What types of air advances at a warm front?

At a warm front, warm, moist air advances over cooler, denser air. As the warm air rises, it cools and condenses, leading to cloud formation and often resulting in steady precipitation. This gradual lifting of warm air can create extensive cloud cover and prolonged rain, typically associated with a warm front. The transition may also bring a noticeable change in temperature and humidity as the warm air replaces the cooler air.