High clouds usually above 18,000 feet. composed of ice crystals.
What is Cirrus
100
The boundary zone or transition layer between the troposphere and the stratosphere.
What is Tropopause
100
The line of equal constant temperature.
What is Isotherm
100
Often called the water cycle it is the vertical and horizontal transport of water in all its states between the earth, the atmosphere and the seas.
What is Hydrologic Cycle
200
Scale that classifies the severity of wind damage, degree of destruction, path, width and depth of destruction
What is the Fujita Scale
200
This cloud exhibits a combination of rain or snow, and sometimes the base of the cloud cannot be seen because of the heaviness of precipitation.
What is Nimbostratus
200
The lowest layer of the atmosphere located between the earth's surface to approximately 11 miles (17 kilometers) into the atmosphere.
What is Troposhere
200
A cyclonic storm occuring off the east coast of North America. These winter weather events are notorious for producing heavy snow, rain and tremendous waves that crash into Atlantic beaches often causing beach erosion and structural damage.
What is Nor'Easter
200
A force per unit mass that arises solely from the earth's rotation, acting as a deflecting force. It is dependent on the latitude and speed of the moving object in the Northern Hemisphere the air is deflected to the right and in the Southern Hemipshere to the left.
What is the Coriolis Force
300
The force per unit area exerted by the weight of the atmosphere above a point on or above earth's surface.
What is Pressure
300
A low cloud composed of layers or patches of cloud elements.
What is Stratocumulus
300
The layer of the atmosphere located between the troposhere and the mesosphere, characterized by a slight temperature increase and absence of clouds.
What is Stratosphere
300
The leading edge of an advancing cold air mass that is under running and displacing the warmer air in its path. Generally, when a cold front passes the temperature and humidity descrease, the pressure rises and the wind shifts from southwest to northwest.
What is Cold Front
300
Usually applied to the broad patterns of persistent winds with and easterly component, such as the easterly trade winds.
What is Easterlies
400
Any and all forms of water, liquid or solid that falls from clouds and reaches the ground.
What is Precipitation
400
A vertically developed cloud, often capped by an anvil shaped cloud. This is also known as a thundercloud.
What is Cumulonimbus
400
The lowest layer of earth's atmosphere, usually up to 3,300 or one kilometer, from the earth's surface, where the wind is influenced by the friction of the earth's surface and the objects on it.
What is Surface Boundary Layer
400
The combination of air temperature and humidity that gives a description of how the temperatures feels. This is not actually the air temperature.
What is Heat Index
400
The process of a solid (ice) changes directly into a gas (water vapor) or water vapor changing directly into ice at teh same temperature, without ever going through the liquid state.
What is sublimation
500
Used to measure the water vapor content of the atmosphere it consistss fo two thermometers, a wet bulb and a dry bulb.
What is Psychrometer
500
An abrupt lowering of a cloud from its parent cloud base, a cumulonimbus or supercell with no visible preciptation underneath.
What is Wall Cloud
500
An atmpspheric layer that contains a high proportion of oxygen that exists as ozone. It acts as a filtering mechanism against incoming ultraviolet radiation.
What is Ozone Layer
500
The calculation of temperature that takes into consideration the effects of wind and temperature on the human body.
What is Wind Chill Index
500
The cooling of an air flow as it ascends a hill or mountain slope. If there is enough moisture and the air is stable, stratiform clouds and precipitation may form. If the air is unstable there might be an increased change of thunderstorm development.