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Published byDiane Stevenson
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A Quick Introduction to Clouds Lis Cohen
Cloud Naming Cloud naming is based on four cloud characteristics and three cloud levels There are about 30 distinct cloud types Professionals may use 10, a casual observer 3 or 4
Cloud Characteristics Cirrus – Fiber or Hair Cumulus –Heaped or Piled
Cloud Characteristics Stratus – Sheet or Layer Nimbus – Rain Making
Cloud Levels High Cumulus –Size of top of thumb at arms length Low Cumulus –Size of fist at arms length Photo: WBZ-Mos
Cloud Levels High Stratus –Sun and Moon easily seen Low Stratus –Sun and Moon difficult to see
Cloud Levels High Clouds Generally form above 20,000 feet Usually appear white, except for sunrise/set Usually thin and composed almost exclusively of ice crystals
Cloud Levels High Clouds Indicative of upper level moisture (storms possible in 6-24 hours).
Cloud Levels High Clouds CIRRUS CIRROSTRATUS CIRROCUMULUS Photo: WBZ-Mos
Cloud Levels Middle Clouds Cloud bases are located between 6,500-23,000 feet in the mid-latitudes Composed of water droplets and when temperatures are low enough, some ice crystals
Cloud Levels Middle Clouds ALTOSTRATUS ALTOCUMULUS
Possible marker of PM t-storms when seen in the AM with greater vertical development. (Clouds form in unstable air with stable air above them.) Cloud Levels Middle Clouds
Cloud Levels Low Clouds Cloud base lies below 6,500 feet Almost always composed of water droplets, but in cold weather, may contain ice particles and snow
Cloud Levels Low Clouds Stratus Stratocumulus Nimbostratus Museum of Science/WBZ conference
Cloud Levels Low Clouds Can form drizzle like precipitation Often stable layer is found above these clouds
Cloud Levels Large Vertical Development CUMULUS CUMULONIMBUS
Cumulus Humulis Cumulus Fractus Cloud Levels Large Vertical Development Photographer: Unknown
Cumulus Congestus Cumulonimbus Incus Cloud Levels Large Vertical Development Photographer: Unknown
Occurs with an unstable atmosphere Often indicative of thunderstorms and heavy rain Cloud Levels Large Vertical Development
Unique Clouds Lenticular Clouds Pileus Clouds Photographer: Unknown Photographer: Jay Shafer
Unique Clouds Mammatus Clouds Condensation Trail or Contrail Photographer: Unknown
Common Cloud Types
Description of Sky Conditions SUNNY OR CLEAR less than 1/10 sky covered by clouds PARTLY CLOUDY/ PARTLY SUNNY 1/10 to 5/10 of sky is covered by clouds
Description of Sky Conditions MOSTLY CLOUDY (MOSTLY SUNNY) 6/10 to 9/10 of sky is covered by clouds (sun) OVERCAST more than 9/10 of the sky is covered in clouds Undercast
Hear a Music Clip. Cloud Classification 1. Based on Altitude 2.Appearance from the ground LATIN ROOTS Cirrus - Curl of hair -Wispy fibers or Feathery.
Cirrus Clouds thin and wispy The most common form of high-level clouds are thin and often wispy cirrus clouds. Typically found at heights greater than.
Cloud Terminology Cumulus = heap Stratus = layer Cirrus = curl of hair Nimbus = rain Prefixes Cirr = high; Alto = mid-level.
Moisture in the Air MOISTURE IN THE AIR. Weather Present state of the atmosphere and current conditions.
Clouds and Weather Predictions 5 th Grade Science.
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.
Lecture 5 Precipitation (2) Clouds Weather Systems Global Precipitation Patterns Regional Precipitation Patterns.
Clouds Cloud Formation Condensation - water vapor gathers and forms water droplets or ice crystals (deposition) 1) Warm air rises taking along vapor,
1.What is a cloud? 2.How do clouds form? 3.How are clouds named? 4.What is a cumulus cloud? 5.What is a stratus cloud? 6.What is a cirrus cloud? 7.What.
1.) Clouds are made up of tiny water droplets or: a.) snow droplets b.) ice crystals c.) sleet particles.
Cirrus Clouds : feathery, light, usually composed of Ice crystals High altitude where it is usually very dry and cold.
Clouds Predict the Weather by learning Cloud Types.
Types of Clouds What’s the Weather?. Cirrus, Cirrocumulus and Cirrostratus (high ,000 m) thin and often wispy composed of ice crystals that.
Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold.
Clouds are made of tiny bits of water and ice that would be invisible if they were viewed individually (they are 100 times smaller than a raindrop)
A cloud is a visible aggregate of tiny water droplets and/or ice crystals suspended in the atmosphere They can exist in a variety of shapes and sizes.
Warm air is forced upwards Meets up with cold air Then both cool and condense around dust particles.
CLOUD FORMATION There are 3 things required for clouds to form: 1.Water vapour 2.Change in temperature or pressure 3.Condensation nuclei (dust, smoke,
Clouds!!! Rachel and Mariah. How do clouds form Clouds form when warm air raises and cools. The left over water vapor then has no where to go so it becomes.
Clouds and Weather Prediction. Learner Expectations Grade 5 –Atmosphere: Conditions/Data/Predict The learner will be able to predict weather conditions.
Clouds and Precipitation. What is a Cloud? Very small water droplets or ice particles that condense around particles of dust in the atmosphere- making.
Cloud Classification. Clouds are classified based on altitude and shape.
CLOUDS. A cloud is a visible mass of droplets of water or frozen crystals suspended in the atmosphere above the surface of the EarthdropletscrystalsatmosphereEarth.
CLOUDS. 3 BASIC TYPES Stratus- Cumulus- Cirrus-
Science 10: Mr. Jean January 12 th, The plan: Video clip of the day Atmospheric Layers Aurora Clouds BBC – Deep Freeze.
Weather Cloud Types A cloud is ice crystals and or tiny water droplets formed by cooling air to its ____ _________. Dew point is the temperature where.
Clouds General Information Cloud types (Low, Medium & High) Special Clouds.
Water, The Atmosphere, and You. The Changing Forms of Water Water is the only substance on earth to naturally exist as a solid, liquid, and gas –Evaporation.
CLOUDS Name Block Date Cloud – A collection of millions of tiny water droplets or ice crystals Humidity – The amount of water vapor or moisture in the.
Clouds! How do they form?. Cirrus Clouds The most common of the high clouds They are composed of ice and are thin, wispy clouds blown in high winds into.
Mr. Hartwell -- F-M Meteorology Cloud Types & Properties.
Your Cloud Encyclopedia 16-2 Notes on Clouds Cirrus Clouds High, ice-crystal clouds Look like wispy curls of hair Look feathery Often the first.
CLOUDS. * Form of condensation * Visible chunks of small water droplets or ice crystals * Good indicators of what’s going on in the atmosphere.
Check your cloud chart to be sure you have the information correct: Cirrus: description—thin, wispy (curly) shaped clouds high altitudes; indicates.
The weather changes from day to day. Some days it is cloudy and rainy. Other days it is sunny and warm. People can predict weather by looking at the clouds.
Cloud Types Chapter 11, Section 3. Clouds are classified according to their height above and appearance (texture) from the ground. The following terms.
Cloud Classification system Use the arrow right to move the slide to the next page. Use the arrow to the left to move the side to the previous page.
C LOUDS. WHAT IS A CLOUD? A collection of water droplets Why White? -They are white, because they reflect the color of the sun. Why Gray? – They are gray.
Clouds Water from the earth’s surface moves into the air by EVAPORATION and becomes WATER VAPOR. Clouds are formed when rising air is cooled and the water.
Clouds and Weather Prediction. In this activity you will: Learn about the types of clouds, how they are formed, and the weather each might predict. Illustrate.
Essential Question How do meteorologists predict the weather? ○ How Do Clouds Form? ○ What are Three Main Types of Clouds?
Mr. Deakin - CLOUDS terms, naming, and types.
Earth Science Hook. Clouds How do Clouds Form? In order for clouds to form you need the following: – Low Pressure – Relatively “humid” air – Condensation.
Dew and Frost Today –Dew –Frost –Clouds. Condensation nucleus demonstration.
S4E3 Students will differentiate between the states of water and how they relate to the water cycle and weather. e. Investigate different forms of precipitation.
Clouds Second Grade Science By: Christy Gibson. Clouds A cloud is composed of tiny water droplets (or ice crystals) that are suspended in the air. If.
Think about it In your own words, describe what is a cloud and how does it form?
CLOUD TYPES CAN YOU IDENTIFY THE FOLLOWING CLOUDS?
Clouds. What is a cloud? Warm air contains water vapor The air cools as it rises The water condenses around a solid object, such as dust or smoke, and.
Welcome To Class Why is a person working out and sweats a lot more likely to get heat stroke when the humidity is high?
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