Chapter 5 Lessons 5 & 6 (8)

3. Within a thunderhead there are strong downward winds called____.
4. This is a dome of water that sweeps across coastal areas.
6. Taken away from its source of energy, this can still produce heavy rain for days.
9. A cold front colliding with a warm air mass pushes warm, moist air upward forming these.
12. Within a thunderhead air can move both _____ and _______.
13. This forms as a result of lightning hitting sand.
14. On a weather map high and low pressure areas, temperatures and fronts are depicted by these.
17. Hurricanes that form in the Atlantic are steered by these.
19. These are lines on which all points have the same pressure.
20. These involve sudden changes in air pressure and rapid air movements.

1. When do most cumulonimbus clouds form?
2. As cold, dry air moves over warm water in the northern mid-west, it gathers moisture which causes __________________ once the air mass reaches land.
5. In what state did a major blizzard force people to abandon their cars due to snow depth on the roads?
7. This is where typhoons form.
8. Dallas opened up shelters here for people fleeing Katrina.
10. This is formed from electrical charges built up in clouds.
11. Over warm ocean water, a low pressure zone can turn into this.
13. This is sudden and violent. Typically forms after a storm.
15. A funnel shaped cloud with extremely high winds that forms over water.
16. This is a great conductor of electricity.
17. The arrival of the _____ causes a calm within a storm.
18. These are lines on which all points have the same temperature.
21. All year round most precipitation forms as __________.