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Cirrostratus clouds are very high clouds that can indicate either fair weather or an approaching storm. Altostratus clouds form at middle levels and can let sunlight pass through if not too thick. Fog forms at low levels when air reaches its dew point near the ground.
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Types of clouds
Cirrus clouds form at high altitudes and indicate deteriorating weather conditions. They appear wispy and white or light gray. Cumulus clouds form at low altitudes and have puffy, cotton-like appearances. They can grow into storm clouds. Nimbus clouds produce precipitation that reaches the ground as rain, hail, snow or sleet. Stratus clouds are low-level, uniform clouds that may produce light drizzle or snow.
Cloud types!!
This document describes the key characteristics of different types of clouds:
Stratocumulus clouds appear as low, lumpy layers that sometimes bring weak precipitation and vary in color from dark to light gray. Cumulonimbus clouds exist as large individual towers or lines that can reach heights over 39,000 feet. Cirrus clouds are the most common high-level clouds composed of ice crystals above 20,000 feet. Cirrocumulus clouds are small, white or gray puffs that often appear in long rows. Altocumulus clouds contain water droplets between 6,500 and 20,000 feet and may be banded or rounded masses.
The clouds
Clouds can be classified based on their height and appearance. The main cloud types are cirrus (high, wispy), stratus (low, sheet-like), cumulus (low, puffy), and nimbus (rain-bearing). Cirrocumulus and altocumulus appear at middle altitudes in globular masses or rolls. Altostratus and stratocumulus form gray layers or patches. Cumulonimbus clouds produce thunderstorms with ice crystal tops and mushroom shapes. Clouds are differentiated based on their altitude, color, shape, and whether they produce precipitation.
Cloud Types
Cumulus clouds are low-level, puffy clouds. Stratus clouds are also low-level clouds that form thick gray layers covering the entire sky and can result from thick fog lifting. Cumulonimbus clouds are middle-level clouds that bring intense weather like lightning, thunder, tornadoes. Cirrus clouds are high-level, thin clouds blown by winds that typically mean fair weather. Fog forms near the ground. High-level clouds above 20,000 feet contain ice crystals due to cold temperatures. Middle-level clouds between 6,500 to 20,000 feet contain water droplets and sometimes ice. Low-level clouds below 6,500 feet contain water droplets and can contain ice or snow in cold conditions.
Types of Cloud
The document defines and describes the 10 major types of clouds, including cirrus, cirrocumulus, cumulonimbus, altocumulus, altostratus, cumulus, stratus, stratocumulus, cirro, and nimbostratus. Each cloud type is given a brief description of its appearance such as thin and wispy, small and puffy, or tall and fluffy. Latin and Greek roots are also provided to explain the meaning behind parts of cloud names.
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The document discusses different types of clouds. It describes stratus clouds as gray clouds resembling fog without reaching the ground. Cirrus clouds are thin and wispy, moving from west to east. Cirrostratus clouds are thin and sheet-like, allowing the sun and moon to be seen through them. Cumulus clouds are puffy and cotton-like, sometimes taking shapes.
Weather Types Of Clouds
Cirrus clouds are very high and wispy ice crystals. Cumulus clouds are mid-level fluffy lumps of condensed vapor. Stratus clouds are layers of condensed vapor. Nimbus clouds are clouds that may cause precipitation. Cumulonimbus clouds are very tall and fluffy clouds that can cause heavy rains. When a cold front collides with a warm front, the warm moist air is pushed upwards.
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This document discusses different types of clouds and precipitation. It describes stratus clouds, cirrus clouds, cumulus clouds, and nimbus clouds. It also mentions alto clouds, fog, hail, and sleet. Key terms are defined, such as nucleus, overcast, clear, and scattered clouds. Conditions for different types of precipitation like hail and sleet are explained.
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Types of clouds
Cirrus clouds form at high altitudes and indicate deteriorating weather conditions. They appear wispy and white or light gray. Cumulus clouds form at low altitudes and have puffy, cotton-like appearances. They can grow into storm clouds. Nimbus clouds produce precipitation that reaches the ground as rain, hail, snow or sleet. Stratus clouds are low-level, uniform clouds that may produce light drizzle or snow.
Cloud types!!
This document describes the key characteristics of different types of clouds:
Stratocumulus clouds appear as low, lumpy layers that sometimes bring weak precipitation and vary in color from dark to light gray. Cumulonimbus clouds exist as large individual towers or lines that can reach heights over 39,000 feet. Cirrus clouds are the most common high-level clouds composed of ice crystals above 20,000 feet. Cirrocumulus clouds are small, white or gray puffs that often appear in long rows. Altocumulus clouds contain water droplets between 6,500 and 20,000 feet and may be banded or rounded masses.
