High clouds

Question 1

1

Answer 1

Cirrus hooks not invading the sky

Question 2

2

Answer 2

Cirrus dense - patches (remains of upper part of CB)

OR in form of small towers

Question 3

3

Answer 3

Cirrus dense - in form of anvil (remains of CB)

Question 4

4

Answer 4

Cirrus dense - hooks invading the sky

Question 5

5

Answer 5

Cirrus bands - invading the sky (veil does not reach 45 above the horizon)
(Cirrostratus)

Question 6

6

Answer 6

Cirrus bands - invading the sky (veil extent 45 above the horizon)
(cirrostratus)

Question 7

7

Answer 7

Cirrostratus veil covering the sky

Question 8

8

Answer 8

Cirrostratus veil not covering the sky and not invading the sky

Question 9

9

Answer 9

Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus, or both, but Cirrocumulus is predominant

Question 10

Cirrus hooks not invading the sky

Answer 10

1

Question 11

Cirrus dense - patches (remains of upper part of CB)

OR in form of small towers

Answer 11

2

Question 12

Cirrus dense - in form of anvil (remains of CB)

Answer 12

3

Question 13

Cirrus dense - hooks invading the sky

Answer 13

4

Question 14

Cirrus bands - invading the sky (veil does not reach 45 above the horizon)
(Cirrostratus)

Answer 14

5

Question 15

Cirrus bands - invading the sky (veil extent 45 above the horizon)
(cirrostratus)

Answer 15

6

Question 16

Cirrostratus veil covering the sky

Answer 16

7

Question 17

Cirrostratus veil not covering the sky and not invading the sky

Answer 17

8

Question 18

Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus, or both, but Cirrocumulus is predominant

Answer 18

9