SnowVisorSeparate three different ideas
Freezing level describes temperature in the air. Snow level describes the elevation where precipitation changes between rain and snow. Snow lying on the ground is another observation again: it reflects what has fallen and what has remained.
The Bureau of Meteorology uses snow level to describe the altitude above which precipitation falls as snow rather than rain. Its Australian forecasts express the chance of snow at an elevation, rather than promising an exact accumulation.
Why the transition is not a ruler-straight line
Snowflakes falling into above-freezing air do not melt instantly. The temperature profile, humidity and the snow crystals themselves affect the transition. You can encounter mixed precipitation over a band of elevations rather than a sharp boundary.
UBC’s snow-sports weather material makes this distinction between the freezing level and the rain–snow line. A rule of thumb may be useful for teaching the idea, but it should not be treated as a guaranteed offset for every mountain or storm.
Source: University of British Columbia: freezing level and rain versus snow
Compare heights using the same reference
A forecast height above sea level needs to be compared with a resort elevation above sea level. It is not the amount of climbing from the car park. Check the unit too: metres and feet are easy to confuse when planning an overseas trip.
Imagine a village at 1,200 m and an upper lift at 1,900 m. A changing forecast height between those elevations is a reason to inspect conditions at both places. It is not enough information to announce that the whole resort will receive the same kind of precipitation.
Read the trend alongside precipitation
In SnowVisor, review freezing level together with the forecast’s snow, rain, temperature and timing. A low freezing level without forecast precipitation is not a snowfall prediction. A changing height during a storm can be more relevant than the daily average.
Check current reports and webcams as the weather arrives. Use the official forecast wording for the region, especially where a provider defines its displayed height differently. Planning values should support a decision, not hide uncertainty behind a precise-looking number.