Construct, navigate, share and criticize knowledge models represented as concept maps. Sort by. Back Close. Free Only. Editor Rating. User Rating. Apply Filters. Understand general concepts of precipitation. What most people are concerned with is precipitation, which, in meteorology the study of weather , is any form of water that falls onto the Earth's surface.
Forms of precipitation include rain, hail, snow, and sleet. Recognize what a high pressure system is. A major aspect of weather interpretation involves being able to understand the actions caused by differences in air pressure.
High pressure implies dry weather. Thus, its heavier air falls downward and away from the pressure system's center, like water being poured onto the ground.
All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc. Understand what a low pressure system is. Low pressure is usually associated with humid air and in some cases, precipitation. Surrounding air draws inward toward the low system's center as the lighter air balloons upward, often causing clouds or precipitation because that moist air cools as it rises.
But droplets won't form if the glass is only slightly cool Clouds are simply water droplets that are small enough to be kept aloft. With very low pressure systems, storms are on the way if they aren't there already. Clouds begin to form and move across the sky -thunderhead clouds forming when moist air is thrust very high.
Sometimes tornadoes form when very high pressure air collides with very warm, moist low pressure air. Study a weather map. Watch out for one on the TV news, online, or in your local newspaper.
Other sources may include magazines and books, but they may not be current. Newspapers are a convenient method to find a weather map as they are cheap, reliable, and can be cut apart so you can carry them with you while learning to interpret the symbols. Analyze a small portion of your weather map. If possible, find a map covering a smaller area — these can be easier to interpret. Focusing on a larger scale may be difficult for a beginner.
On the map, notice the location, lines, arrows, patterns, colors, and numbers. Every sign counts and all are different. Part 2 of Understand what air pressure measures. This is the weight or pressure the air exerts on the ground and is measured in millibars. It is important to be able to read air pressure because pressure systems are associated with certain weather patterns. The average air pressure system measures mb A typical low pressure system measures around mb Learn the air pressure symbols.
Isobars play a major role in determining the speed and direction of wind. When the isobars form concentric closed but not always round circles, the smallest circle in the center indicates a pressure center. This can be either a high-pressure system depicted by an "H" in English , "A" in Spanish or a low pressure system depicted by an "L" in English, "B" in Spanish. Hence, wind direction is indicated by the isobars, counterclockwise around lows cyclonic flow and clockwise around highs anticyclonic in the northern hemisphere, thus creating wind.
The closer the isobars are to one another, the stronger the winds. Learn how to interpret a Low Pressure System Cyclone. These storms are characterized by increased cloudiness, winds, temperatures, and chance of precipitation. They are represented on a weather map by isobars that are close together with arrows traveling clockwise Southern Hemisphere or counter-clockwise Northern Hemisphere , usually with a "T" in the middle isobar, which forms a round circle the letter can vary, however, depending on the language the weather report is presented in.
Radar imagery can show low-pressure systems. Tropical cyclones South Pacific are also named hurricanes around America or typhoons in coastal Asia. Learn how to interpret a High Pressure System. These conditions indicate clear, calm weather with reduced chance of precipitation.
Drier air usually results in a greater range of high and low temperatures. Like cyclones, they can also be shown with radar imagery. Part 3 of Observe the types and movement of fronts. These mark the boundary between warmer air on one side and colder air on the other. If a tree is wider some nodes will be hidden.
If the box is filled with a dashed pattern the inheritance relation is virtual. A white box indicates that the documentation of the class is currently shown. A gray box indicates an undocumented class. A solid dark blue arrow indicates public inheritance. A dashed dark green arrow indicates protected inheritance. A dotted dark green arrow indicates private inheritance.
The elements in the class diagram in have the following meaning: A white box indicates a class. A marker in the lower right corner of the box indicates that the class has base classes that are hidden. If the box has a dashed border this indicates virtual inheritance.
Shaded areas denote articulations judged impossible. From Wikipedia, the free encyclopedia. Phonetic symbols with sounds. IPA help audio help full chart template. Accessed: 17 August Cambridge: Cambridge University Press. International Phonetic Alphabet chart. Co-articulated consonants Nasal.Use our diagram tool to edit this and see the various outcomes of your decisions. Tagged: flow,flowchart,business,workflow,flowchart multiple decision,decision flow diagram,decision flowchart,decision flow chart template,flowchart multiple decisions,multiple decision flowchart,flowchart,flow. Updated: 2 years ago.