ATPL: Clouds, classified as being low level are considered to have bases from
Domanda 87, Meteorology - ATPL - Airline Transport Pilot license
| 1000 to 2000 FT |
| 500 to 1000 FT |
| The surface to 6500 FT |
| 100 to 200 FT |
| 1000 to 2000 FT |
| 500 to 1000 FT |
| The surface to 6500 FT |
| 100 to 200 FT |
