What type of weather phenomenon typically includes a rapid temperature drop leading to icing?

The phenomenon characterized by a rapid temperature drop leading to icing is best represented by cold fronts. Cold fronts occur when a mass of cold air moves in to replace a mass of warmer air. As the cold air advances, it forces the warm air to rise quickly, which can lead to abrupt changes in weather conditions, including a sudden drop in temperature.

This rapid descent in temperature can cause any moisture present in the warmer air to freeze, resulting in icing conditions. This is particularly dangerous, as it can lead to hazardous situations such as ice accumulation on roads, trees, and power lines. Cold fronts are typically associated with severe weather conditions like thunderstorms and can create a distinctive line of storms.

In contrast, warm fronts generally involve the lifting of warm air over colder air, which leads to a gradual warming trend rather than a quick temperature drop. Stable high-pressure systems often provide clear skies and calmer conditions, reducing the chances of dramatic temperature changes. Low-pressure systems with humidity can lead to precipitation and weather instability, but they don't directly correlate with the sharp temperature decreases associated with icing.