Met - Mountain Waves

Question 1

How should you approach a mountain range if you suspect mountain waves may be present …..

Answer 1

Approach from an oblique angle that allows for a less than 180⁰ escape route

Question 2

What type of clouds indicate mountain waves are present …..

Answer 2

lenticular, and roll clouds

Question 3

The crests of the mountain waves can be ….. ….. than the mountain that triggered them

Answer 3

much heigher

Question 4

What do the crests and troughs of the mountain waves do in relation to the mountain range …..

Answer 4

they remain stationary

Question 5

3 things are required for mountain waves to form …..

Answer 5

1. Wind direction - must be at almost right angles
2. Wind speed - greater than 25kts
3. Atmospheric stability - there must be a stable layer of air sandwiched between 2 unstable layers

Question 6

The nature of mountain waves is determined by 3 things …..

Answer 6

1. The height of the mountains
2. The shape of the mountains
3. The degree of stability