A folding pocket guide to clouds, storms and weather patterns.
Weather simply refers to the condition of the air on earth at a given place and time--whether it is warm or cold, dry or wet, blowing or calm. The condition of air and how it acts to create weather is influenced primarily by two things--heat (the sun) and moisture (water).
Weather on earth starts with the sun. The sun's heat warms our atmosphere and causes two things to happen: