Presentation on theme: "Clouds and Weather Prediction. Learner Expectations Grade 5 –Atmosphere: Conditions/Data/Predict The learner will be able to predict weather conditions."— Presentation transcript:
Clouds and Weather Prediction
Learner Expectations Grade 5 –Atmosphere: Conditions/Data/Predict The learner will be able to predict weather conditions based on an analysis of atmospheric data.
In this activity you will: Learn about the types of clouds and the weather each might predict. Write a paragraph about a cloud type and its weather.
What are clouds? A cloud is made up of tiny water droplets and/or ice crystals, a snowflake is a collection of many ice crystals, and rain is just liquid water.
Cloud Types Names of specific types of clouds are created by combining the name of the cloud's shape with its height.
Cloud Types The presence of clouds in the sky is one type of signal to meteorologists that there will be changes in the weather. Predicting the weather requires the understanding of the different types of clouds.
Cloud Formation Clouds form when solar heating of the earths surface warms the air near the ground. This air begins to rise and it expands and cools. Water vapor then condenses on small dust particles suspended in the air and these combine to form clouds.
Cloud Formation The type of cloud created is determined by how fast the air rises.
Clouds There are 3 main types of clouds: Cumulus or fluffy clouds form when air is forced up rapidly and therefore rises higher. Cumulus
Clouds Stratus clouds are layered clouds that form when air that is forced up slowly. Stratus
Clouds Cirrus clouds are thin feathery clouds. Cirrus
There are three categories of cloud heights: High Clouds = CirrusHigh Clouds = Cirrus Middle Clouds = Alto Low Clouds = Stratus
High Clouds = Cirrus Types: Cirrus Cirrostratus Cirrocumulus
High Clouds: Cirrus Cirrus clouds are made of ice crystals and are high and wispy. They can be divided into cirrostratus and cirrocumulus clouds.
High Clouds: Cirrus
High Clouds:Cirrus High Clouds: Cirrus Cirrus generally occur in fair weather and point in the direction of air movement at their elevation.
Cirrus Cirrus clouds are usually the first sign of an approaching storm.
Middle Clouds: Alto Altostratus Altocumulus
Middle Clouds:Altocumulus Middle Clouds: Altocumulus Altocumulus clouds usually form from the gradual lifting of air in advance of a cold front.
Middle Clouds: Altocumulus The presence of altocumulus clouds on a warm and humid summer morning is commonly followed by thunderstorms later in the day.