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Fronts and Weather Maps Unit 3: Weather and Climate Ms. Thind

Fronts Transition zones of different densities that area most often caused by temperature changes. 1) Stationary Fronts 2) Cold Fronts 3) Warm Fronts 4) Occluded Fronts

Stationary Fronts No movement Warm or cold front stop moving

Cold Fronts Transition zone where cold air mass advances and replaces a warm air mass

Warm Fronts Transition zone where warm air mass replaces a cold air mass

Occluded Fronts Cold front takes over warm front and one of the two fronts is lifted a) warm occluded front b) cold occluded front

Meteorology Concerned with the observation and recording of weather phenomena Concerned with the prediction of the future state of the weather by the application of scientific principles.

Weather Stations Located in a variety of places, usually in major centers of population, isolated Arctic islands, patrol ships at sea, on top of mountains Responsible for: observing and recording the state of the atmosphere Observations made 4 times a day at the same time

Weather Stations Weather information: - air temperature - air pressure and the amount it changed since the last observation (3 hours ago) - amount of precipitation and type since the last observation (3 hours ago) - direction and speed of wind - type, height, and amount of clouds - visiblity