Clouds

1
Clouds

• A cloud is a large collection of tiny drops of
  water
• Three groups of clouds
• Cirrus are high
• Alto are middle
• Stratus are low clouds
•  

2
Cirrus Cloud

• These clouds found above 18,000 feet
• The types are cirrus, cirrostratus, cirrocumulus
• Cirrus clouds are most common of high clouds
• Usually white and predict fair to pleasant
  weather

3
Alto Clouds

• These clouds found 6,500 to 18,000 feet
• The types are altostratus, altocumulus
• Composed of ice crystals and water droplets
• Usually form ahead of rain or snow

4
Stratus Clouds

• These clouds found up to 6,500 feet
• The types are stratus, stratocumulus,
  nimbostratus
• Clouds are uniform grayish
• They resemble fog that does not reach ground
• Light mist or drizzle sometimes falls out of
  these clouds