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An air mass is said to be stable when the measured adiabatic lapse rate is inferior to that of the wet air, which is 0.5 C per 100 meter. It means that warm rising air will quickly cool down to an even temperature with the surrounding air; whether that air is wet or dry.

That happens e.g. in an inversion when the air aloft is warmer than near the surface. It can cause fog, which is saturated air, yet very stable.

Unstable air masses is when the measured lapse rate is superior to that of the dry air, which is about 1 C per 100 meter, twice that of wet air. When that happens, the warm rising air parcel never gets a chance to cool down to an even temperature and keeps climbing.

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When the environmental lapse rate is between the dry and moist adiabatic lapse rates conditions are described as what?

When the environmental lapse rate is between the dry and moist adiabatic lapse rates, conditions are described as conditionally unstable. This means that the atmosphere is stable when unsaturated and unstable when saturated, indicating the potential for convective storms to develop under the right conditions.


Which will NOT cause air to become unstable?

If the air is stable, it will not become unstable unless there is a significant change in the atmospheric conditions. Factors that might cause air to become unstable include temperature inversions, warm air rising over cooler air, or the presence of a lifting mechanism like a front or mountain range.


What three conditions are required for thunderstorms to form?

* Rising Unstable air * moisture * Air cools with an increasing altitude


Which condition below could make a layer of air more unstable?

An increase in temperature with height, known as a temperature inversion, could make a layer of air more unstable. This is because it creates a situation where warm air sits on top of cooler air, preventing mixing and leading to potential vertical movements and turbulence.


What does not cause air to become unstable?

Air does not become unstable due to uniform temperature and humidity conditions. Stable air typically has a consistent temperature gradient and lacks significant vertical motion, preventing the development of turbulence or convection. Additionally, the absence of strong wind shear or lifting mechanisms contributes to the stability of the air mass.

Related Questions

When the environmental lapse rate is between the dry and moist adiabatic lapse rates conditions are described as what?

When the environmental lapse rate is between the dry and moist adiabatic lapse rates, conditions are described as conditionally unstable. This means that the atmosphere is stable when unsaturated and unstable when saturated, indicating the potential for convective storms to develop under the right conditions.


What causes air to become more unstable?

what is the only way air can become unstable


Is it possible for thunderstorms to form if the lower troposphere is conditionally stable?

Yes. Fronts, topography, or converging winds force stable unsaturated air upward to the point that clouds develop. If the air is conditionally stable, the formed clouds can surge upward and heavy precipitation can develop.


What condition are necessary for the formation of the?

a warm, moist, and unstable air massa warm, moist, and unstable air mass


Is unstable air necessary for a thunderstorm to develop?

Yes, unstable air is necessary for a thunderstorm to develop. Unstable air is characterized by a rapid decrease in temperature with height, creating buoyant conditions that promote the rapid upward movement of air and the formation of thunderstorms.


Does unstable air is typical of cool winter air masses?

No


What is the difference between unstable and stable air?

. Unstable air, if lifted, will rise by itself without any forcing. Stable air, if lifted, will tend to sink back down.,


What does not cause air become unstable?

water


Which will NOT cause air to become unstable?

If the air is stable, it will not become unstable unless there is a significant change in the atmospheric conditions. Factors that might cause air to become unstable include temperature inversions, warm air rising over cooler air, or the presence of a lifting mechanism like a front or mountain range.


When is a air parcel considered unstable?

An air parcel is considered unstable when its temperature decreases more slowly with height than the surrounding air. This causes the parcel to continue rising on its own, leading to vertical instability in the atmosphere. Unstable air is associated with the potential for strong convective activity and the development of thunderstorms.


What are characteristics of a moist unstable air mass?

A moist unstable air mass is typically warm and holds a high amount of moisture. It is associated with conditions that are favorable for thunderstorm development, due to its ability to rise quickly and form clouds with significant vertical development. This air mass is often characterized by convective activity and the potential for severe weather events, such as thunderstorms, heavy rainfall, and sometimes tornadoes.


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Conditionally admitted