Weather

3. mass, large volume of air that has the characteristics of the area over which it forms
4. easterlies, global wind systems that lie between latitudes of 60° N/S and the poles and are characterized by cold air.
6. line on a weather map connecting areas of equal temperature
14. winds, global wind systems that flow between the equator and latitudes of 30° N/S where air sinks, warms, and returns to the equator in a westerly direction.
16. instrument used to measure wind speed
18. westerlies, global wind systems that lie between 30° and 60° latitude north and south of the equator where air moves toward the pole in an easterly direction
19. a weather forecast that compares current weather patterns to patterns that occurred in the past
20. short-term variations in atmospheric phenomena
21. a weather forecast that uses numerical data to predict how atmospheric variables change over time

1. instrument used to measure temperature
2. instrument used to measure air pressure
5. balloon-borne weather instrument whose sensors measure air pressure, humidity, temperature, wind speed, and wind direction in the upper atmosphere
7. region, area over which an air mass forms
8. instrument used to measure humidity
9. model, record of weather data for a specific place at a specific time, using meteorological symbols
10. effect, air moving in the northern hemisphere appears to deflect to the right (and to the left in the southern hemisphere)
11. boundary between two air masses of differing densities
12. line on a weather map connecting areas of equal pressure
13. stream, narrow wind band that occurs above large temperature contrasts and can flow as fast as 185 km/h
15. effect, change in the wave frequency that occurs due to the relative motion of the wave as it moves toward or away from the observer
17. the long-term averages and variations in weather for a particular area