Bora weather situations are frequent and sailors study the mountains as cap clouds indicate an imminent Bora event.
2.
Bura weather situations are frequent and sailors keep an eye on the mountains as cap clouds indicate an eminent Bura event.
3.
After the pannus types, the remaining accessory clouds comprise formations that are associated mainly with upward-growing cumuliform and cumulonimbiform clouds of free convection . " Pileus " is a cap cloud that can form over a cumulonimbus or large cumulus cloud, whereas a " velum " feature is a thin horizontal sheet that sometimes forms like an apron around the middle or in front of the parent cloud.