Clouds: Low:Clouds from the Earth's Surface to 6,500 feet. Stratus: Cumulus: Stratuscumulus: Scud:
Clouds: Middle:Clouds from 6,500 feet to 18,000 feet. Altostratus: Altocumulus:
Clouds: High:Clouds from the 18,000 feet to 30,000+ feet. Cirrus: Cirrostartus: Cirrocumulus:
Clouds: Verticle:Cumulonimbus: Thundercloud: Surface to 60,000+ feet. (CB)
Cloud Layer: Clouds at about the same height.
Cloud Movement: Direction the clouds are moving.
Cloud Nuclei:Dirt: Dust: Smoke: Salt: CO2: Soot:
Cloud Type: Clouds which are identified by using thw "WMO" cloud atlas.

Cloud Types............Contraction Altocumulus...............AC Altostratus...............AS Cirrocumulus..............CC Cirrostratus..............CS Cirrus....................CI Cumulonimbus..............CB Cumulonimbus Mamma........CBMAM Cumulus...................CU Cumulus Fractus...........CUFRA Towering Cumulus..........TCU Stratus Fractus...........STFRA Nimbostratus..............NS Stratocumulus.............SC Stratus...................ST

Coalescence Process: The process by which water droplts falling collied (Coalescence) and grow larger.
Col: A neutral area between two high pressure systems or two low pressure systems.
Cold Air: Moves towards warm air.
Cold Air: Is heavy and sinks. Will lift up warmer air.
Cold Air Advection: The horizontal transfer of cold air to warm air.
Cold Air Occlusion: When cold air overtakes and replaces warm air.

Cold Air Occlusion Symbol:

Cold Core Weather Systems: Weather systems with the lowest temperatures at or near the center and gain their energy from the temperature variations
within the atmosphere.
Cold Front: When cold air moves to replace warm air.

Cold Front Symbol:

Cold Sector: The area of cold air.
Comma Cloud A cloud pattern in the shape of a "Comma" associated with "Low Pressure.
Condense: To change from a vapor to a liquid.
Condensation Level: The height at which rising air becomes saturated.
Condensation Level: The height at which rising air becomes saturated.
Condensation Nuclei: Microscopic particles of dust, dirt, CO2, Salt, Etc Smoke which water vapor needs for condensation.
Contrails:Condensation fromed by the exhaust of an aircraft.
CP: Designated letters for a Continental Polar Air Mass:
Continental Polar Air Mass: Continental Polar Air Mass: "CP": An air mass which forms over Canada and is cold and dry.
CT: Designated letters for a Continental Tropical Air Mass:
Continental Tropical Air Mass: Continental Tropical Air Mass: "CT": Warm & Dry air mass that forms over the southwestern deserts of the United States.
Contour: A line connecting all points of the same elevation.
Contraction: Shortened word or acronyms used inplace of a word or phrase. EX. "RADAR"
Convection: Rising air currents.
Convergence:In the atmosphere when air converges it comes togethere and rises, moves counter-clock-wise, center seeking, creating "Low Pressure: "Centripetal Force".
Cyclonic Conditions: Expansional Cooling.
Cooling Degree Days: Cooling Degree days are based on a mean temperature of 65 Degrees.

To arrive at the mean temperature add the max and min temperature for the day, divide by 2 to get the mean or average for that day.
If the mean temperature is above 65 degrees than we have "Cooling Degree Days" for that day.

"Example"   Max  80
            Min  60
           ---------
           Mean  70  

Surtract 65 Degs which is the base temperature from the mean temperature of 70.  We now have 5 Cooling Degree Days for that day.