What is the effect of snowy days on laser guidance and laser ranging?

Let's talk about the most important point of laser guidance and laser ranging. They all take advantage of the characteristics of laser. LASER is also light, and the English word "laser" of laser can explain its properties well. This is a compound word, that is, "stimulated radiation can amplify light" It is said that laser will also reflect and refract in snowy days, which will affect the accuracy of guidance and ranging, but laser Q-switching can effectively alleviate these effects. (This is explained from the aspect of popular science, so I won't go into details about other things that are too professional. )