sky cover - In surface weather observations, a term used to denote one or more of the following: 1) the amount of sky covered but not necessarily concealed by clouds or by obscuring phenomena aloft; 2) the amount of sky concealed by obscuring ...
Sky Cover - a term used to describe the amount of sky covered or concealed by clouds or obscuring phenomena. Classifications for sky cover include clear, broken, partly cloudy, and overcast.
SKY COVER The amount of the celestial dome that is hidden by clouds and/or obscurations.
Sky Cover- The amount of the sky which is covered by clouds or obscurations in contact with the surface.
Sky cover (/SK) is used to report the cloud layer amounts and the height of the cloud base. The tops of the cloud layers can also be included as can more than one layer of cloud. Heights are in hundreds of feet above sea level and are three digits.
obscured sky cover"Same as obscuration.
obscuring phenomenon"(Also called obscuration.) Any collection of particles, aloft or in contact with the earth's surface, dense enough to be discernible to the observer.
An official sky cover classification for aviation weather observations, descriptive of a sky cover of 1/8 to 2/8. This is applied only when obscuring phenomenon aloft are present--that is, not when obscuring phenomenon are surface-based, such as fog.
The amount of sky cover for a cloud layer between 5/8ths and 7/8ths, based on the summation layer amount for that layer.
BUBBLE HIGH ...
That portion of the sky cover that is attributed to clouds, usually measured in tenths or eighths of sky covered.
CO ...
SCATTERED The amount of sky cover for a cloud layer between 3/8ths and 4/8ths, based on the summation layer amount for that layer.
Sky cover The amount of sky covered or concealed by clouds or obscuring phenomena. It is reported in tenths, so that 0.0 indicates a clear sky and 1.0 (or 10/10) indicates a completely covered sky.
SUFSufficientSummation PrincipleThis principle states that the sky cover at any level is equal to the summation of the sky cover of the lowest layer plus the additional sky cover provided at all successively higher layers up to and including ...
One okta of cloud cover is the equivalent of 1/8 of the sky covered with cloud. OLROutgoing Longwave RadiationOmegaA term used to describe vertical motion in the atmosphere.
Scattered Sky Condition: When the sky cover is 0.1 through 0.5.
Sea Breeze: Air (Wind) moving from the sea to over land. Begins several hours after sunrise. Reaches max by mid-afternoon and is stronger than a Land Breeze.
cloud fractionFraction of sky covered by clouds, observed directly or derived from SW irradiance.cloud ice waterThe concentration (mass/vol) of ice water particles in a cloud.
Scattered (SCT): 1) An official sky cover classification for aviation weather observations, descriptive of a sky cover of 3/8 to 4/8.
greater than 90 percent of the sky covered by clouds
Clinometer, Alidade and Ceiling Projector Sometimes frustrated middle school or high school mathematics students will ask, "What good is this trigonometry, anyway?
summation principle—The principle states that the cover assigned to a layer is equal to the summation of the sky cover of the lowest layer plus the additional coverage at all successively higher layers up to and including the layer in ...
Estimate the fraction of the sky covered by cloud. An easy way is to observe how many eighths of the sky is cloudy. For example, if half the sky contains clouds, you would describe the cover as 4/8.
Synoptic weather observation A surface weather observation, made at periodic times (usually at 3-hourly and 6-hourly intervals specified by the World Meteorological Organization), of sky cover, state of the sky, cloud height, ...
Forecast sky cover (height and amount of cloud bases), cloud tops, visibility (including vertical visibility), weather, and obstructions to vision are described for a corridor 25 miles either side of the route.
OPAQUE A condition where a material, such as a cloud, blocks the passage of radiant energy, especially light. Opaque sky cover refers to the amount of sky cover that completely hides all that might be above it.
At least six eighths of the sky covered with cloud all day
Coalescence
The growth of liquid cloud droplets grow by collision.
Cloud Cover: Part of the sky covered by clouds. Normally measured in eighths.
A layer of the atmosphere with 5/8 to 7/8 sky cover (cloud cover).
BS
Blowing Snow ...
The height above the surface of the base of the lowest layer of clouds that obscures more than half the sky; reported for only broken and overcast sky cover. The ceiling may be estimated by visual means or measured by a ceilometer.
ceilometer ...
Broken LevelA layer of the atmosphere with 5/8 to 7/8 sky cover (cloud cover).
Sky conditionThe state of the sky in terms of such parameters as sky cover, layers and associated heights, ceiling, and cloud types.SleetRain drops that freeze into ice pellets before reaching the ground.
 See also: Weather, Cloud, Surface, Water, Temperature
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