Adiabatic Temperature Changes
Happens when air is compresses or expanded.
When it expands it cools and when it compresses it
As you travel up in the atmosphere the atmosphere
pressure decreases because there are fewer and fewer
When elevated terrains act like barriers for air to flow.
If air descends, it warms adiabatically, then it makes
condensation and precipitation even less likely.
Associated with specific storms called middle-latitude
Cooler, denser air acts as a barrier over the warmer, less
dense air that rises.
Air in lower atmosphere flows together.
Florida experiences the greatest number of mid-
Localized Convective Lifting
On warm summer days, unequal heating of the Earth’s
surface may cause pockets of air be warmed more than
the surrounding air.
Stable air tends to remain in its original position, while
unstable air tends to rise.
Measured by the temperature of the atmosphere at
Air must be saturated.
Water vapor in air turns to liquid.
Occurs at dew point.
Types of Clouds
Classified by their form and height.
3 types: Cirrus, Cirromulus, Cirrostratus.
Cirromulus consist of fluffy mass.
Cirrostratus clouds are flat layers.
Altocumulus clouds consist of a rounded mass, larger
Clouds of Vertical Development
Bases are in low height range but extend upward.
They are all related and have unstable air.
Fog ( by cooling and by
Fog is a cloud with its base at or very near ground.
Fog can form on cool, calm, clear nights.
Cold Cloud Precipitation
Bergeron process relies on two physical processes:
supercooling and supersaturated.
Liquid below 0 degrees Celsius is said to be
Warm Cloud Precipitation
The thing that forms raindrops is called the collision-
As the raindrops move they join together with smaller,
Rain and Snow
The term rain means droplets that fall from a cloud
and a diameter of at least 0.5 mm. (smaller droplets are
At very low temperatures light, fluffy snow made up of
6 sided ice crystals.
Sleet, Glaze and Hail
Sleet is the fall of small particles of clear ice.
Glaze also known as freezing rain happens when
raindrops become supercooled.