Figure 16.13: A large hail stone, about 6 cm (2.5 inches) in diameter. ( 15 )Review Questions
- What factors need to be included in a thorough weather report?
- If Phoenix, Arizona experiences a cool, wet day in June (when the weather is usually
hot and dry), does that mean the region’s climate is changing? - Look back at the table that shows heat index. Which day would most people find more
pleasant: An 85oF day with 90% humidity or a 90oF day with 40% humidity? - What happens when a batch of air reaches its dew point? At what temperature does
this occur? - What effect do clouds have on weather?
- You are standing in a location which is clear in the morning, but in the afternoon
there are thunderstorms. There is no wind during the day, so the thunderstorms build
directly above you. Describe how this happens. - In what three ways can air rise to create clouds?
- What are the four different cloud groups and how are they classified?
- How does sleet form? How does glaze form?
- What circumstances must be present for enormous balls of hail to grow and then fall
to the ground?
Vocabulary
altocumulus Gray puffy stripes of globular clouds arranged in lines across the sky.
altostratus Thicker clouds than cirrostratus; like a gray veil, may completely hide Sun or
Moon.