From the title page: "A 24-colour photograph guide to weather forecasting from the clouds, for use by farmers, fishermen, yachtsmen, golfers..., in fact anyone to whom the weather in the near future is of vital importance."

Each photograph is accompanied by a list of influences that can be observed in the photographs and an explanation as to prediction. Predictions are presented in tables listing wind, visibility, temperature, etc. and degree and timing of change.