Warm Front

Imagine you're at a crowded concert, trying to make your way to the front where it's warmer and more energetic, but there's a dense crowd in front of you that's standing still. Just like you slowly maneuver through the crowd, a warm air mass gradually moves over a cold air mass at a warm front, trying to take its place. In this analogy, you are the warm air, the crowd is the cold air, and the gradual transition from the back of the concert to the front mirrors how the warm air rises over the cold air, creating a boundary known as a warm front.
Practice Version

Warm Front: The boundary where a warm air mass moves over a cold air mass. Warm front. A warm front is when warmer air gradually slides over colder air, bringing gradual weather changes like light rain or milder temperatures.