What are the characteristics of a stable air mass?
2. What are the characteristics of stable air? A—Good visibility; steady precipitation; stratus clouds.
Which of the following is a characteristic of stable air?
Explanation: The following are characteristics of stable air: stratiform clouds continuous precipitation smooth air poor visibility.
Which characteristic is related to stable air in the atmosphere?
Stable air masses are also characterized by smooth, undisturbed air. This quality can be seen mainly by pilots or air travelers. People flying through stable air masses will not experience violent turbulence or disturbances as they would in unstable air masses.
When an air mass is stable which of these conditions is most likely to exist?
When an air mass is stable, which of these conditions are most likely to exist? a heat exchange. What is indicated if ice pellets are encountered at 8,000 feet? They are nonfrontal and often contain severe, steady-state thunderstorms.
What are characteristics of stable air quizlet?
Explanation: characteristics of stable air: stratiform clouds, continuous precipitation, smooth air, poor visibility.
What does stable air mean?
• Stable air (parcel) – vertical motion is inhibited. – if clouds form, they will be shallow, layered clouds like. stratus. • Cloud Development – unstable environment.
Which air mass is more stable?
If warm air is over cold air, this is stable. If cold air is over warm air this is unstable. For this reason, tropical air masses are usually less stable than polar air masses.
What conditions cause a stable air mass quizlet?
Indicates stability: stability of the atmosphere is determined by vertical movements of air. Warm air rises when the air above is cooler. Cooling from below: surrounding air is warmer, which would increase the stability of an air mass.
What is a characteristic of stable air quizlet?
What is a characteristic of stable air? Stratiform clouds. Explanation: Stable air masses are calm; stratiform clouds are smooth and they do not build vertically like cumulus clouds.
What is associated with stable air?
Stable air means that the weather is likely to be calm. It may rain or snow slowly and steadily it may be sunny but the weather will not change quickly. Unstable air means that the weather might change quickly with very little warning. Unstable air leads to sudden thunderstorms.
What causes stable air?
Warming the air above the ground and/or cooling the air next to the ground will make the atmosphere more stable. The ground and the air above it cool during the night. The atmosphere is usually most stable early in the morning. A temperature inversion represents an extremely stable situation.
How can you determine the stability of an air mass?
To determine the stability of an air parcel, one compares its temperature to the temperature of the surrounding air mass. If the air parcel's temperature is less than the temperature of the surrounding air mass, it is denser than the surrounding air and therefore has a tendency to sink.
What is stable and unstable air?
Stable air means that the weather is likely to be calm. It may rain or snow slowly and steadily it may be sunny but the weather will not change quickly. Unstable air means that the weather might change quickly with very little warning.
How do you determine the stability of an air mass?
To determine the stability of an air parcel, one compares its temperature to the temperature of the surrounding air mass. If the air parcel's temperature is less than the temperature of the surrounding air mass, it is denser than the surrounding air and therefore has a tendency to sink.
What can be produced by a stable air mass?
Moist, stable air flowing upslope can be expected to produce stratus type clouds as the air cools adiabatically as it moves up sloping terrain. Rain falling through colder air may freeze during its descent, falling as ice pellets. Ice pellets always indicate freezing rain at a higher altitude, a temperature inversion.
How do you know if air is stable or unstable?
If the air comes back to where it started, the atmosphere is stable. If the air continues to rise the atmosphere is unstable. In the figure above the air in the parcel has ended up colder and denser than the surrounding air.
How do you know if a air is stable?
The clearest way to observe the difference between a stable and an unstable air mass is to look at the clouds: A stable atmosphere will have largely flat layers of cloud which, although they may exhibit some lumpiness, will not extend far upwards. There may be several such layers or occasionally, clear skies.
What’s the difference between stable and unstable air?
Stable air means that the weather is likely to be calm. It may rain or snow slowly and steadily it may be sunny but the weather will not change quickly. Unstable air means that the weather might change quickly with very little warning. Unstable air leads to sudden thunderstorms.