Adverse Weather OM A 8.25.5

Question 1

When should the decision to avoid a large storm be made by?

Answer 1

To avoid a large storm, the flight crew should make decisions while still 40 nm from

Question 2

When avoiding a storm which way should the deviation be made?

Answer 2

Deviate upwind instead of downwind of a cell (less probability of turbulence or hail)

Question 3

What distance should yellow, red, or magenta weather radar returns be avoided by?

Answer 3

Avoid all yellow, red, or magenta weather radar returns by at least 20 nm

Question 4

For a cells taller than 28,000 ft what distance should all green, yellow, red, and magenta weather radar returns be avoided by?

Answer 4

Avoid all green, yellow, red, and magenta weather radar returns of cells taller than 28,000 ft by at least 20 nm

Question 5

What extra precautions should be taken for cells exceeding 35,000 ft?

Answer 5

Cells exceeding 35,000 ft should be considered extremely hazardous and further separation (in addition to the 20 nm) should be used

Question 6

What precautions should be taken if the top of cell is at or above 25,000 ft?

Answer 6

If the top of cell is at or above 25,000 ft, do not overfly it to minimise the possibility of encountering turbulence;

Question 7

What is the minimum height to fly over a cell?

Answer 7

Do not attempt to penetrate a cell or clear its top by less than 5000 ft vertically, otherwise the aircraft may encounter severe turbulence;

Question 8

Should you fly under a thunderstorm?

Answer 8

Avoid flying under a thunderstorm because of possible windshear, microbursts, severe turbulence, or hail