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Clouds can be classified based on their height and appearance. The main cloud types are cirrus (high, wispy), stratus (low, sheet-like), cumulus (low, puffy), and nimbus (rain-bearing). Cirrocumulus and altocumulus appear at middle altitudes in globular masses or rolls. Altostratus and stratocumulus form gray layers or patches. Cumulonimbus clouds produce thunderstorms with ice crystal tops and mushroom shapes. Clouds are differentiated based on their altitude, color, shape, and whether they produce precipitation.
Cloud Types
Cumulus clouds are low-level, puffy clouds. Stratus clouds are also low-level clouds that form thick gray layers covering the entire sky and can result from thick fog lifting. Cumulonimbus clouds are middle-level clouds that bring intense weather like lightning, thunder, tornadoes. Cirrus clouds are high-level, thin clouds blown by winds that typically mean fair weather. Fog forms near the ground. High-level clouds above 20,000 feet contain ice crystals due to cold temperatures. Middle-level clouds between 6,500 to 20,000 feet contain water droplets and sometimes ice. Low-level clouds below 6,500 feet contain water droplets and can contain ice or snow in cold conditions.
Types of Cloud
The document defines and describes the 10 major types of clouds, including cirrus, cirrocumulus, cumulonimbus, altocumulus, altostratus, cumulus, stratus, stratocumulus, cirro, and nimbostratus. Each cloud type is given a brief description of its appearance such as thin and wispy, small and puffy, or tall and fluffy. Latin and Greek roots are also provided to explain the meaning behind parts of cloud names.
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The document discusses different types of clouds. It describes stratus clouds as gray clouds resembling fog without reaching the ground. Cirrus clouds are thin and wispy, moving from west to east. Cirrostratus clouds are thin and sheet-like, allowing the sun and moon to be seen through them. Cumulus clouds are puffy and cotton-like, sometimes taking shapes.
Weather Types Of Clouds
Cirrus clouds are very high and wispy ice crystals. Cumulus clouds are mid-level fluffy lumps of condensed vapor. Stratus clouds are layers of condensed vapor. Nimbus clouds are clouds that may cause precipitation. Cumulonimbus clouds are very tall and fluffy clouds that can cause heavy rains. When a cold front collides with a warm front, the warm moist air is pushed upwards.
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This document discusses different types of clouds and precipitation. It describes stratus clouds, cirrus clouds, cumulus clouds, and nimbus clouds. It also mentions alto clouds, fog, hail, and sleet. Key terms are defined, such as nucleus, overcast, clear, and scattered clouds. Conditions for different types of precipitation like hail and sleet are explained.
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Cirrus clouds are very wispy and high up around 20,000 feet. They are usually white and not associated with rain. Cumulus clouds are the puffy clouds seen around 3,000 feet up on sunny days. Cumulonimbus clouds produce thunderstorms, lightning, tornadoes and bad weather around 1,000 feet up. They can flatten at the top into an anvil shape. Stratus clouds cover the whole sky in a fog-like formation up to 6,000 feet and sometimes produce light drizzle or sprinkles while appearing grey.
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Cirrus clouds are thin and wispy, moving from west to east and usually indicating fair weather. Stratus clouds are gray clouds that may cover the sky and resemble fog, sometimes drizzling without reaching the ground. Cumulus clouds are puffy and cotton-like, growing upward and potentially developing into thunderstorms. The document provides descriptions of different cloud types and a game to test cloud identification.
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Clouds come in different types based on their altitude and consistency, including stratus, cirrus, and cumulus clouds. Stratus clouds form a thick, even blanket across the sky. Cirrus clouds are thin and wispy, found at high altitudes, taking straight or curvy shapes based on wind. Cumulus clouds have a puffy, built-up appearance and can form tear drop shapes when water droplets within them combine and fall.
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There are three main types of clouds: stratus clouds which form a blanket, cumulus clouds which are billowy and puffy, and cirrus clouds which are wispy and feather-like. Clouds can be named by their altitude using prefixes like cirro- for high altitudes and alto- for middle altitudes, or suffixes like -nimbus which indicate storms. The four main types of precipitation are rain, sleet, snow, and hail, which form depending on temperatures and whether water vapor condenses or freezes before reaching the ground. Rainfall amounts are measured using rain gauges, which is important information for farmers.
