A snowstorm; difficult times are ahead, but don’t worry—you’ll get through.
See Storm.
Depth Psychology: Sleeping in the snow: things from your unconscious will be known as soon as the “snow has melted.” People who are emotionally cold often dream of snow. Seeing a snowman may symbolize aging, or cold, frozen emotions.
A snowstorm: a warning of dangers and conflicts to come, which are made worse by your emotional coldness.