What weather is typically associated with an advancing warm front that has moist, unstable air?

An advancing warm front that is accompanied by moist, unstable air typically leads to the formation of cumulus clouds and brings turbulent air conditions. As the warm air rises over the cooler air at the front, it cools, leading to condensation and cloud formation. In stable conditions, the air remains relatively calm and clear, but the presence of moist, unstable air indicates that the atmosphere is conducive to vertical cloud development, resulting in cumulus or cumulonimbus clouds. These clouds can generate turbulence due to the convective activity associated with instability, which can impact flight safety and weather patterns. Thus, this is why the choice highlights cumulus clouds and turbulent air as the characteristic weather associated with such conditions.