Cumulonimbus Clouds reaching high into the atmosphere
Cumulonimbus clouds (Cb) are much larger and more vertically developed than fair weather cumulus. They can exist as individual towers or form a line of towers called a squall line.
CUMULONIMBUS CLOUD (Cb): A vertically developed cloud, often capped by an anvil shaped cloud. Also called a thunderstorm cloud, it is frequently accompanied by heavy showers, lightning, thunder, and sometimes hail or gusty winds.
Cumulonimbus Cloud - A cloud characterized by strong vertical development in the form of huge cloud towers. Sometimes it is topped wholly or partially by an anvil. This type of cloud is more commonly called a thunderhead.
Cumulonimbus cloud
Heavy, puffy, heaped, dark cloud of great vertical depth, often bringing rain. Some have a distinctive anvil shaped head.
Cumulus ...
Cumulonimbus clouds (Cb) Thunderstorm clouds that form as a consequence of deep convection in the atmosphere.
Cumulonimbus Cloud (Cb) They are the ultimate manifestation of instability. They are vertically developed clouds of large dimensions with dense "boiling" tops often crowned with thick veils of dense cirrus (anvil).
*Cb - Cumulonimbus cloud, characterized by strong vertical development in the form of mountains or huge towers topped at least partially by a smooth, flat, often fibrous anvil. Also known colloquially as a "thunderhead." ...
Cumulonimbus clouds showing strong updrafts.
These clouds can have strong upcurrents, rise far above their bases and can form at many heights.
Clouds in Family D include: ...
Cb - Cumulonimbus cloud
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.
A portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they often accompany storms.
THUNDERSTORM - A cumulonimbus cloud producing lightning and precipitation. A thunderstorm is not a solid object in the atmosphere, but a complex system of convection that transports air from the lower atmosphere to the upper air.
thunderstorms and cumulonimbus clouds
tropical cyclones
severe squall lines
moderate or severe turbulence
moderate or severe icing
widespread sand storms and dust storms
well-defined surface convergence zones ...
Congestus (or Cumulus congestus)A large cumulus cloud with great vertical development, usually with a cauliflower-like appearance, but lacking the characteristic anvil shaped top of a Cb (Cumulonimbus cloud).
MAMMATOCUMULUS An obsolete term for cumulonimbus mammatus, it is a portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they often accompany storms.
AnvilThe flat, spreading top of a cumulonimbus cloud, often shaped like an anvil. Thunderstorm anvils may spread hundreds of miles downwind from the thunderstorm itself, and sometimes may spread upwind.
Thus, a cumulonimbus cloud is said to have a "glaciated" upper portion.GlacierIn hydrologic terms, bodies of land ice that consist of recrystallized snow accumulated on the surface of the ground, and that move slowly downslope.
thunderstorm - (Sometimes called electrical storm.) In general, a local storm, invariably produced by a cumulonimbus cloud and always accompanied by lightning and thunder, usually with strong gusts of wind, heavy rain, and sometimes with hail.
The stones fall from cumulonimbus clouds.hailstonesTransparent or partially opaque particles of ice that range in size from that of a pea to that of golf balls.
Four Basic Thunderstorm Types Thunderstorms occur in a variety of forms, sometimes as an isolated cumulonimbus cloud (anvil shaped), sometimes as a cluster of clouds, sometimes as a squall line, ...
CB: Cumulonimbus cloud.
CCL: Convective Condensation Level: The level at which condensation forms. (Clouds)
Ceiling: Height above the ground of the lowest based layer of clouds reported as broken or overcast.
The typical structure consists of bands of cumulonimbus clouds which spiral towards a clear central eye, though this can be obscured by high cirrus cloud.
The cumulonimbus cloud towers above the ordinary cumulus clouds, with stronger or severe storms often having a more sharply outlined "hard" appearance with relatively rapid rising motions visible. The cloud's upper portion includes the anvil.
Thunderstorm/Thundershower: A local storm produced by a cumulonimbus cloud that contains thunder and lightning and often strong wind gusts, heavy rain showers and, at times, hail.
CUMULONIMBUS MAMMATUS A portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they often accompany storms.
Produced by a cumulonimbus cloud, it is a microscale event of relatively short duration characterized by thunder, lightning, gusty surface winds, turbulence, hail, icing, precipitation, moderate to extreme up and downdrafts, ...
