The term 'WEATHER FORECAST STAPLE' can be summarized as a MAP, which is a three-letter word. Maps are a common tool used to provide a visual representation of weather forecasts. They are often used to show the location of different weather systems, such as high and low pressure systems, and to illustrate the expected temperature, wind speed, and precipitation for a given area. Maps are also used to show the forecasted path of storms and other weather events.