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This document discusses different types of clouds based on their properties and formation. It describes 10 main cloud types including cirrus, stratus, cumulus and nimbostratus clouds. These cloud types are grouped into high, middle and low clouds based on their average altitude. High clouds like cirrus are made of ice crystals while middle and low clouds contain mostly water droplets. Clouds form through the heating and rising of air masses which leads to the condensation of water vapor. Different cloud formations signal upcoming weather changes or precipitation.
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Clouds form when water evaporates into the sky and rises as vapor. There are three levels of clouds - low, mid, and high level clouds. Low level clouds include cumulus clouds, which are puffy and cotton-like, and fog clouds. Mid-level clouds consist of alto cumulus and alto stratus clouds. High level cirrus clouds are thin and wispy ice crystal clouds.
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Stratus clouds form low, smooth sheets in the sky and can bring rain, snow or fair weather. Cumulus clouds appear puffy with flat bases, sometimes towering high with fair weather or thunderstorms. Cirrus clouds are the highest and thinnest made of ice crystals, usually indicating fair weather but sometimes foreshadowing storms.
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This document discusses cloud classification and describes the different types of clouds. It begins by explaining the Latin prefixes used to classify clouds by altitude, such as "cirro-" for high-level clouds above 20,000 feet composed of ice crystals. Mid-level clouds between 6,500 and 20,000 feet use the prefix "alto-", and can contain water, ice, or a mix. Low clouds below 6,500 feet do not use a prefix. The document then describes the main types of high, mid, and low clouds such as cirrus, altostratus, stratocumulus, and cumulonimbus clouds. It explains the characteristic appearances and formations of each cloud type.
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1) The document discusses different types of clouds based on their composition, height, and shape. Clouds are classified into high, middle, and low clouds depending on their altitude in the atmosphere.
2) High clouds like cirrus and cirrostratus contain ice crystals and form above 6km. Middle clouds such as altostratus and altocumulus contain water droplets and ice crystals. Low clouds like stratus and cumulus contain mostly water droplets.
3) Common cloud types are described including cirrus, cirrostratus, cirrocumulus, altostratus, altocumulus, stratus, cumulus, nimbostratus, and cumulonimbus. Each
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The document discusses different types of clouds and weather phenomena. It defines various clouds like stratus, cirrus, cumulus, and nimbostratus clouds. It also explains terms like alto, fog, hail, sleet, nucleus, overcast, clear, scattered clouds, and partly cloudy. It provides brief descriptions of the characteristics and formations of these clouds and weather conditions.
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Clouds
What are clouds?
A cloud is a large collection of very tiny droplets of water or ice crystals. The droplets are so small and light that they can float in the air.
Why do clouds float?
A cloud is made up of liquid water droplets. A cloud forms when air is heated by the sun. As it rises, it slowly cools it reaches the saturation point and water condenses, forming a cloud. As long as the cloud and the air that its made of is warmer than the outside air around it, it floats!
There are 3 main types of clouds:
Cirrus or thin feathery clouds
Stratus or layered clouds
Cumulus or fluffy clouds
Cirrus Clouds
Are the most common of the
high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours.
Stratus Clouds
are uniform grayish clouds that often cover the entire sky. They resemble fog that doesn't reach the ground. Light mist or drizzle sometimes falls out of these clouds.
Cumulus Clouds
are white, puffy clouds that look like pieces of floating cotton. Cumulus clouds are often called "fair-weather clouds". The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.
The Importance of Clouds
Clouds help regulate Earth's energy balance by reflecting and scattering solar radiation and by absorbing Earth's infrared energy.
Clouds are required for precipitation to occur and, hence are an essential part of the hydrologic cycle.
Clouds indicate what type of atmospheric processes are occurring (e.g., cumulus clouds indicate surface heating and atmospheric turbulence).
Clouds help redistribute extra heat from the equator toward the poles.
References
https://www.google.com/search?q=clouds&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwixqOqjlu3NAhVHNpQKHbtGCE0Q_AUIBigB#imgrc=_
https://www.google.com/search?biw=1366&bih=624&tbm=isch&q=clouds+clipart&sa=X&ved=0ahUKEwir8paml-3NAhXGkJQKHSrFAPUQhyYIHQ&dpr=1#imgrc=WZWIVB52x_MJRM%3A
https://en.wikipedia.org/wiki/List_of_cloud_types
http://www.weatherwizkids.com/weather-clouds.htm
1 rainclouds
Warm air rises due to convection, cooling and condensing into water droplets that form clouds. Moist air forced to rise over hills and mountains also cools and condenses, forming relief rainfall. Frontal rainfall occurs when warm and cold air masses meet, with the warm air forced over cold air cooling and condensing. The main types of clouds are cirrus (high altitude wispy clouds), stratus (middle/low layered clouds), and cumulus (puffy clouds often leading to rain).
