This is no substitute for training, but works as a reminder. I like having the Beaufort scale on there to check out the wind loading. New snowfall greater than 12 inches, any density. Wind loading greater than 15 mph. Storms that begin cold and end warm.
Rapid temperature rise during the day.
Prolonged period of above-freezing temperature. Intense sun, especially near cliff bands. Any combination of above. Slope must be facing same direction as suspect slope. Block fails as you isolate it or walk above it.