A stationary front is a weather pattern that occurs when two air masses meet but neither is strong enough to replace the other. This results in a boundary that can remain in the same location for an extended period. Typically, one air mass is warm and moist, while the other is cooler and drier. As a result, stationary fronts can lead to prolonged periods of cloudy weather and precipitation, such as rain or snow. They often create conditions conducive to the development of storms, as the air masses interact along the boundary. Meteorologists use this information to predict weather changes associated with stationary fronts.