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Apr 30, 2024 · Meteorologists at the National Weather Service use information from ground stations and weather satellites to make these maps. Words like “rain” and “snow” are pretty obvious, but what exactly do the symbols on a weather map tell you about the weather?
May 12, 2018 · There are a few things you will want to keep in mind. On American weather maps, temperatures are generally listed in Fahrenheit (this isn’t always the case, so be careful!), while maps from international sources will list temperatures in Celsius. The amount of cloud cover is indicated by the extent to which the center circle is filled in.
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- Zulu, Z, and UTC Time on Weather Maps. One of the first coded pieces of data you might notice on a weather map is a 4-digit number followed by the letters "Z" or "UTC."
- High and Low Air Pressure Centers. The large letters (Blue H's and red L's) on weather maps indicate high- and low-pressure centers. They mark where the air pressure is highest and lowest relative to the surrounding air and are often labeled with a three- or four-digit pressure reading in millibars.
- Isobars. NOAA Weather Prediction Center. On some weather maps, you may notice lines surrounding and encircling the "highs" and "lows." These lines are called isobars because they connect areas where the air pressure is the same ("iso-" meaning equal and "-bar" meaning pressure).
- Weather Fronts and Features. Weather fronts appear as different colored lines that extend outward from the pressure center. They mark the boundary where two opposite air masses meet.
Jun 25, 2020 · The weather map, also known as a synoptic (summary or overview) chart, is a simple representation of the weather patterns at the Earth's surface, showing the locations and movements of the different systems. Image: A typical weather map. What are the main features? Isobars are the plain lines curving across the map.
The weather maps are maps that tell you about the weather. In general, reading and understanding synoptic maps is easy and fun. However, such a maps are a bit more complicated than regular geographical maps, and a weather forecast you get in a form of tables, graphs and numbers.
Feb 14, 2017 · Lest take a look at this maps to examine fronts and various types and the weather they can bring. What is weather front? Fronts are boundaries between two air masses of different temperature and density. When two air masses meet, the warmer air rises above the cooler, dens air. Fronts are associated with an area of low pressure.
National Weather Maps. Surface Analysis. Highs, lows, fronts, troughs, outflow boundaries, squall lines, drylines for much of North America, the Western Atlantic and Eastern Pacific oceans, and the Gulf of Mexico.
