When the temperature is below freezing from the surface to the 500 hPa pressure level, which precipitation type would be expected?

Question

Quizplus · Accepted Answer

In order for snow to form, the temperature must be below freezing from the surface to the cloud level where ice crystals form. If the temperature is below freezing all the way up to 500 hPa (which is around 18,000 feet), then it is highly likely that snow would be the precipitation type.

When the Temperature Is Below Freezing from the Surface to the 500