What does FA stand for in aviation weather forecasting?

In aviation weather forecasting, the term "FA" specifically refers to "Area Forecast." This is a structured meteorological product that provides detailed weather information, including expected conditions such as cloud cover, visibility, and precipitation over a specific geographic area for a certain period of time. Area Forecasts are crucial for pilots, as they help in planning flights and ensuring safety by informing about potential weather impacts on route and destination.

The other terms mentioned do not accurately reflect the standard terminology used in aviation meteorology. "Flight Area" and "Forecast Area" are vague and do not represent recognized products in weather reporting. "Flight Assessment" does not pertain specifically to weather forecasts at all, further clarifying that "Area Forecast" is the correct and relevant choice in this context.