Weather formation
Storyboard Text
- W is the art of predicting what willhappen in the future. In its simplest form, it's merely a matter of looking outthe window to see what types of clouds are around and which way they aremoving. Knowledge of local weather patterns can then allow fairly goodpredictions for the next 12 to 24 hours.
- Weather is made up of six components. These are temperature,atmospheric pressure, cloud formation, wind, humidity and rain. A small changeto see any of these conditions can create a different weather pattern.
- Every weather pattern has a knock-on effect, creating a ripple effect around the world. That’s why weather can sometimes seem chaotic.Its constantly changing.
- Weather is generated by many forces, some obvious, some not.Warm, humid air masses blowing in from oceans, for instance, fuel rains. Sunlight heats the land, generating thermals that help produce summer thunderstorms.
- Mountains and cities also affect the weather.
- In mountains this occurs because the wind must rise as it crosses over the ridge.This lifts the air, causing it to cool. That produces clouds, rain, or snow.
- This does not only raises the city's temperature, but it can affect the weather, producing thunderstorms in some cities or altering storm tracks in others.
- Cities, on the other hand, produce urban "heat islands"where roads, parking lots, and rooftops warm in the sun.
- One of the first things you probably do every morning is to look outside the window to see what the weather is like
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