For Experts on Weather!!!!!!!!(Part 2)?

Question

I appreciate the help and I have some final things left:
1. Describe the general weather conditions associated with a high pressure area in terms of:
a)temperature
b) wind patterns
c)cloud development
d)precipitation

2. Describe the general weather conditions associated with a low pressure area in terms of:
a)temperature
b) wind patterns
c)cloud development
d)precipitation

This might be hard but:
Where is precipitation occuring relative to the continental polar and maritime tropical air masses?

Answer 1

"Where is precipitation occurring relative to the continental polar and maritime tropical air masses?"

Along the frontal boundary between the two air masses.

1. Describe the general weather conditions associated with a high pressure area in terms of:
a)temperature
b) wind patterns
c)cloud development
d)precipitation

You've got to differentiate between a dynamic high and a thermal high when it comes to temperature. In a thermal high the temperature will be incredibly cold (cold core). A thermal high would be the kind found over Siberia during the winter. In a dynamic high it will be warm/hot (warm core).

The wind is anticyclonic (clockwise).

The sky is generally fairly clear. This is due to the sinking motion in the atmosphere.

No precipitation generally, although in the summer if it's hot enough you can get "air mass" thunderstorms.

2. Describe the general weather conditions associated with a low pressure area in terms of:
a)temperature
b) wind patterns
c)cloud development
d)precipitation

Again, you need to differentiate between a dynamic low and a thermal low. A thermal low has a warm core. An example is the low over the Sonora and Mojave Deserts during the summer. A dynamic low has a cold core.

The wind is cyclonic (counter-clockwise).

The sky is generally fairly cloudy. This is due to the rising motion in the atmosphere.

Precipitation is generally associated with low persssure systems.

Answer 2

The pressure you are mostly getting to is called a ridge of high pressure. Depending on the amount of subsidence temperatures will get very warm or very hot. When air sinks it warms through a process called adiabatic and this causes the air to warm as it sinks. So temperatures generally will be warmer in a ridge of high pressure, but it depend merely the amount of subsidence that occurs in a ridge of high pressure. Winds are clockwise in high pressure because the central force of a high pressure pushes outward and acts with the Coriolis Effect. When the force acts together it’s called geotropic balance. Then the high pressure winds rotate clockwise. High pressure has inversions depending on the magnitude of subsidence. Strong subsidence will prevent clouds from forming or may allow a few clouds to appear, but not much. Precipitation in high pressures is certainly a no answer in most cases but no always. But if the air is really unstable and the high pressure inversions are weak, then showers can form. Usually in most cases high pressures about 85% of the time have clear skies.

Again the low pressure you are referring to is called a trough of low pressure. Low pressure troughs are usually cold and wet. They can bring stormy weather across the nation. A strong deep trough from the north can bring sub-freezing temperatures well below 0 degrees Fahrenheit. Low pressure turns counterclockwise because of the Coriolis Effect. The center is very weak the out force is stronger this leads to the air pushing inward. When this happens this causes the low pressure to produce counterclockwise winds. Low pressure has strong convergence and this lead to vast amount of rising air, which leads clouds and stormy weather. Low pressures usually produce precipitation, but not always. If the low pressure has weak lifting, then precipitation isn’t likely, but if the lifting is strong, then precipitation. The amount of moisture being entrained into the low pressure will determine if the precipitation will be heavy.

Maritime tropical and continental polar air masses can both produce precipitation, but in different processes. A continental polar air mass is very dry and very little water vapor is contained within the air mass. But in order for it to produce precipitation it must obtain more moisture. This kind of air is very common over the Five Great Lakes in the northeastern US. When this air mass moves over the great lakes, the warmer water gives off heat and moisture, and then the air mass is moist and unstable. This is the air mass that causes Lake Effect Snow in the northeast. Maritime tropical air mass is common during the summer over the southeast. This air mass is very capable of producing precipitation because it’s very rich in moisture and usually unstable. Thunderstorms and brief downpours of heavy rain is common within a maritime air mass. But if a strong ridge of high pressure is over the area, thunderstorm won’t form. Then the air mass will provide and uncomfortable hot, humid weather. As in matter of fact maritime air mass kills more people in a heatwave than continental tropical air mass. The reason is because maritime air mass is so humid it slows the evaporation for the human body, so the body loses the ability to cool down. The combination of heat and moisture is called the Heat Index Temperature.

Answer 3

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Answer 4

I am an expert on weather but I got that way by doing my own homework, I don't do other people's. There are many books in libraries and many pages on the web that will answer your question. Do your own research.

Answer 5

1. C
2. A

I'm pretty sure those are the right answers