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Depressions, also known as lows, play an important role in weather systems. They form along polar fronts where cold air meets warm air, bringing rain and strong winds. Depressions follow a life cycle of about 2-5 days as they develop from small waves in polar fronts into mature low pressure systems with cold fronts catching up to warm fronts. Fully developed depressions have a counterclockwise circulation in the Northern Hemisphere due to the Coriolis effect. They can range in size from 150km to 3000km and travel up to 1000km per day, affecting weather over oceans and western continental landmasses.
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Clouds are formed when warm air rises and cools, causing water vapor to condense into water droplets. Clouds are classified by their height or shape above the earth's surface. Clouds associated with rain or snow have "nimbus" in their name, such as cumulonimbus clouds which form thunderstorms or nimbostratus clouds which bring rain or snow. Precipitation occurs when cloud droplets grow too large and fall from the sky.
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Thunderstorms require three conditions: unstable warm air, moisture, and a lift mechanism. When warm moist air rises, it cools and condenses to form cumulonimbus clouds. Water droplets collide and fall as rain. Thunderstorms can cause flash flooding and hail damage, and lightning occurs when warm and cool air interact within storm clouds or between clouds and the ground, heating the air to over 30,000 degrees Celsius and creating thunder.
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Weather is affected by factors like air pressure, wind, temperature, and moisture in the air. The sun provides energy that evaporates water into the atmosphere, where clouds form and later fall as rain or snow. It also heats the air, affecting local weather conditions. Air temperature influences daily life, as it is a measure of molecular motion - higher temperatures mean molecules move more rapidly, feeling warm, while lower temperatures mean slower motion and feeling cold. The record lowest worldwide temperature was -89.6°C in Antarctica, while the highest recorded anywhere was 162°F in Libya.
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Cirrus clouds are very wispy and high up around 20,000 feet. They are usually white and not associated with rain. Cumulus clouds are the puffy clouds seen around 3,000 feet up on sunny days. Cumulonimbus clouds produce thunderstorms, lightning, tornadoes and bad weather around 1,000 feet up. They can flatten at the top into an anvil shape. Stratus clouds cover the whole sky in a fog-like formation up to 6,000 feet and sometimes produce light drizzle or sprinkles while appearing grey.
Cloud Power Point
Cirrus clouds are thin and wispy, moving from west to east and usually indicating fair weather. Stratus clouds are gray clouds that may cover the sky and resemble fog, sometimes drizzling without reaching the ground. Cumulus clouds are puffy and cotton-like, growing upward and potentially developing into thunderstorms. The document provides descriptions of different cloud types and a game to test cloud identification.
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This document discusses different types of clouds and how they form. It explains that clouds form when water vapor condenses around particles in the air and that they can form through processes like air cooling, rising air, or changes in air pressure. The document then describes various cloud types categorized by height like cirrus, altostratus and cumulus clouds. For each cloud type, it provides details on their appearance and the weather they typically bring.
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The document discusses the formation of clouds and different types of clouds. It explains that clouds form when warm air rises and cools, causing water vapor to condense into water droplets or ice crystals. There are several main types of clouds including stratus clouds which form a blanket-like layer, cumulus clouds which have a puffy, cotton-ball appearance, and cirrus clouds which are high-altitude clouds with a feathery shape made of ice crystals. The document also defines fog, precipitation, and transpiration and provides some online resources about clouds.
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Clouds come in different types based on their altitude and consistency, including stratus, cirrus, and cumulus clouds. Stratus clouds form a thick, even blanket across the sky. Cirrus clouds are thin and wispy, found at high altitudes, taking straight or curvy shapes based on wind. Cumulus clouds have a puffy, built-up appearance and can form tear drop shapes when water droplets within them combine and fall.
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There are three main types of clouds: stratus clouds which form a blanket, cumulus clouds which are billowy and puffy, and cirrus clouds which are wispy and feather-like. Clouds can be named by their altitude using prefixes like cirro- for high altitudes and alto- for middle altitudes, or suffixes like -nimbus which indicate storms. The four main types of precipitation are rain, sleet, snow, and hail, which form depending on temperatures and whether water vapor condenses or freezes before reaching the ground. Rainfall amounts are measured using rain gauges, which is important information for farmers.
