Low stratus and stratocumulus commonly form underneath the main precipitating clouds. Stratus stratocumulomutatus clouds occur when stratocumulus opacus patches fuse to create a stratiform layer. It is a cloud species attached to the cloud genera cirrus, cirrocumulus, altocumulus and stratocumulus. The cumulus turn into stratocumulus or altocumulus depending on their height. Any showers from stratocumulus castellanus are not usually as heavy as those from cumulus congestus. Drizzle is normally produced by low stratiform clouds and stratocumulus clouds. They are sometimes seen with cirrus, cirrocumulus, altocumulus, and stratocumulus. Vast areas of subtropical and polar oceans are covered with massive sheets of stratocumulus. This model still has problems with regions of marine stratocumulus clouds. These marine stratocumulus clouds are thus typically proposed as the suited target. The low-level clouds at around were described as stratocumulus with concentric horizontal rolls. They are distinct from other stratocumulus by puffy tower-like formations atop the cloud layer. A stratocumulus cloud is another type of stratocumuliform cloud. A stratocumulus cloud is another type of a cumuliform or stratiform cloud. By 17&colon;00 the airfield was covered in 5/10ths stratocumulus at 5,000 feet.