microburst) and "wet" ones frequently are the cause of wind shear induced aircraft accidents.
flash floods, hail ...
Dust
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: AFTN, Dry Microburst, Dust Devil, Dust Plume, Dust Whirl, Fugitive Dust, Whirlwind
Also listed in ...
Streaks or wisps of precipitation falling from a cloud but evaporating before reaching the ground. In certain cases, shafts of virga may precede a microburst; see dry microburst.
Virga from altocumulus.
Visible satellite image ...
WET MICROBURST
A microburst accompanied by heavy precipitation at the surface. A rain foot may be a visible sign of a wet microburst. See dry microburst.
It appears as wisps or streaks of rain or snow falling out of a cloud. As the precipitation evaporates, it cools the air and starts a down draft. In certain cases, shafts of virga may precede a microburst; see dry microburst.
of strong vertical wind shear, but ordinarily it results from the fact that droplet or crystal evaporation decreases the particle terminal fall velocity near the ends of the streaks. Under some conditions, virga are associated with dry microbursts, ...
 See also: Precipitation, Low, Storm, Wind, Cloud
  
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