Which product is used for significant turbulence forecasting?

The GTG-2, or Graphical Turbulence Guidance version 2, is particularly used for significant turbulence forecasting. This product utilizes advanced numerical weather prediction models and incorporates real-time data to provide graphical representations of potential turbulence at various altitudes. It identifies areas of expected clear air turbulence (CAT) and turbulence associated with weather phenomena, which is crucial for flight planning and safety. Pilots and flight dispatchers rely on this information to anticipate and navigate around turbulence during flight operations.

While PIREPs, or Pilot Reports, provide valuable real-time information regarding actual turbulence experienced during flights, they are not used for forecasting. The Area Forecast provides predictions about overall weather conditions in a specific geographic area but does not focus solely on turbulence. AIRMET Zulu is a type of advisory that warns of moderate icing conditions and turbulence; however, it is also not a forecasting tool specifically designed for significant turbulence like the GTG-2 is.