Forecasting the Weather Fronts. An Air Mass is a large body of air of relatively similar temperature and moisture. (humidity)

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Presentation transcript:

Forecasting the Weather Fronts

An Air Mass is a large body of air of relatively similar temperature and moisture. (humidity)

Air masses can control the weather for a period of time: from days to months. Most weather occurs along the boundaries of these air masses called fronts.

Cold Front = Stormy Weather

Warm Front = Rain & clouds

Warm Front

Warm Front = Rain & clouds

Occluded fronts are produced when a fast moving cold front catches and overtakes a slower moving warm front.

Occluded Front

Stationary fronts occur when a cold front and warm front meet and neither one advances. These type of conditions can last for days, producing clouds and no wind.

Stationary Front

Front Symbols

FrontBeforeDuringAfter Warm ColderRainWarmer Cold WarmerThunderstormsColder Occluded CoolPrecipitationColder Stationary No temp. change & no wind Clouds & rainNo temp. change & no wind