Clouds
Billowly, low-level cloud with a flat base.
Cumulus Cloud
Area of the surface over which an air mass formed is the air mass's what?
source region
Liquid precipitation that freezes when it hits the ground.
Freezing Rain
When a liquid becomes a gas.
Evaporation
The movement of water from the air to the earth's surface and back.
Hydrologic Cycle
Mid-level cloud known for covering the sky and producing steady precipitation.
Nimbostratus Cloud
Type of air mass is cold and dry.
Continental Polar
State of the atmosphere at a certain time and place.
Weather
Through what process does frost form?
Deposition
When evaporation and condensation are occurring at the same rate, the air is said to be what?
Saturated
Type of cloud that has a low-level base and a top composed of ice crystals.
Cumulonimbus Cloud
Type of air mass forms over the Caribbean Sea.
Maritime Tropical
Ratio of the amount of water in the air to the amount of water in saturated air.
Relative Humidity
What increases the rate of condensation?
Cooler temps
The process of rain forming from melted snowflakes.
Bergeron-Findeisen Process
Least common type of high-level cloud.
Cirrocumulus Cloud
A frontal cyclone draws its energy from what?
Warm Air Mass
The temperature at which cooling air begins condensing.
Dew point
Scientific term for a gas becoming a liquid.
Condensation
A lens-shaped cloud that forms near mountains.
Lenticular Cloud
Mid-level clouds that have a puffy appearance and often appear as rows.
Altocumulus Cloud
Two unmoving air masses of different temperatures form what kind of front?
Stationary Front
Water vapor whose temperature has dropped below the freezing point is said to be what?
Supercooled
Process whereby plants release water into the atmosphere from their leaves.
Transpiration
What process is usually responsible for cloud formation?
Adiabatic cooling