What is unique about stratus clouds?
Stratus clouds form at low altitudes and are more closely related to fog than other types of clouds. They aren’t the same as fog, however, because fog usually forms from ground moisture, whereas stratus clouds form from moisture already in the air.
What are stratus clouds made of?
Stratus clouds look like featureless gray to white sheets of cloud. They can be composed of water droplets, supercooled water droplets, or ice crystals depending upon the ambient temperature.
What are 2 characteristics of stratus clouds?
Stratus clouds are uniform and flat, producing a gray layer of cloud cover which may be precipitation-free or may cause periods of light precipitation or drizzle.
What color are stratus clouds?
grey
Stratus clouds are low-level layers with a fairly uniform grey or white colour. Often the scene of dull, overcast days in its ‘nebulosus’ form, they can persist for long periods of time. They are the lowest-lying cloud type and sometimes appear at the surface in the form of mist or fog.
Where are stratus clouds located?
Found at very low levels (less than 2000 meters, or 6500 feet), stratus clouds are thick, large, heavy-looking gray clouds that dominate the sky.
How fast do stratus clouds move?
Typically, clouds move at an average speed of 30-250mph. However, it can change according to the situation and wind conditions. There are different factors that influence the speed of cloud movement.
What causes stratus cloud?
Stratus clouds form in calm, stable conditions when gentle breezes raise cool, moist air over colder land or ocean surfaces. These clouds can exist in a variety of thicknesses and are sometimes opaque enough to darken days, allowing for little light to pass through.
What weather do stratus clouds bring?
What weather is associated with stratus clouds? Stratus is usually accompanied by little to no rainfall but if it is thick enough, it can produce light drizzle. This drizzle can also fall in the form of light snow if cold enough.
What are stratus clouds called?
Stratiform clouds, also called stratus clouds, themselves come in four varieties: cirrostratus, altostratus, stratus and nimbostratus. Some of these stratus clouds provide a strong indication of approaching precipitation, while others produce precipitation.
What weather does a stratus cloud bring?
What type of cloud is a stratus cloud?
The two main types of low clouds include stratus, which develop horizontally, and cumulus, which develop vertically. Stratus clouds are uniform and flat, producing a gray layer of cloud cover which may be precipitation-free or may cause periods of light precipitation or drizzle.
What are stratus clouds?
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals. More specifically, the term stratus is used to describe flat, hazy, featureless clouds at low altitudes varying in color from dark gray to nearly white.
What is the difference between Stratus and Cumulus?
Stratus clouds may produce a light drizzle or a small amount of snow. These clouds are essentially above-ground fog formed either through the lifting of morning fog or through cold air moving at low altitudes over a region. Like stratus clouds, they form at low levels; but like cumulus clouds, they form via convection.
What causes stratiform clouds to form?
Stratus cumulogenitus clouds occur when the base of cumulus clouds spreads, creating a nebulous sheet of stratiform clouds. This can also occur on nimbostratus clouds (stratus nimbostratogenitus) and on cumulonimbus clouds (stratus cumulonimbogenitus).
What is the difference between Stratus fractus and stratus nebulosus?
Stratus fractus can also form beside mountain slopes, without the presence of nimbus clouds (clouds that precipitate), and their color can be from dark grey to almost white. Stratus fractus are not divided into varieties, but stratus nebulosus on the other hand, are divided into two.