What does a 'TEMPO' forecast refer to in TAFs?

A 'TEMPO' forecast in Terminal Aerodrome Forecasts (TAFs) signifies a temporary weather condition expected to occur for a limited duration within the forecast period. This kind of forecast is used to indicate that certain weather phenomena, such as rain, fog, or thunderstorms, may briefly affect the area, but are not expected to persist throughout the entire forecast period. By highlighting temporary conditions, the 'TEMPO' forecast helps pilots and dispatchers prepare for and manage the potential impact of short-lived weather variations on flight operations, allowing for better safety and efficiency in planning.