Rain or snow falling into a dry layer will result in
evaporative cooling
Wet bulb temperatures are used to assess potential for evaporative cooling
Wet bulb cooling may influence precipitation type at the surface
Light rain or snow may evaporate before reaching the ground
(virga) if the air is too dry. In these
situations the radar may show precipitation but precipitation reaching the ground is very light or non-existent
To be a wet bulb sounding there must be the potential for lifting of saturated air aloft that
falls into the fairly dry air in the lower troposphere
EXAMPLE:
![[ Wet Bulb Sounding ]](../gif/wetbulb.gif)
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