| Convection generally produces cumuliform clouds but may produce stratocumulus and altocumulus. |
| It is caused by light shining through thin altocumulus, which causes the light to bend as it passes through the water droplets within the cloud. |
| There would be isolated altocumulus castellanus cloud with the tops at 16 000 feet, giving 2 to 5 sm visibility in light rain showers and mist. |
| The cirrocumulus formation is basically the same cloud as the stratocumulus and altocumulus but at higher altitude. |
| Cirrocumulus has no shading, and because it is so much higher, the cloudlets of cirrocumulus are much smaller than those of altocumulus. |
| The clouds and weather forecast within 60 nm of the warm front included altocumulus clouds as well as mixed conditions of visibilities as low as? mile in light snow, light ice pellets and light freezing rain. |