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This document discusses different types of clouds based on their properties and formation. It describes 10 main cloud types including cirrus, stratus, cumulus and nimbostratus clouds. These cloud types are grouped into high, middle and low clouds based on their average altitude. High clouds like cirrus are made of ice crystals while middle and low clouds contain mostly water droplets. Clouds form through the heating and rising of air masses which leads to the condensation of water vapor. Different cloud formations signal upcoming weather changes or precipitation.
Clouds
Clouds form when water evaporates into the sky and rises as vapor. There are three levels of clouds - low, mid, and high level clouds. Low level clouds include cumulus clouds, which are puffy and cotton-like, and fog clouds. Mid-level clouds consist of alto cumulus and alto stratus clouds. High level cirrus clouds are thin and wispy ice crystal clouds.
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Stratus clouds form low, smooth sheets in the sky and can bring rain, snow or fair weather. Cumulus clouds appear puffy with flat bases, sometimes towering high with fair weather or thunderstorms. Cirrus clouds are the highest and thinnest made of ice crystals, usually indicating fair weather but sometimes foreshadowing storms.
Cloud classification and characteristics
This document discusses cloud classification and describes the different types of clouds. It begins by explaining the Latin prefixes used to classify clouds by altitude, such as "cirro-" for high-level clouds above 20,000 feet composed of ice crystals. Mid-level clouds between 6,500 and 20,000 feet use the prefix "alto-", and can contain water, ice, or a mix. Low clouds below 6,500 feet do not use a prefix. The document then describes the main types of high, mid, and low clouds such as cirrus, altostratus, stratocumulus, and cumulonimbus clouds. It explains the characteristic appearances and formations of each cloud type.
Ppp on clouds and their classification
1) The document discusses different types of clouds based on their composition, height, and shape. Clouds are classified into high, middle, and low clouds depending on their altitude in the atmosphere.
2) High clouds like cirrus and cirrostratus contain ice crystals and form above 6km. Middle clouds such as altostratus and altocumulus contain water droplets and ice crystals. Low clouds like stratus and cumulus contain mostly water droplets.
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Types of Clouds
The document discusses different types of clouds and weather phenomena. It defines various clouds like stratus, cirrus, cumulus, and nimbostratus clouds. It also explains terms like alto, fog, hail, sleet, nucleus, overcast, clear, scattered clouds, and partly cloudy. It provides brief descriptions of the characteristics and formations of these clouds and weather conditions.
Clouds
Clouds are made of water droplets and fog is made of clouds close to the ground. There are different types of clouds including cirrus, nimbus, stratus and cumulus clouds. Precipitation falls from clouds in the sky.
Types of Clouds and Classification
This Presentation all about Clouds and its Classification..
All Pictures and Photographs are Captured In Naturally at Ampara - Sri Lanka...
Identifying types of clouds
This document provides information about the different types of clouds for middle school students. It describes the key characteristics of 12 common clouds: cumulus, cumulonimbus, stratus, stratocumulus, altocumulus, altostratus, nimbostratus, cirrus, cirrocumulus, and cirrostratus. For each cloud type, it discusses their appearance, the atmospheric conditions needed for formation, and some basic facts. The document also includes learning activities like a video, worksheet, and quiz to help students learn to identify and understand the different cloud types.
Clouds lesson powerpoint
This document discusses different types of clouds and how they form. It begins by describing high clouds like cirrus and contrails, then mid-level clouds such as cumulus and cumulonimbus. It explains that cumulonimbus clouds form on hot days and can produce hail. Lower level clouds like stratus and altocumulus are also mentioned. The document concludes by explaining the water cycle and how clouds transport water from one place to another through evaporation and condensation.
Kinds of Clouds
Clouds
What are clouds?
A cloud is a large collection of very tiny droplets of water or ice crystals. The droplets are so small and light that they can float in the air.
Why do clouds float?
A cloud is made up of liquid water droplets. A cloud forms when air is heated by the sun. As it rises, it slowly cools it reaches the saturation point and water condenses, forming a cloud. As long as the cloud and the air that its made of is warmer than the outside air around it, it floats!
There are 3 main types of clouds:
Cirrus or thin feathery clouds
Stratus or layered clouds
Cumulus or fluffy clouds
Cirrus Clouds
Are the most common of the
high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours.
Stratus Clouds
are uniform grayish clouds that often cover the entire sky. They resemble fog that doesn't reach the ground. Light mist or drizzle sometimes falls out of these clouds.
