What typically happens to visibility during the passing of a warm front?

When a warm front approaches, it brings a transition from cooler air to warmer air. As this occurs, the warm air rises over the cooler air, resulting in the formation of clouds and precipitation. Ahead of the warm front, visibility can deteriorate due to increasing cloud cover and precipitation, which may include light rain, mist, or fog. These conditions typically lead to a steady decrease in visibility as the front approaches and eventually passes.

After the front has passed, visibility may gradually improve as the precipitation diminishes and the air stabilizes. However, during the actual passing of the warm front, the trend is generally a consistent decrease in visibility. This phenomenon is a critical aspect of weather observations and forecasting, as understanding these visibility changes can impact travel and safety conditions.