I don't believe you really can. Experience is the best teacher.

I believe that we're also getting a "crying wolf" effect from warnings that claim "dangerous" conditions, but they either never come about, or individuals do not see the conditions first hand.

For example, with the local windstorm in the Northeast United States, plenty of warnings about "stay home" because of the risk of falling trees. More people out than you would expect, most driving way to fast (then again, the faster you go, the less time you spend in one place, thus hopefully reducing your chance of being hit by a falling object, but increasing your chance of hitting a stationary object. Oh, risks...) to be able to see downed power lines.