What does "FV" denote in weather advisories?

The designation "FV" in weather advisories specifically refers to a forecast for variable winds. In meteorology, wind conditions can greatly affect various activities, especially in aviation and maritime operations. When forecasters indicate variable winds, it suggests that the wind direction may change frequently and may not adhere to a consistent pattern.

Understanding variable winds is crucial for planning flights and maritime navigation, as the variability can impact safety and operational efficiency. Since "FV" is directly related to these changing wind conditions, it plays a significant role in preparing pilots and mariners for the potential challenges posed by such weather patterns.

Other possible interpretations of "FV" could relate to various aspects of visibility or flight conditions, but those do not align with the specific use in weather advisories.