An unstable air mass is where warm and cold air meet. A boundary forms between them. the cold air Mass may slide under the warm one and lift up weather that becomes unstable. That could mean that a storm is coming
Unstable air means that the weather will change quickly with little to no warning. Thunderstorms are caused by unstable air.
usually unstable air leads to thunderstorms
Cumuliform clouds and showery precipitation.
moist,smooth,or,cool
Turbulence and good surface visibility.
Atmospheric instability is a condition where the Earth's atmosphere is unstable due to a high degree of variability through distance and time. The greatest atmospheric instability occurs in an air mass that is warm and moist.
unstable, moist air.
A cold air mass is a mass of air that has colder characteristics than the surrounding air.
Warm and moist
maritime tropical
a warm, moist, and unstable air massa warm, moist, and unstable air mass
A maritime polar air mass is characterized as a cold and moist air mass.
A maritime polar air mass is characterized as a cold and moist air mass.
A maritime polar air mass is composed of cold, moist air.
cool moist air
Atmospheric instability is a condition where the Earth's atmosphere is unstable due to a high degree of variability through distance and time. The greatest atmospheric instability occurs in an air mass that is warm and moist.
unstable, moist air.
unstable, moist air.
A cold air mass is a mass of air that has colder characteristics than the surrounding air.
Conditions that favor the formation of supercells, the storms that produce most tornadoes include:Warm moist air in the lower troposphere.Cool air in the upper troposphere.A layer of warm air about a mile above the groundStrong wind shear, especially at lower levelsA source of weak to modest lift, usually from a cold front, dry line, or cyclone.Tornadoes, especially strong ones, are most likely to developif the relative humidity is high enough to produce a low cloud base.
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No single air mass "causes" tornadoes. This is Tornadoes form within thunderstorms. Thunderstorms form best when there is plentiful warm, moist air. So, a arm, moist air mass is usually present. Significant tornado activity, however, usually results from the thunderstorms that form near the boundaries between air masses. Usually where a warm, moist air mass meets a cooler or drier air mass.