Examples of the Cirrus Principal Cloud Type Cirrus Cirrus fibratus Cirrus floccus Cirrocumulus Cirrostratus Cirrus uncinus Tanak je i ne baca sjenu. Cirrus castellanus: Ci cas: Small turrets-like excrescences. Further development in the vertical may see some become Cumulus mediocris. The cirrus incinus clouds are commonly visible when there is a warm front coming in and depending on the direction of the wind, the curls or hooks will point outward away from the wind direction. Devon, UK. (, Height levels - the height range of clouds, Estimation of the height of the cloud base. Cirrus uncinus appears as filaments shaped … The predominate species is uncinus, filaments often shaped like a comma, terminating at the top in a hook or a tuft but not in the form of a rounded protuberance. The uncinus is shaped like a comma and terminates at the top in a hook and, in some places, a tuft. The main feature of this image is a long band of Cirrus fibratus aligned north-west to south-east, parallel to the observed north-west winds at height. Devon, UK. This species of cirrus cloud normally signify a warm front coming in. Tufted Cirrus of the species uncinus was developing on the downwind edge and short-lived ice crystal virga was forming from small patches of Altocumulus on the horizon. However the common characteristics of these clouds are that: Cirrus fibratus clouds are formed when winds at high altitudes are strong and flow over the cold air from below. This is the variety vertebratus. The cirrus fibratus cloud formation does not cover the whole sky and commonly appears in patches scattered throughout the sky.

Cirrus uncinus, floccus, castellanus, fibratus and spissatus. Známe podtypy Tvary. Cirrus uncinus at Wolstanton, September 2007.
Cirrus clouds, cirrus fibratus fair weather, with cirrus uncinus, Cirrus fibratus clouds showing red and green bands of iridescence due to defracted sunlight. https://www.alamy.com/stock-photo-cirrus-clouds-above-an-old-tenement-building-beside-the-union-canal-138974112.html, https://www.alamy.com/stock-photo-cirrus-clouds-cirrus-fibratus-fair-weather-with-cirrus-uncinus-144893673.html, https://www.alamy.com/winter-sunset-over-lighthouse-and-fountain-in-the-lake-at-january-wabash-park-ferguson-saint-louis-missouri-image220024303.html. In the area of the tuft, there is actually some limited uplift which produces a cloud dense enough to cause precipitation of fine ice crystals. The much smaller cloud elements behind and above the rooftops on the left-hand side are small enough to be Cirrocumulus floccus; they also have the characteristic ragged base of Cirrocumulus floccus.

Cirrus fibratus (Ci fib) - nori de altitudine mare care se prezintă sub formă de fibre drepte sau neregulate. The cirrus fibratus is part of the cirrus genus. The lower layer comprises slightly entangled, irregularly curved filaments at the top of the photo and a line where the filaments are arranged in a manner suggestive of one side of a fish skeleton. Nearly straight filaments of very high and fine Cirrus fibratus dominate this image. They can indicate an approaching warm front;[5] however, they can also be an indication that fair weather will follow. A spectacular example of the two most common Cirrus species: fibratus and uncinus. Cirrus with hooks identifying it as species uncinus.

Sunset and autumn colors blend over the Highlands Golf Center in St. Louis Forest Park, featuring bald cypress trees and cirrus clouds. Like other cirrus clouds, cirrus fibratus occur at high altitudes. The cirrus fibratus is part of the cirrus genus. [3] The filaments are usually separate from one another. Links in the image description will highlight features on the image. The cirrus fibratus are light and feathery clouds that end in wispy thin hair-lie threads. These clouds are similar to cirrus uncinus, commonly known as "mares' tails"; however, fibratus clouds do not have tufts or hooks at the end. The cloud is white and without shading but has delicate filaments and patches identifying it as Cirrus. This is an outstanding example of Cirrus with a milky sheen. The Cirrus was associated with a weak frontolyzing cold front over Cornwall, UK. The increasing Cirrus heralded the approach of a fast-moving warm front to a depression 1500 km to the west. https://www.alamy.com/winter-sunset-over-lighthouse-and-fountain-in-the-lake-at-january-wabash-park-ferguson-saint-louis-missouri-image220024289.html. Sastavljen od ledenih kristalića. The name cirrus fibratus is derived from Latin, meaning "fibrous". Two layers of Cirrus fibratus can be seen. Your Lightboxes will appear here when you have created some. https://www.alamy.com/cirrus-clouds-on-a-fine-summer-evening-above-a-cherry-tree-prunus-avium-devon-uk-image366105049.html. From there, Cirrus clouds, consisting of fibrous elements (fibratus), extend upwards in the picture, approximately to 3 - 4, where a continuous veil of Cirrostratus begins; this veil extends through the zenith to the western horizon. The cirrus fibratus clouds are very common at high altitudes. Wildflower meadows and ancient woods abound in the Downs, https://www.alamy.com/cirrus-cloud-high-above-romney-street-near-darent-valley-kent-england-uk-in-early-june-wildflower-meadows-and-ancient-woods-abound-in-the-downs-image255331489.html, https://www.alamy.com/cirrus-clouds-on-a-fine-summer-evening-above-a-silver-birch-tree-betula-pendula-devon-uk-image366105424.html, https://www.alamy.com/stock-photo-cirrus-clouds-cirrus-fibratus-fair-weather-with-cirrus-uncinus-144893544.html, White cloud formations against blue summer sky, probably Cirrus fibratus or cirrus uncinus formed after the pasing of a plane, https://www.alamy.com/stock-photo-white-cloud-formations-against-blue-summer-sky-probably-cirrus-fibratus-58203065.html, https://www.alamy.com/stock-photo-cirrus-fibratus-clouds-24017866.html, https://www.alamy.com/stock-photo-cirrus-clouds-cirrus-fibratus-fair-weather-with-cirrus-uncinus-144893536.html, https://www.alamy.com/stock-photo-white-cloud-formations-against-blue-summer-sky-probably-cirrus-fibratus-58203040.html.
The combination of the warm air and the moisture is usually unevenly distributed hence the trail of fine fibers at the ends of such clouds. The species Cirrus fibratus is comprised of nearly straight or irregularly curved fine, white filaments, that are, for the most part, distinct from one another. Identifying the cirrus fibratus cloud is fairly straightforward as the ends of such clouds do not clump up but appear as very fine fibers, hence the name fibratus. Cirrus in patches, sufficiently dense to appear greyish (unlike other cirrus species) when viewed towards the sun is the species Cirrus spissatus. Common subdivisions. Cirrus is not associated with any precipitation. From the surface of Earth, cirrus clouds typically appear white, or a light grey, in color; they form when water vap The sky is nearly filled with Cirrus uncinus(1, 2, 3) and Cirrus fibratus elements. Abernethy, Perth, Scotland, UK. If it did terminate at the top in the form of a rounded protuberance, it would be identified as Cirrus floccus. Both species are present as white, delicate, hair-like filaments; the fibratus consists of nearly straight filaments and also of more or less irregularly curved filaments. USA, Utah. The sounding from 100 km west-north-west shows high moisture content in two layers: from 487 to 465 hPa (5 800 to 6 200 m) and from 407 to 385 hPa (7 200 to 7 600 m).