stratus fractus (formerly, fractostratus). Fractus clouds may develop into cumulus if the ground heats enough to start convection. Stratus fractus is distinguishable...

tuba. The species Cumulus fractus is ragged in appearance and can form in clear air as a precursor to cumulus humilis and larger cumulus species-types; or...

generally more detached and less wide at the base. Cumulus fractus (V-86) Ragged shreds of cumulus clouds. Cumulus humilis (V-87) "Fair weather clouds" with flat...

type of fractus cloud at low height above ground, detached, and of irregular form, found beneath nimbostratus, cumulonimbus, altostratus and cumulus clouds...

pannus feature, low ragged clouds of the genera and species cumulus fractus or stratus fractus. A group of accessory clouds comprise formations that are...

may generate cumulus or cumulus fractus in its upwelling portion, also known as a "roll cloud". The rotor cloud looks like a line of cumulus. It forms on...

Cumulonimbus (from Latin cumulus 'swell' and nimbus 'cloud') is a dense, towering, vertical cloud, typically forming from water vapor condensing in the...

nebulosus may produce light rain and drizzle or flakes of snow. Stratus fractus clouds on the other hand, appear with an irregular shape, and forms with...

stratocumulus. This often does not apply when stratocumulus is of a broken, fractus form, when it may appear as small as altocumulus. Stratocumulus clouds...

mostly stable. With significant airmass instability, vertically developed cumulus or cumulonimbus with showers and thunderstorms will form along the front...

cloud, if the cloud is ragged and wispy, then it is called a "stratus fractus" silvagenitus cloud. These clouds typically form near the ground. The silvagenitus...

Nimbostratus cloud Cirrostratus nebulosus Altostratus undulatus cloud Fractus cloud World Meteorological Organization, ed. (1975). Cirrostratus, International...

wide area unless the approaching warm airmass is unstable, in which case cumulus congestus or cumulonimbus clouds will usually be embedded in the main precipitating...

of the leading edge of a shelf cloud to be ragged and lined with rising fractus clouds. In a severe case there will be vortices along the edge, with twisting...

Positive buoyancy is necessary for the formation of convective clouds (cumulus, cumulus congestus and cumulonimbus). 25 AD – Pomponius Mela, a geographer for...

of clouds with ragged bases and often with noticeable virga Ac, Cc, Ci Fractus fra Broken cloud with ragged bases and edges Cu, St Humilis hum Cloud with...

castellanus accompanies or takes the place of the main altostratus layer, cumulus congestus or cumulonimbus producing showers or thunderstorms may follow...

Laboratory (FSL) Forward-flank downdraft (or front-flank downdraft) (FFD) Fractus cloud (Fr) Front Frontogenesis Fujita scale (F scale) Funnel cloud Gate-to-gate...

forward-flank downdraft (FFD) fractus (Fr) A cloud type or species consisting of ragged, irregularly shaped patches or shreds of cumulus or stratus. frazil ice...

two species: nebulosus, a largely-featureless flat gray cloud sheet, and fractus, shattered fragments of cloud often called "scud". Opaque varieties of...

violently up or down, and violent movements of cloud fragments (scud or fractus) near the wall cloud, are indications that a tornado could form. Mammatus...

ATM Research SESMA Special Event Search and Master Analysis SF Stratus Fractus Cloud type SFCC Slat Flap Control Computer SFO Senior First Officer SFP...