Avalanche Problems are categories of avalanche activity. The Problems may not describe all avalanche activity you might observe, but they categorize the avalanches by how we manage the risk in the terrain. This approach focuses on relevant observations you can make in the field and how to treat the avalanche risk.
The forecasts list up to three current Problems, along with the spatial distribution, the likelihood of avalanches, and anticipated size. Forecasters provide specific details in a short paragraph.
This link has detailed descriptions of each problem and suggestions for risk treatment.