Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The soot on snow will absorb light, both visible and invisible, and become warm, warming the surround snow. Even below freezing (32 degrees F or 0 degrees C) a slight increase in temperature will assist the snow in evaporating or melting. The evaporation from solid state to gaseous state without turning into liquid is called sublimation.
