1. Ch 12 and 13 review game
back

2. What is a hydrometeor? An instrument that measures humidity
back

3. What winds blow between 30 and 60 degrees North and south latitude
What winds blow between 30 and 60 degrees North and south latitude? Prevailing Westerlies
back

4. What would be the most likely air mass from northern Canada
What would be the most likely air mass from northern Canada? Continental Polar or Continental Artic
back

5. What would be the most dominant air mass in the south eastern united states in the summer? Maritime Tropical
back

6. What instrument is used to measure the heights of the bases of clouds
What instrument is used to measure the heights of the bases of clouds? Ceiliometer
back

7. What is the term for the Earth’s rotation causing the winds to curve
What is the term for the Earth’s rotation causing the winds to curve? Coriolis effect
back

8. What forecast method is best for researching past weather events
What forecast method is best for researching past weather events? Analogue
back

9. Name two characteristics of high pressure? Clear skies and cooler air
back

10. What information goes on a station model
What information goes on a station model? Temp, dew point temp, wind direction, wind speed, cloud coverage, bar press, bar trend, visibility, current precipitation
back

11. What does an anemometer measure? Wind speed
back

12. What is the difference between weather and climate
What is the difference between weather and climate? Weather is a measurement of atmospheric conditions that is currently going on and climate is the average over the long term.
back

13. Which front moves the fastest? Cold front
back

14. Which front would create thunderstorms? Cold front
back

15. Which front would create a long lasting drizzle followed by warm weather? Warm front
back

16. Which front would create freezing rain or sleet? Occluded front
back

17. Which front would create a flood due to staying in the same place for a while? Stationary
back

18. What is an air mass? A large volume of air that shares its characteristics with the source region.
back

19. What are the two characteristics of an air mass? Temp and humidity
back

20. What is air mass modification
What is air mass modification? When an air mass changes after it travels over a new region.
back

21. What is the jet stream? A narrow fast moving band of air within the Prevailing westerlies.
back

22. What do we use to measure air pressure? Barometer
back

23. What is the Doppler effect
What is the Doppler effect? As energy is moving towards an obsever, the wavelengths compress, and as the energy moves away from an observer the wavelengths elongate. On radar, air moving towards tower is green and air moving away is red.
back

24. What is a radiosonde? A package of weather equipment used to measure atmospheric conditions that is carried up by a balloon.
back

25. What are two types of thunderstorms. 1
What are two types of thunderstorms? 1. Air mass (mountain and sea breeze) 2. Frontal (cold and sometimes warm)
back

26. What are the three stages of development of a thunderstorm. 1
What are the three stages of development of a thunderstorm? 1. Cumulus Stage: Updrafts transport moisture to upper levels. 2. Mature Stage: Strong updrafts and downdrafts 3. Dissipation Stage: The storm loses energy because there are only downdrafts
back

27. What is a super cell? Extremely powerful storms characterized by intense, rotating updrafts.
back

28. What temperature does lightning heat the air up to? 30,000 degrees C
back

29. Explain how thunder is created
Explain how thunder is created? The heat from lightning causes a rapid expansion of air.
back

30. How many deaths occur each year due to lightning? 90-95
back

31. What is a downburst? Violent downdrafts of air (confused with tornadoes) that can reach up to 160 km/h winds.
back

32. How does hail form? Ice precipitation that forms from updrafts transporting the water to upper layers where it freezes, then falls back down collecting more moisture. If the up drafts are strong enough, then the water covered ice chunks go back up, freeze the new water and fall back down. The more this cycle repeats itself, the larger the hail gets.
back

33. How could you tell how many times hail traveled up and down in the clouds? Count the rings when you cut it in half.
back

34. What happens when the amount of rain fall exceeds the water sheds ability to absorb the water? Flood
back

35. What color can you see in the sky that might warn you of a possible tornado? Green
back

36. What is the name of the tornado scale? Fujita
back

37. What three things is tornado scale based on
What three things is tornado scale based on? Wind speed, width, and damage
back

38. What is the name of the geographical location where most tornadoes in the US occur? Tornado Alley
back

39. What direction do tornadoes generally travel? East by North East
back

40. How high does the Fujita scale go to? F-5
back

41. What is a tropical cyclone. Large rotating low pressure system
What is a tropical cyclone? Large rotating low pressure system. The energy for these storms are provided by the warm ocean water.
back

42. Describe the air flow of a cyclone in the northern hemisphere
Describe the air flow of a cyclone in the northern hemisphere? Counter clock wise, in and up.
back

43. What is the ITCZ? The Inter Tropical Convergence Zone is where air meets in the tropics and creates wet weather. This band shifts seasonally.
back

44. What is the “eye” of the storm
What is the “eye” of the storm? The calm center of the storm where you can see blue skies.
back

45. What makes the “eye” of the storm calm
What makes the “eye” of the storm calm? The air in the center is sinking.
back

46. What is the name of a tropical storm that reaches wind speeds over 74 Km/hr? Hurricane
back

47. What is the name of the hurricane scale? Saffir Simpson Scale
back

48. What is the source of energy for a hurricane? Warm ocean water
back

49. Where do hurricanes that effect the east coast of the US originate from? The west coast of Africa
back

50. What is a storm surge? OCCURS WHEN POWERFUL HURRICANE FORCE WINDS DRIVE A MOUND OF OCEAN WATER TOWARD SHORE, WHERE IT WASHES OVER THE LAND OFTEN CAUSING ENORMOUS DAMAGE
back

51. What is the most dangerous aspect of a hurricane? Flooding
back

52. What happens to a hurricane after it makes land-fall and why
What happens to a hurricane after it makes land-fall and why? It gets weaker because it’s source of energy is the ocean water.
back

53. What is a lack of moisture in a region called? Drought
back

54. What killed a lot of French and Italian seniors over the summer
What killed a lot of French and Italian seniors over the summer? Heat wave
back

55. What is the opposite of a heat wave? Cold Wave (snap)
back

56. What is the wind chill factor
What is the wind chill factor? What the temp feels like due to the wind carrying heat away from our bodies.
back