Cumulus Clouds
are white, puffy clouds that look like pieces of floating cotton. Cumulus clouds are often called "fair-weather clouds". The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.
The Importance of Clouds
Clouds help regulate Earth's energy balance by reflecting and scattering solar radiation and by absorbing Earth's infrared energy.
Clouds are required for precipitation to occur and, hence are an essential part of the hydrologic cycle.
Clouds indicate what type of atmospheric processes are occurring (e.g., cumulus clouds indicate surface heating and atmospheric turbulence).
Clouds help redistribute extra heat from the equator toward the poles.
References
https://www.google.com/search?q=clouds&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwixqOqjlu3NAhVHNpQKHbtGCE0Q_AUIBigB#imgrc=_
https://www.google.com/search?biw=1366&bih=624&tbm=isch&q=clouds+clipart&sa=X&ved=0ahUKEwir8paml-3NAhXGkJQKHSrFAPUQhyYIHQ&dpr=1#imgrc=WZWIVB52x_MJRM%3A
https://en.wikipedia.org/wiki/List_of_cloud_types
http://www.weatherwizkids.com/weather-clouds.htm
1 rainclouds
Warm air rises due to convection, cooling and condensing into water droplets that form clouds. Moist air forced to rise over hills and mountains also cools and condenses, forming relief rainfall. Frontal rainfall occurs when warm and cold air masses meet, with the warm air forced over cold air cooling and condensing. The main types of clouds are cirrus (high altitude wispy clouds), stratus (middle/low layered clouds), and cumulus (puffy clouds often leading to rain).
Depressions lrg
Depressions, also known as lows, play an important role in weather systems. They form along polar fronts where cold air meets warm air, bringing rain and strong winds. Depressions follow a life cycle of about 2-5 days as they develop from small waves in polar fronts into mature low pressure systems with cold fronts catching up to warm fronts. Fully developed depressions have a counterclockwise circulation in the Northern Hemisphere due to the Coriolis effect. They can range in size from 150km to 3000km and travel up to 1000km per day, affecting weather over oceans and western continental landmasses.
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Clouds are formed when warm air rises and cools, causing water vapor to condense into water droplets. Clouds are classified by their height or shape above the earth's surface. Clouds associated with rain or snow have "nimbus" in their name, such as cumulonimbus clouds which form thunderstorms or nimbostratus clouds which bring rain or snow. Precipitation occurs when cloud droplets grow too large and fall from the sky.
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Thunderstorms require three conditions: unstable warm air, moisture, and a lift mechanism. When warm moist air rises, it cools and condenses to form cumulonimbus clouds. Water droplets collide and fall as rain. Thunderstorms can cause flash flooding and hail damage, and lightning occurs when warm and cool air interact within storm clouds or between clouds and the ground, heating the air to over 30,000 degrees Celsius and creating thunder.
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Weather is affected by factors like air pressure, wind, temperature, and moisture in the air. The sun provides energy that evaporates water into the atmosphere, where clouds form and later fall as rain or snow. It also heats the air, affecting local weather conditions. Air temperature influences daily life, as it is a measure of molecular motion - higher temperatures mean molecules move more rapidly, feeling warm, while lower temperatures mean slower motion and feeling cold. The record lowest worldwide temperature was -89.6°C in Antarctica, while the highest recorded anywhere was 162°F in Libya.
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Meteorologists forecast the likelihood of future weather conditions based on observations of the atmosphere and its phenomena related to weather and climate. Today's weather in Pittsburgh will be reported on by meteorologists using their scientific knowledge of the atmosphere to analyze current conditions and predict future weather.
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Meteorologists study weather patterns using instruments to gather data from the atmosphere and Earth's surface, which they use to create weather maps and make forecasts. They record surface data on station models using symbols like isotherms and isobars, which connect equal temperatures and pressures and indicate high and low pressure areas. Meteorologists aim to predict future weather conditions but are not always accurate in their forecasts.
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Cold fronts move northwest to southeast, bringing colder and drier air behind them. Stationary fronts occur when the boundary between air masses stops advancing. Warm fronts move southwest to northeast, making the air warmer and more humid as the front passes through. Occluded fronts involve three different temperature air masses - cold, cool, and warm air.
