Fronts card sortOnline version card sort for weather and fronts by Sonia Carrillo 1 Cold Front 2 Warm front 3 Stationary front 4 Occluded fronts 5 High pressure 6 Low Pressure Moves in the direction of blue triangles Cold, dense air is moving toward warm, less dense air. The warm air is pushed up to cool and form clouds as the cooler air replaces it. The air on the front side of the boundary line is warmer than the air on the back side of the boundary line. These fronts are usually fast moving and bring stormy weather and heavy precipitation Moves in the direction of red semi-circles Warm air is moving toward cold air. The warm, less dense air slides over the cold, more dense air. The air on the front side of the boundary line is cooler than the air on the back side of the boundary line. These fronts usually move slowly and bring steady rain or snow over many days. warm and cold air masses touching but not moving These fronts tend to stay in an area for a long period of time, often bringing long periods of precipitation and clouds. A warm air mass caught between two cold air masses These fronts cause strong winds and precipitation Signified with a blue H on a weather map Cooler, dense air sinking to the surface of the Earth Winds flowing in a clockwise direction Usually brings dry conditions and sunny, fair skies. Signified by a red L on a weather map Warmer, less dense air rising above the Earth’s surface Winds moving in a counterclockwise direction Usually brings cloudy, stormy weather