What is the warning for an avalanche?

Excuse me, could you please elaborate on the warning for an avalanche? I'm quite curious about the signs and indicators that precede such a dangerous natural phenomenon. Are there specific weather patterns or geological features that one should be aware of? Also, what kind of behavior should individuals engage in to ensure their safety in avalanche-prone areas? I'm particularly interested in the preventive measures that can be taken to minimize the risk of getting caught in an avalanche. Could you provide some detailed information on this matter?