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Altostratus is a middle-altitude cloud genus made up of water droplets, ice crystals, or a mixture of the two. Altostratus clouds are formed when large masses of warm, moist air rise, causing water vapor to condense. Altostratus clouds are usually gray or blueish featureless sheets, although some variants have wavy or banded bases.
What are altostratus clouds? Altostratus are large mid-level sheets of thin cloud. Usually composed of a mixture of water droplets and ice crystals, they are thin enough in parts to...
Jul 25, 2023 · An altostratus cloud is a mid-level cloud that covers the sky in a uniform layer, much like a sheet. They usually bring a gray or bluish-gray appearance to the sky, giving us those...
Stratus clouds are stratified or layered clouds covering big portions of the sky. These clouds are usually formed due to the mixing of air masses with various temperatures or due to loss of heat. The presence of stratus clouds means chilly, overcast day.
Mar 30, 2023 · Altostratus clouds are mid-level, featureless clouds that indicate fair weather. These clouds cast over the entire sky, but aren’t thick enough to completely block out the sun. They’re usually white, but some may be very light gray or have a bluish hue.
Altostratus is generally a layer of great horizontal extent (several tens or hundreds of kilometres) and fairly considerable vertical extent (several hundreds or thousands of metres). Altostratus is composed of water droplets and ice crystals.
Sep 11, 2024 · Altostratus. Altostratus clouds are gray or blue-gray mid-level clouds composed of ice crystals and water droplets. The clouds usually cover the entire sky. Weather prediction: Be prepared for continuous rain or snow!
Species. Altostratus is not subdivided into species owing to the uniformity of its appearance and general structure. The text enclosed in grey-shaded boxes, like this example, comprises Annex I to the Technical Regulations (WMO-No. 49) and has the legal status of standard practices and procedures.
Definition of Altostratus. Greyish or bluish cloud sheet or layer of striated (grooves or channels in cloud formations, arranged parallel to the flow of the air), fibrous or uniform appearance, totally or partly covering the sky, and having parts thin enough to reveal the Sun at least vaguely, as through ground glass or frosted glass.
May 24, 2024 · Altostratus clouds are more dense than the cirrostratus. The sun is barely visible through altostratus clouds giving the appearance of a "watery sun". Where enough light shows through cirrostratus clouds to create shadows, it does not with altostratus.
