🔍 Key Concepts

• Cold front characteristics and how they interact with warm air masses • What happens when a faster-moving cold front catches up to a warm front • The definition and weather associated with an occluded front

💭 Think About

• Picture a cold air mass moving faster than a warm air mass ahead of it—what happens when the cold air catches up to that warm air? • Think about which type of front is associated with the warm air being lifted entirely off the ground by colder air on both sides. • Which of these front types usually forms later in the life cycle of a mid-latitude low-pressure system when fronts start to wrap around the center?

✅ Before You Answer

• Verify which front type occurs when cold air undercuts warm air and lifts it aloft. • Check which choice describes a front that forms when one front overtakes another. • Eliminate any front types that do not involve the interaction of two different existing fronts.