Period 3 Group 1
Weather refers to the current atmospheric conditions including air pressure, wind, temperature and moisture. The sun provides energy that evaporates water, causing weather phenomena like snow, rain, hurricanes and hail. Atmospheric pressure is measured in hectopascals at sea level using precise instruments, and air moves from high to low pressure areas causing wind. Temperature reflects the energy of atmospheric particle motion, and moisture makes things slightly wet or damp.
period 7 group 2
This document discusses different types of precipitation including rain, snow, sleet, and hail. Rain falls as water droplets, snow is frozen water vapor forming snowflakes, sleet forms when rain passes through freezing air, and hail consists of pellets of ice.
period 7 group 6
A document discusses different types of weather fronts, mentioning warm fronts and cold fronts. It provides a brief overview of warm fronts and cold fronts without going into detail about their characteristics or how they form. The document is high-level and does not delve into explanations about these atmospheric phenomena.
period 3 group#3
Clouds form when warm air rises, expands, and cools, causing water vapor to condense into droplets that make up clouds. Clouds are classified by their shape and height, with some bringing rain or snow while others appear wispy on sunny days.
Period 8 group 4
Thunderstorms are caused by warm, moist air that rises and cools, condensing water vapor into rain droplets or hail. Lightning flashes when different parts of a storm cloud build up opposite electrical charges and current flows between them. Hurricanes are the most powerful storms, forming over warm ocean waters as large, swirling low pressure systems with winds over 119 km/h that can cause high winds, tornadoes, heavy rain, and flooding when making landfall.
Pd.3 Group 3
The document discusses the water cycle, which is also known as the hydrologic cycle. It has no starting or ending point. The cycle includes evaporation where water in bodies of water is heated by the sun and turns to vapor, condensation where water vapor in the air cools and condenses to form clouds, and precipitation where clouds become too full and release water in forms such as rain, snow, hail, and snowflakes. Tables and examples of different types of precipitation are also included.
Graphology
مدخل إلى علم الجرافولوجي من إعداد الخبير الدكتور أبوعمار عبدالجليل الأنصاري
Introduction to Graphology
By: Dr. Abdul Jalil Al Ansari
pd.7 group6
Fronts are boundaries between air masses of different densities, moisture, or temperatures that can cause cloudiness, precipitation, and storms. There are four main types of fronts: cold fronts, warm fronts, occluded fronts, and stationary fronts. An occluded front involves three air masses of different temperatures - cold air, cool air, and warm air between the two. It forms when a cold air mass moves toward cool air. A stationary front occurs when neither warm nor cold air advances, resulting in a stalemate with little movement or change in temperature for days with only altocumulus clouds present.
period 3 group 3
Cirrostratus clouds are very high clouds that can indicate either fair weather or an approaching storm. Altostratus clouds form at middle levels and can let sunlight pass through if not too thick. Fog forms at low levels when air cools to its dew point near the ground.
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period 7 group 5
Station models are symbolic illustrations used by meteorologists to plot multiple weather elements in a small space on weather maps. They allow analysis of patterns in air pressure, temperature, wind, cloud cover, and precipitation. Station models use internationally-accepted coding conventions to represent key weather data like temperature, dew point, wind, and precipitation. Weather maps display analysis of meteorological data to show features like fronts, temperature gradients, wind speed, and pressure patterns.
period 7 group 2
Weather observations can be made by checking a thermometer, looking at cloud cover, and measuring wind speed. Meteorologists study weather data from tools like satellites and radar to create maps and improve forecasting of conditions like tornadoes and snow storms, which helps people prepare for dangerous weather and decide when to evacuate.
period 7 group 1
Humidity refers to the amount of water vapor in the air. The warmer the air temperature, the more water vapor it can hold before reaching saturation. Cooler air temperatures cause water vapor molecules to slow down and condense together, forming liquid water droplets through the process of condensation. Relative humidity measures the current water vapor content compared to the maximum amount possible at a specific temperature before saturation is reached.
period 4 group 1
The document discusses key weather factors such as air temperature, wind, and humidity. It explains that air temperature is a measure of molecular motion, with higher temperatures indicating more rapid movement. It also describes how wind is caused by differences in air pressure from warm and cool air masses, and can be measured with an anemometer. Finally, it defines relative humidity as the amount of water vapor in the air compared to the maximum possible at a given temperature, with dew point referring to the temperature when air reaches saturation.
