What is a weather map?
- Tiffany Means is a meteorologist and member of the American Meteorological Society who has worked for CNN, the National Oceanic and Atmospheric Administration, and more. A weather map and its symbols are meant to convey a lot of weather information quickly and without using a lot of words.
- High and Low Pressure Areas. Earth’s atmosphere is a jacket of gases that surrounds the planet. Although it seems like these gases could easily float away into space, gravity is constantly pulling the atmosphere toward Earth’s surface.
- What it Means on the Weather Map. Low pressure systems—like this one in the Tennessee valley—can cause the formation of clouds and storms. A high pressure system is a dense air mass that is usually cooler and drier than the surrounding air.
- High and Low Pressure Systems: From Space. From high above Earth, satellites such as GOES-16 keep an eye on the weather brought by low pressure systems.
- Cold Fronts and Warm Fronts. A warm front is the transition area where a mass of warm air moves to replace a mass of cold air. On a weather map, a warm front is usually drawn using a solid red line with half circles pointing in the direction of the cold air that will be replaced.
Nov 18, 2021 · Blue lines with triangles on one side represents cold fronts on weather maps. The direction the triangles point is the direction in which the cold front is moving. 3 Analyze a Warm front. These often bring a gradual increase in rainfall as the front approaches, followed by prompt clearing and warming after the front passes.
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Satellite images are very useful tools for determining cloud patterns and movement of winter storms. By looping a series of satellite pictures together, forecasters can watch a storm's development and movement. Radar is critical for tracking the motion of precipitation and for determining what kind of precipitation is falling.
3. Surface wind 'leaks' across the isobars towards lowpressure, by about 15 to 20 degrees over the open sea, but by as much as 30 to 90 degrees over and around land. This time, the red arrows show the wind directions as they are more likely to be - gently flowing across the isobars towards lower pressure. 4.
After identifying each of the symbols used on a weather map, students will use a map to answer questions about weather and climate in the United States. This is an excellent supplement to a lesson or unit on weather, earth science, or climate change. It can be completed in class, or assigned for independent study. Subjects: Science Weather Map