Opaque, masks the sun. Wavelike, undulating. Stratus Cloud Supplementary Features. Stratus clouds have two associated supplementary features: fluctus and praecipitatio.
Kelvin-Helmholtz waves, curls. Precipitation reaching the surface. Waterfall condensation and spray. Caused by human activity. Evaporation from a forest. Similar Cloud Types. Stratus vs. Altostratus Both altostratus clouds and stratus clouds are both layer clouds, so they can certainly look the same. Stratocumulus Both stratus and stratocumulus clouds are found at the same altitude. Nimbostratus Both stratus and nimbostratus clouds can be found at the same height, are both relatively featureless, and are both the same light gray to dark gray color.
At the most, stratus clouds might bring a drizzle. A type of stratus cloud, nimbostratus, do bring precipitation. Weather associated with nimbostratus clouds might be rain or snow. These clouds are so named because nimbus means rain in Latin. They are dark gray and typically rest in lower altitudes, no higher than 8, ft. Yet another form of stratus cloud is the combination of a stratus cloud and a cumulus cloud, called a stratocumulus cloud. Stratocumulus clouds bring light precipitation, often a drizzle, and are found at the same elevation as nimbostratus clouds.
They are somewhat fluffy, due to their cumulus nature, but darker than typical cumulus clouds. Generally, stratocumulus clouds do not bring much in terms of weather; they are used to predict dull weather. There are many variations of stratocumulus clouds. These variations are classified as one of two types: stratocumulus undulatus undulated, or waved or stratocumulus cumuliformis cumulus-shaped.
The types of clouds in the stratocumulus undulatus category are tratocumulus lenticularis lens-shaped, elongated and flat , stratocumulus opacus dark and thick , stratocumulus perlucidus occasionally exhibiting pockets of inconsistency that allow sunlight through , and stratocumulus translucidus sheets of stratocumulus clouds, between which a clear sky can be seen. Stratocumulus cumuliformis clouds include stratocumulus castellanus towers of clouds billowing from a common base , stratocumulus diurnalis low altitude clouds resulting from spreading of cumulus or cumulonimbus clouds , stratocumulus mammatus from mamma, the Latin word for breast; having rounded clouds hanging underneath the stratus layer , and stratocumulus vesperalis generated by air cooling patterns that occur in the evening.
High stratus clouds are called altostratus. Cirrus clouds are delicate, feathery clouds that are made mostly of ice crystals. Their wispy shape comes from wind currents which twist and spread the ice crystals into strands.
Weather prediction: A change is on its way! Cirrostratus clouds are thin, white clouds that cover the whole sky like a veil. These clouds are most commonly seen in the winter, and can cause the appearance of a halo around the sun or the moon.
Weather prediction: Rain or snow will arrive within 24 hours! Cirrocumulus clouds are thin, sometimes patchy, sheet-like clouds.
Weather prediction: Fair, but cold. However, if you live in a tropical region, these clouds could be a sign of an approaching hurricane! Altocumulus clouds have several patchy white or gray layers, and seem to be made up of many small rows of fluffy ripples. They are lower than cirrus clouds, but still quite high. Weather prediction: Fair. 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! Nimbostratus clouds are dark, gray clouds that seem to fade into falling rain or snow. They are so thick that they often blot out the sunlight. Weather prediction: Gloomy with continuous rain or snow. Cumulus clouds look like fluffy, white cotton balls in the sky.
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