Across
- 1. created when a warm air mass runs into a cold air mass
- 4. huge release of electricity
- 5. amount of water vapor in the air
- 9. known for heavy rain and lightning
- 13. boundary between air masses
- 14. studies the atmosphere
- 15. occurs when a cold air mass runs into a warm air mass
- 17. huge storm with high winds and rain
- 18. state of the atmosphere
Down
- 2. funnel-shaped cloud of whirling winds
- 3. measures wind speed
- 6. created when a warm air mass gets stuck between two cold air masses
- 7. measures air pressure
- 8. episode of severe weather
- 10. high water located in low pressure eye of hurricane
- 11. when two air masses stop when they meet
- 12. severe snow storm
- 16. occurs when air explodes