1. Study Notes for 3-2 TEST

2. 1 The type of weather associated with an incoming _____ pressure system would be cloudy, chance of ______. low storms

3. 2 Warm, moist air that moves ________ over a mountain range most likely form _______. upward clouds

4. 3 Precipitation that occurs when rain falls through a layer of freezing air close to ground is known as _______. sleet

5. 4 Winds in a _____ pressure system that form in the Northern Hemisphere appear to rotate ________ clockwise when viewed from space. low counter

6. 5 Weather __________ collect data over a very broad area compared with surface weather instruments. satellites

7. 6 Weather map symbols H and L indicate air _________ centers. pressure

8. 7 Water will change to a ____ if enough energy is _________ by liquid water. gas absorbed

9. 8 Air _______ move in the United States move from _____ to east. masses west

10. 9 Severe thunderstorms form when a _____ air mass comes in contact with warm, ______ air. cold moist

11. 10 ________ radar can provide the location, _____, and motion of precipitation to weather forecasters. Doppler type

12. 11 _______ of a thunderstorm include cumulus, _______ and dissipating. Stages mature

13. 12 Weather centers all over the world _________ the data they collect with other ________. exchange centers

14. 13 Storms along a ______ front produce precipitation over a _____ area, and are sometimes violent. warm large

15. 14 The type of air mass that forms in an area depends on the ________ where it forms. location

16. 15 An instrument that measures relative humidity with two identical thermometers is a _________________. psychrometer.

17. 16 Meteorologists use _________ models to help them make forecasts from data they have input into computers. computer

18. 17 If the barometer reading _____, a good hypothesis would be that a ______ is coming. falls storm

19. 18 An instrument used to measure air pressure is a __________. barometer

20. 19 A warm front occurs when warm air moves into ____ air. cold

21. 20 If you collect data for air temperature, humidity and air ________, you are measuring ________. pressure weather

22. 21 __________ begin when warm, moist air rises and the moisture condenses, releasing energy in the form of ______ heat. Hurricanes latent

23. 22 When an air mass moves rapidly ________ temperatures fall and water ______ condenses. upward vapor

24. 23 Clouds that often bring thunderstorms are _____________. cumulonimbus

25. 24 Doppler ______ can save lives by warning people of an approaching ______. radar storm

26. 25 States in the mid-central United States are more likely to have _________ because the cold dry air from Canada contacts warm, _____ air from the Gulf of Mexico. tornados moist

27. 26 A ________ will follow a __________ path if it touches down. tornadohaphazard

28. 27 A cold front forms when a cold air mass overtakes a ______ air mass and lifts the warm air mass off the _______. warm ground

29. 28 Scientists use _______ and symbols to convey information on a weather _____. colors map

30. 29 A cloud whose name has the prefix ______- or the suffix –nimbus is ____-producing. nimbo rain

31. 30 Doppler radar measures ___________ by bouncing radio _______ off rain or snow. precipitation waves

32. 31 Oceans have slow temperature ________ which stabilize the temperatures of air masses that form over them and cause towns near an ocean often to be ________ in winter and cooler in summer than towns at the same latitude but located ______. changes warmer inland

33. 32 Triangular shaped symbols colored _____ on a weather map point the direction a _____ air mass is moving. blue cold

34. 33 Hurricanes develop over _______ because oceans add water ______ and energy to the air mass. oceans vapor

35. 34 When ___ pressure goes up temperature will usually go ______. air down

36. 35 A low pressure system forms when warm air _____. rises

37. 36 An ___________ forms as the air sinks and flows outward from a center of ____ pressure which brings dry weather. anticyclone high

38. The End