1 / 20

Clouds

Clouds. 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 when the sun is unable to shine through. What makes clouds move?. WIND On a windy day the clouds will move with the wind.

jory
Télécharger la présentation

Clouds

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Clouds

  2. 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 when the sun is unable to shine through.

  3. What makes clouds move? • WIND • On a windy day the clouds will move with the wind. • Speed – Clouds can move up to speeds of 30-40 mph.

  4. Formation • Clouds form when the air rises and evaporation and transpiration occurs. • As temperatures and air pressure drop, water droplets clump together causing condensation or a cloud. • When the water droplets are too heavy to float in the air they fall to the ground as precipitation.

  5. What is fog? • Fog is a cloud that is on the ground. • Fog is a result of warm air meeting cold air.

  6. Groups of clouds • There are three groups of clouds. • High Clouds - Cirrus • Medium Clouds - Alto • Low Clouds – Stratus • Clouds that grow vertical • Cumulus • Special Clouds • Fog is a special cloud.

  7. Types of High-level Clouds • There are three types of high-level clouds: • Cirrus • Cirrostratus • Cirrocumulus

  8. Cirrus • Cirrus clouds are above 18,000 feet. • They are long and wispy. • Usually mean good weather. • What does a cirrus cloud look like?

  9. Cirrostratus • Thin and sheet like. • Brings bad weather.

  10. Cirrocumulus • Rows of long white puffs. • Look like fish scales. • In tropical regions.

  11. Types of medium-level Clouds • There are two types of medium-level clouds: • Altostratus • Altocumulus • Medium-level clouds are between 6,500 – 18,000 feet in the air.

  12. Altostratus • Are colored gray or blue-gray. • Covers the whole sky. • Appear before long periods of rain or snow.

  13. Altocumulus • Are puffy and gray. • Usually bring thunderstorms.

  14. Types of low-level clouds • There are three types of low-level clouds: • Stratus • Stratocumulus • Nimbostratus • Low-level clouds only go up to 6,500 feet in the air.

  15. Stratus Clouds • Stratus clouds cover the whole sky. • Looks like fog in the sky. • Brings light rain. • What does a stratus cloud look like?

  16. Stratocumulus • Are low, puffy, and gray. • Form in rows. • Can turn into a Nimbostratus cloud.

  17. Nimbostratus • Are dark gray. • Associated with rain and/or snow. • Produce precipitation light to moderate.

  18. Clouds that grow vertical • There are two types of clouds that grow vertical: • Cumulus • Cumulonimbus • Vertical means: (in this case) to grow upward.

  19. Cumulus Clouds • Cumulus clouds are big, white, and puffy. • They grow upward. • What does a cumulus cloud look like?

  20. Cumulonimbus • Are anvil shaped. Winds blow the top of the cloud to make it flat. • Associated with severe weather. • The tip of the cloud points in the direction it is moving.

More Related