A local storm produced by a cumulonimbus cloud and accompanied by lightning and thunder.
Tidal Cycle
The periodic changes in the intensity of tides caused primarily by the varying relations between the earth, moon, and sun.
Tornado: Extension of the base of a Cumulonimbus cloud, in the form of funnel, which, circulating fast, goes down to the surface of the Earth, where it produces as strong whirlwind capable of causing great destruction.
However, note that both Cumulus and Cumulonimbus clouds often extend well into 'medium' levels, and towering Cu, and Cb extend to 'high' levels.
In the 'Medium' cloud class come: Altostratus (As); Altocumulus (Ac) and Nimbostratus (Ns).
downdraft"Small-scale downward moving air current in a cumulonimbus cloud. See also draft.
downrush"A term sometimes applied to the strong downward-flowing air current that marks the dissipating stage of a thunderstorm. Compare uprush.
Downburst: a strong downdraft current of air from a cumulonimbus cloud, often associated with intense thunderstorms.
Drizzle: precipitation consisting of numerous minute droplets of water less than 0.5 mm (500 micrometers) in diameter.
cumulonimbus mamma—A cumulonimbus cloud having hanging protuberances, like pouches, festoons, or udders, on the under side of the cloud; usually indicative of severe turbulence.
Thunderstorm - a local storm produced by a cumulonimbus cloud, always with lightning and thunder, and usually accompanied by strong gusts of wind, heavy rain, and sometimes hail ...
Eyewall / Wall Cloud: An organized band or ring of cumulonimbus clouds that surround the eye, or light-wind center of a tropical cyclone. Eyewall and wall cloud are used synonymously.
Showery precipitation in the form of irregular pellets or balls of ice more than 5 mm in diameter, falling from a cumulonimbus cloud.
NOAA National Weather Service - Cite This Source - This Definition ...
The tornado usually appears from a bulge in the base of a cumulonimbus cloud. It has a typical width of tens to hundreds of meters and a lifespan of minutes to hours.
TORNADO - A violent rotating column of air, usually forming a pendant from a cumulonimbus cloud with the circulation reaching the ground. It nearly always starts as a funnel cloud and may be accompanied by a loud roaring noise.
Unlike the mountain cap cloud the pileus is essentially an accessory cloud, that appears as a smooth cap, or hood above a cumulus or cumulonimbus cloud. The cap forms when a humid layer is lifted to its dew point above a rising thermal.
Waterspout - A rapidly rotating column of air extending from a cumulonimbus cloud with a circulation that reaches the surface of the water, (i.e. a tornado over water).
Commonly Used Weather Terminology ...
Funnel Cloud- a funnel shaped cloud that extends from a cumulus or cumulonimbus cloud; this cloud is related to a rotating column of air that is not in contact with the ground.
- G - ...
Hail is produced when large frozen raindrops, or almost any particles, in cumulonimbus clouds act as embryos that grow by accumulating supercooled liquid droplets.
hail: precipitation composed of chunks of ice that form atop cumulonimbus clouds and fall as soon as they become too heavy for the cloud updrafts to hold.
A local storm, usually produced by a cumulonimbus cloud (thunderhead), and accompanied by thunder and lightning.
Tidal bore ...
HAIL: Frozen precipitation in the form of layered lumps of ice produced by convection within cumulonimbus clouds.
HAZE: Fine dust particles present in a portion of the atmosphere.
Tornado An intense, rotating column of air that protrudes from a cumulonimbus cloud in the shape of a funnel or a rope and touches the ground. (See Funnel cloud.) ...
Lightning - A sudden flash of light generated by the flow of electrons between oppositely charged parts of a cumulonimbus cloud or between the cloud and the ground.
Solid precipitation in the form of chunks or balls of ice with diameters greater than 5 mm. The stones fall from cumulonimbus clouds.
Hailstones(6) ...
CAVUClear or Scattered Clouds (visibility greater than 10 mi.)CbCumulonimbus cloud, characterized by strong vertical development in the form of mountains or huge towers topped at least partially by a smooth, flat, often fibrous anvil.
 See also: Cumulonimbus, Nimbus, Cloud, Clouds, Air
  
|
RSS
