Weather Map: Identify the Front Weather symbols also show where and what types of fronts are forming as air masses collide. Look at this review of fronts:

Warm fronts bring drizzly weather. 1 Opens in a modal popup window
Cold fronts can cause heavy rain, thunder, and lightning. 2 Opens in a modal popup window
Occluded fronts can cause light to heavy precipitation that may last several days. 3 Opens in a modal popup window
Stationary fronts may produce rainy or snowy weather that lasts several days. 4 Opens in a modal popup window
You can see the symbols meteorologists use to represent each type of front on this map. Notice how the circles and triangles usually point to the right. That’s because the weather moves from west to east.