Final answer:
Rainfall associated with an advancing cold front is generally intense. Cold fronts occur when a mass of cold air displaces a mass of warm air, leading to the formation of clouds and precipitation.
Step-by-step explanation:
Rainfall associated with an advancing cold front is generally intense. Cold fronts occur when a mass of cold air displaces a mass of warm air, leading to the formation of clouds and precipitation. The collision between the two air masses causes the warm, moist air to rise and condense, resulting in heavy rain or snowfall. This phenomenon is often accompanied by strong winds and thunderstorms.