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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. - PowerPoint PPT Presentation
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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.
Speed – Clouds can move up to speeds of 30-40 mph.
HOW IS FOG FORMED?
Fog is a cloud that is on the ground.
Fog is a result of warm air meeting cold air.
GROUPS OF CLOUDS
There are three groups of clouds.
High Clouds - Cirrus
Medium Clouds - Alto
Low Clouds - Cumulus
Clouds that grow verticalStratus
Special CloudsFog is a special
cloud.
TYPES OF HIGH-LEVEL CLOUDS
There are three types of high-level clouds:CirrusCirrostratusCirrocumulus
CIRRUS
Cirrus clouds are above 18,000 feet.
They are long and wispy.Usually mean good weather.
What does a cirrus cloud look like?
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.
ALTOSTRATUS
Are colored gray or blue-gray.
Covers the whole sky.
Appear before long periods of rain or snow.
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.
STRATUS CLOUDS
Stratus clouds cover the whole sky.
Looks like fog in the sky.
Brings light rain.
What does a stratus cloud look like?
NIMBOSTRATUS
Are dark gray.
Associated with rain and/or snow.
Produce precipitation light to moderate.
CLOUDS THAT GROW VERTICAL
There are two types of clouds that grow vertical:
Cumulus
Cumulonimbus
Vertical means: (in this case) to grow upward.
CUMULUS CLOUDS
Cumulus clouds are big, white, and puffy.
They grow upward.
What does a cumulus cloud look like?