Pd 3 Group 1
Weather refers to the current atmospheric conditions including air pressure, wind, temperature and moisture. The sun provides energy that evaporates water, causing weather phenomena like snow, rain, hurricanes and hail. Atmospheric pressure is measured in hectopascals at sea level using precise instruments, and air moves from high to low pressure areas causing wind. Temperature reflects the energy of atmospheric particle motion, and moisture makes things slightly wet or damp.
period 3 group 1
The document discusses how temperature affects air molecules and wind. When temperatures are lower, air molecules move more slowly, making it feel cooler. Temperature is a property of matter, as heat flows from hot to cool areas. Wind is caused by differences in air density as warmer, less dense air rises and cooler, denser air sinks, creating air movement in specific directions that can be measured with a wind vane or anemometer.
per 3 group 66
An isotherm is a line on a weather map connecting points of equal temperature, showing temperature patterns. An isobar is an imaginary line connecting places of equal barometric pressure, which can indicate wind speed and pressure in an area. Isotherms and isobars are lines used on weather maps and charts to depict temperature and pressure conditions.
period 3 group 4
Fronts are boundaries between air masses of different densities, moisture, or temperatures. There are four main types of fronts:
Cold fronts occur when cold air cuts under warm air, forming cumulonimbus clouds that can cause thunderstorms or tornadoes. Warm fronts happen as warmer air advances over colder air. Occluded fronts include three air masses where colder air forces warm air upward. Stationary fronts remain stationary, causing light winds and precipitation.
pd 8 group 3
This document discusses 3 different air masses with varying temperatures that interact. A colder air mass forces warmer air upwards, blocking the warm air from reaching the surface. The 3 air masses mentioned are colder air, cool air, and warmer air that interact in some way.
Period 8 Group 1
Relative humidity is a measure of the amount of water vapor in the air compared to the amount needed for saturation at a specific temperature. Dew point is the temperature at which air becomes saturated and condensation forms. Dew point is a better measure of moisture content because relative humidity can decrease as temperature increases even if dew point remains the same. Fog is likely when the air temperature and dew point temperature are the same, as cooling air to the dew point causes saturation because cooler air has less energy to overcome liquid bonds between water molecules.
period 7 group 4
Severe weather watches are issued when conditions are favorable for severe storms like thunderstorms, tornadoes, floods, blizzards, and hurricanes. Warnings are issued when severe weather conditions already exist and immediate action should be taken. During blizzards, stay indoors to avoid severe frostbite as blizzards can be blinding with dangerously low temperatures and high winds.
period 7 group 1
The dew point is the temperature at which air must be cooled for water vapor to condense into liquid water or frost. It can be calculated using a hygrometer and indicates the moisture content of air, with higher dew points corresponding to higher moisture levels. When the dew point drops below freezing, ice will form.
period 7 group 3
There are three main air masses that interact along fronts: cold, cool, and warm air. A stationary front occurs when the boundary between two air masses stops advancing and remains stationary for several days, often depicted on weather maps with alternating red and blue lines. Cold fronts can advance rapidly and often cause thunderstorms as warm air is lifted over colder air, while warm fronts bring gentle slopes and prolonged wet weather as warm air slides over colder air. Occluded fronts are formed when colder air forces warm air upwards, closing off the warm air from the surface. A stationary front results when neither cold nor warm air advances further.
PD 7 Group 2
The document describes 6 different types of clouds:
- Cirrus clouds are high, feathery clouds that indicate fair weather.
- Cumulus clouds are puffy, white clouds that indicate warm, dry weather.
- Stratus clouds are flat, gray clouds that cover the sky and likely bring rain or drizzle.
- Cumulonimbus clouds are tall, vertical clouds that produce thunderstorms.
- Nimbostratus clouds are low, gray clouds that block the sun and bring rain or snow.
- Contrails are high-altitude, white streaks created by jets' exhaust that can indicate upcoming weather changes.
period 7 group 3
The document discusses how air masses and their movement cause changes in weather from morning to night. Air masses are large bodies of air that take on the properties of the surface where they form, such as warm/moist over water and cool/dry over land. Air masses can cover thousands of square miles and their daily movement results in changing weather conditions.
pd7 group#4
Blizzards are winter storms characterized by temperatures of -12 degrees C or below, winds of at least 35 mph, and heavy snowfall that reduces visibility to near zero. They form when cold air and moisture combine with warm rising air, producing snow and strong winds. Blizzards can last over three hours and bring extreme cold, dangerous driving conditions, power outages, and shortages of supplies.
pd7 group #2
The document discusses several key weather factors including air temperature, wind, humidity, and relative humidity. It explains that the sun provides Earth's energy and drives weather patterns by evaporating water into the atmosphere which forms clouds and eventually falls back as rain or snow. Different factors like air temperature, which influences daily activities depending on how rapidly or slowly air molecules move, wind which results from air moving between high and low pressure systems, and various humidity measures are described as influencing weather conditions.
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