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Types of Fronts Now that we have learned the concepts of density,
we can better understand what fronts are and how they affect the weather.
1) Cold Front: A transition zone where cold/dry, and stable air, replaces warm/moist, and unstable air. It is depicted by a blue line with triangles pointing towards the direction of movement.
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Cold Front
WarmerTemperatures
ColderTemperatures 27
33
62
54
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Cold Front (Vertical Profile)
Rising Warm
air
AdvancingCold air
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Warm Front
55
62
WarmFront
WarmerTemperature
s
ColderTemperatures
45
38
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Warm Front (Vertical Profile)
Cold airWarm air
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Stationary Front
WarmAir
ColdAir
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Mapping Exercise
Draw and analyze a surface weather map for pressure and temperature, and draw the fronts that are indicated by these two variables.
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Pressure/Front Map
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Temperature/Front Map
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Wind direction
The wind barb (parts ff and dd combined) is like an arrow and points in the direction the wind is blowing.
The suffix -erly means the wind is blowing from that direction.
Here are a few examples of how to describe wind direction:
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Sky Cover
The total amount of clouds in tenths.
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Which direction is the wind blowing and at what speed?