for all you people whot think you are realy smart try and answer this?

Question

you already know that High-pressure air is cold and low-pressure air is warm, so how can there be a high-pressure system coming bringing warm air?

Answer 1

The air in high pressure systems over the poles is cold. The air in high pressure systems with the sub-tropical ridge is hot. All the worlds major non-polar deserts in both the northern and southern hemispheres are under the sub-tropical ridge. The deserts through the southern USA, the Sahara, the Kalahari and the Simpson deserts are not usually thought of as cold places and yet they sit right under high pressure systems.

If you want an idea of temperature, look at where the air is coming from not at whether a high or low is close by. Air coming from the poles will be cold, air coming from the tropics will be hot. In any high pressure system you will have northerlies on one side and southerlies on the other so you will get both cold and warm air associated with any high.

Answer 2

Air moves from high to low pressure (you know this as wind) and warmer air is lower pressure, so the warm air in front of a high pressure system gets blown away, thus bringing the warm air from it to you.

Answer 3

I have never heard of any high pressure system bringing warm air. I think when the air gets warm, it rises up and the void thus created is filled up by the air from the surroundings. Thus a storm is caused.

Answer 4

Because that is not always the case. Remember this is an el-nino year which brings warmer air up from the equator to this hemisphere. As far as the high pressure system??? I just can't believe New York got 8 feet of snow, and we in Kentucky missed it and it's warming up here a bit.

Answer 5

Air tends to sink near high-pressure centers, which inhibits precipitation and cloud formation. This is why high-pressure systems tend to bring bright, sunny days with calm weather.

Air flows clockwise around a high-pressure system in the northern hemisphere.

As a result, regions to the east of a high-pressure center often have northerly winds bringing in relatively cold air while regions to the west have southerly winds bringing in relatively warm air.

Answer 6

First of all, I would like to make a clear point that I actually believe that there should be a higher atmospheric pressure when the air is hot than when the air is cold. This is because, from my knowledge, in hot air, there is a higher concentration of air particles, which allows collisions between air particles to take place faster (and which helps generating heat, and increases the pressure between the air particles). Conversely, in cold air, the density of air is lower and so that fewer collisions occur between the air particles (and hence there is a lower pressure).

Answer 7

I thought that High-pressure air was warm and low-pressure air was cold?

Answer 8

Garbage, mate.

The HP system brings settled weather, while the LP system generates moist frontal systems as warm air gets mixed with cold.

Therefore LP system (cyclonic) can be warm followed by a cold change as the frontal system moves over.

On the other hand, the HP system (anti-cyclonic) has calm clear skies, which can make things warm in the daytime (more sun) and colder at night (no clouds to keep the daytime warmth in).

I think you need to read a basic book on weather.

Answer 9

IMHO, you got it backwards: high-pressure air is warmer than low-pressure (the molecules travel faster, and collide more often, with high pressure, so more energy generated).

High pressure is needed at gas compressors to make a pressure differential, which is used to lead the gas in a specified direction.

More at the source below.

Answer 10

You sir are wrong. Heat expands = high pressure Cold contracts = low pressure.