Question Bank

1. The wind blows anticlockwise around a low in S-hemisphere

2. Gradient wind is ____ of the geostrophic wind in an anticyclone

3. Sudden change in wind speed from 10 kt to 30 kt for 2 -3 minutes

4. The thermal wind is

5. In S hemisphere if an observer faces wind, low will be to his ____

6. If the S is warmer than the N, level by level, from surface up to higher levels, then the ____ wind will strengthen with height with no change in direction in N hemisphere

7. Due to friction, from day to night for an isobaric pattern (in N hemisphere) the surface wind backs and weakens

8. The wind blows clockwise around a low in N-hemisphere

9. Upper level wind is 24025 kt, lower level wind is 06015 kt, the thermal wind is?

10. Cyclostrophic wind gives a good approximation of the 2000' wind in an intense tropical storm

11. Sudden change in wind speed form 10kt to 30kt an then 15 kt are

12. A change from 270° to 250° is

13. Gale is

14. Friction causes winds to flow cross isobaric by _____ over land and ____ over sea

15. Sea breeze is stronger than land breeze

16. Geostrophic wind is due to the balance between the forces

17. The inertial flow is

18. If an aircraft in N-hemisphere flies from H to L it will experience

19. In N-Hemisphere if you experience Port drift, altimeter will read

20. Local Winds follow Buys Ballots law

21. With the onset of sea breeze there is a _____ in temperature and ____ in RH

22. In N hemisphere due to rotation of earth winds are deflected to

23. The wind blows clockwise around a low in S-hemisphere

24. Coriolis force acts perpendicular to the _____ of wind direction in N hemisphere

25.

The resultant wind that blows under the influence of pressure gradient force, geostrophic force and cyclostrophic force is called

26. In N hemisphere thermal wind is parallel to ____ with low value to left

27. Anabatic wind is stronger than katabatic

28. Katabatic wind is down slope cold wind due to nocturnal cooling

29. Lines of constant wind speed drawn on weather charts are called

30. Anabatic wind occur due to downward movement of air along valley

31. Sea breeze sets in by ______ and dies off at _____

32. Coriolis force is strongest at

33. The wind which spirals inward counter-clockwise in the N Hemisphere are associated with

34. Katabatic wind occur due to sinking of cold air down the hill slope

35. Fohn winds are ____ on the Leeward side of a mountain

36. A significant wind shear is generally associated with TS or line squall

37. Squall are distinguished from gusts by

38. A change in wind direction from 310° to 020° is

39. The wind blows anticlockwise around a low in N-hemisphere

40. Geostrophic rule breaks down at

41. Rotor clouds have extremely turbulent flying conditions

42. On a weather map if isobars are closely packed, the surface winds are likely to be

43. Lower level wind 05010 kt, upper level wind 23005 kt, what is the thermal wind

44. The wind sliding down a hill during night is called ______ wind

45. Anabatic wind occurs