Aviation Forecasts

General Icing Turbulence Low Level Jets The graphic area forecast (GFA) icing, turbulence and freezing level chart depicts forecast areas of icing and turbulence as well as the expected freezing level at a specific time. Included on the chart are the type, intensity, bases and tops of each icing and turbulence area. Surface synoptic features […]

General Synoptic Features Clouds Weather and Precipitation Visibility and Surface Based Layers Winds The graphic area forecast (GFA) clouds and weather chart provides a forecast of cloud layers and/or surface-based phenomena, visibility, weather and obstructions to vision at the valid time indicated. Relevant synoptic features that are responsible for the portrayed weather are also depicted,