broken"Descriptive of a sky cover of from 0.6 to 0.9 (to the nearest tenth). This is applied only when obscuring phenomena aloft are present, that is, not when the sky cover is composed entirely of surface-based obscuring phenomena.
BROKEN CLOUDS: Clouds which cover between 6/10 and 9/10 of the sky.
CAA: Cold Air Advection.
CEILING: The height of the lowest layer of clouds, when the sky is broken or overcast.
BROKEN CLOUDS: Clouds which cover between 6/10 and 9/10 of the sky. See Sky Terminology.
CAA: Cold Air Advection
CEILING: The height of the lowest layer of clouds, when the sky is broken or overcast.
BROKEN The amount of sky cover for a cloud layer between 5/8ths and 7/8ths, based on the summation layer amount for that layer.
Broken - a classification for sky cover used when 0.6 (six tenths) to 0.9 (nine tenths) of the sky is covered by clouds
BRN - see Bulk Richardson Number ...
Broken
Describes cloud cover when between 5/8ths to 7/8ths of the sky is obscured by cloud.
Bubble High ...
Broken (BKN) An official sky cover classification for aviation weather observations, descriptive of a sky cover of 5/8 to 7/8.
Broken Level
A layer of the atmosphere with 5/8 to 7/8 sky cover (cloud cover).
BS ...
BKN- Broken sky. 6/10 to 9/10 cloud coverage observed from the surface.
BLACKBODY- A mass which absorbs and emits all wavelengths of radiation.
A broken swell wave travelling shorewards across the surf zone. See also tidal bore.
Breaker
A wave that has broken into foam.
SCUD - Low broken clouds usually found beneath thunderstorm cloud bases, near fronts, or near cooler rain outflow regions. Common acronym for Scattered Cumulus Under Deck.
Clear, Scattered, Broken, and Overcast These are the common terms used in aviation meteorology to refer to sky conditions. They are based on the percentage of sky obscured by clouds. The list below shows the criteria used:
CLEAR ...
Broken cloudsClouds which cover between 5/8ths and 7/8ths of the sky.CalmThe absence of apparent motion in the air.CelsiusA temperature scale in which zero is the freezing point of water and one hundred is the boiling point.
SAND Loose particles of hard, broken rock or minerals. In observing, sand is reported when particles of sand are raised to sufficient height that reduces visibility. It is reported as "SA" in an observation and on the METAR.
CIGCeiling- The height of the lowest layer of clouds, when the sky is broken or overcast.CINConvective INhibition. A measure of the amount of energy needed in order to initiate convection.
These reports are broken up regionally. When the complementary satellite product is not available, reports from unaugmented ASOS stations will report "fair" in the sky/weather column when there are few or no clouds (i.e., scattered or less) below 12, ...
Ceiling The height ascribed to the lowest layer of clouds or obscuring phenomena when it is reported as broken, overcast, or obscuration and not classified as "thin" or "partial.
Breakup JamIn hydrologic terms, an ice jam that occurs as a result of the accumulation of broken ice pieces.Breakup PeriodIn hydrologic terms, the period of disintegration of an ice cover.
stratus (unbroken layer of cloud), nimbostratus (dark, unbroken layer, rain cloud)
cumulus (puffy, irregular clouds), stratocumulus (cumulus clouds arranged in a broad layer)
clouds of vertical development ...
Although it is regarded as a 'single' ribbon of strength encircling the hemispheres, in reality the jet is broken and in developmental situations, can become very distorted with new jets re-forming at different levels from the 'main' baroclinic jet.
Fronheiser suffered a broken collarbone, bruises and cuts, while Grave was treated for a broken foot and bruises. Both were released.
The squall line is a solid or broken line of thunderstorms with a continuous, well-developed gust front on the leading edge.
The five years leading up to Federation (January 1901) saw intermittent dry spells over most of the country, particularly in 1897 and 1899; in most of Queensland, dry conditions were virtually unbroken from 1897.
They are broken down by strong ultraviolet light in the stratosphere and release chlorine atoms that then deplete the ozone layer. CFCs are commonly used as refrigerants, solvents, and foam blowing agents.
Clear skies allow 100% of the incoming UV radiation from the sun to reach the surface, whereas scattered clouds transmit 89%, broken clouds transmit 73%, and overcast conditions transmit 31%.
A piece of a glacier which has broken off and is floating in the sea.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Bergy Bit, BKN, Breakup Jam, Floe, Freezup jam, Hummock, Ice Gorge, Ice Jam, RDG, Ridge ...
The clouds were broken at 2,000 ft (610 m) with tops at 4,000 ft (1,219 m) and an overcast layer at 11,000 ft (3,353 m). The temperature is -14 Celsius and the winds are from the NE (030 degrees true) at 45 knots (83 km/h).
Ceiling - The height of the lowest layer of broken or overcast cloud layer.
Cirrus Clouds - Thin, wispy clouds that form high in the atmosphere as their water vapor freezes into ice crystals. Cirrus clouds are a principle cloud type.
CEILING The lowest cloud layer that is reported as broken or overcast. If the sky is totally obscured, then it is the height of the vertical visibility. Related terms: measured ceiling and variable ceiling ...
Fractocumulus - Fracto (torn or broken) + cumulus. Puffy clouds with shredded appearance.
Fractostratus - Layered but shredded clouds - also known as stratus fractus.
Ceiling- the height of the lowest layer of broken and overcast clouds.
Celsius- a temperature scale in which zero is the freezing point of water and one hundred is the boiling point.
Ceiling - The height of the lowest layer of broken or overcast clouds.
Ceilometer - A device used to evaluate the height of clouds or the vertical visibility into a surface-based obscuration.
Ceiling - The height of the lowest layer of broken or overcast cloud layer.
Cold Front - The transition zone where a colder air mass overtakes and replaces a warmer air mass.
CEILING - The height above the ground of the lowest layer of clouds that is reported as broken or overcast and is not classified as thin or partial.
CENTER OF GRAVITY (CG) - The point where the total mass of the pilot and aircraft balances.
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 ...
Floe Separate patch of floating ice or flat sheet of unbroken pack ice, greater than 20 m across.
Squall Line - Any line or narrow band of active thunderstorms. The term is usually used to describe solid or broken lines of strong or severe thunderstorms.
above 22 400 kg cm-2, but then existing at temperatures up to about 100°C.) Ice has an open structure because the water molecules bond to their neighbors covalently only in four directions; it therefore floats on higher density water, where broken ...
Relative time scale based onstratigraphic position and correlation, and many different types of chronologic evidence. Geologic time is broken down into eons, eras, periods and epochs.
Geostrophic wind(6) ...
 See also: Weather, Temperature, Air, Water, Cloud
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