AS200 Chapter 2 Lesson 2

What areas make the ideal source regions?

Which is NOT a category of air mass?

What outside factors shape air masses?

What happens when an air mass passing over a warmer surface is warmed from below?

What can summer temperatures do to an otherwise cold, dry (cP) air mass traveling south from a northern region?

What type of circulation takes place in the northern hemisphere when the flow of air from areas of high to low pressure swerves to the right to produce a clockwise circulation around a high pressure area?

Why do low pressure systems often bring in bad weather with increasing cloudiness and precipitation?

What are two factors that can change wind direction and speed close to earth's surface>

What happens when high and low pressure systems meet in fronts?

What type of front produces the most dramatic wind shift?

What clouds are you likely to see after the passage of a warm front?

What direction do cold fronts normally take in the northern hemisphere?

A meteorologist observes stratocumulus clouds commanding the sky with rain showers possible. Visibility improves but conditions seem to be remaining hazy. The wind is blowing from the south-southwest. As the temperature climbs, the dew point also rises and then levels off. Finally, the barometric pressure rises just slightly only to fall again. What type of front and what stage of that front has the meteorologist just observed?