Tuesday, February 9, 2010

How To Read A Weather Map


Learning to read a weather map is important not just for the test but for everyday life!

1. Check for air pressure. Air pressure is the weight the air exerts on the ground. Low pressure systems will be designated with an "L" and high pressures with an "H". High pressure indicates calm clear conditions with little chance of precipitation. Low pressure systems mean increased cloudiness and chance of precipitation. Also pay attention to the isobars, this will show you have close/how much you will be affected by the pressure systems.
2. Observe the type and movement of fronts. A cold front is represented with a blue triangle line, warm front is a red circular line, and occluded (thunderstorms) is a mixture of both.

Ideally in my opinion, we would like a high pressure system with a warm front!

You can also note precipitation and snowfall in the diagram.

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