Surface Map

Surface map

A common weather map is the surface map, however it can be a complex map to fully comprehend. The first step to understand the surface map is to know the meaning of the symbols used on this type of map.

Cold Front Warm Front
The cold front symbol: It serves as a marker or a “boundary” between warmer air on one side and
colder air on the other.
The warm front symbol: This symbol represents the direction in which the warm air is likely to move towards.

Isobars on this sample map (fine gray lines) are analyzed lines of equal pressure values and are used to locate and identify the patterns and tendencies of atmospheric pressure. The high pressure symbol: H
The low pressure symbol: L

High pressure is associated more with fair weather conditions (light wind and less cloud cover), and Low pressure is associated with more active weather conditions.

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