| Names and Classification of clouds! |  | The clouds we see from the vessel related in time and warn us about the evolution of. High clouds warn us of a change in the weather after several hours, while the middle or low clouds for weather changes in minutes or in 2 to 3 hours.
Classification criteria:
1. The rate at which those clouds
2. The form
3. The internal structure
4. How formed
5. Transparency. | | High clouds (CH) | | Cirrus (Ci) | |  | Usually formed at altitudes above 30,000 feet. When resemble agkystra and have radial extensions are harbingers of bad weather and state otiplisiazei warm front of a barometric low. Sometimes the cirrus in the form of loose white area, indicating the presence of Jet stream in the upper atmosphere. | Cirrostratus (Cs)
|  | When you appear as a layer that gradually unfolds and fills the sky, that means approaching warm front with a low barometric subsequent rains. If the display does not show an increase, it means that the rains go by far.
| Cirrocumulus (Cc)
|  | It is a layer of fine white clouds memorfi grains' the wrinkles. Clouds are rare on the Mediterranean latitudes and usually indicates the presence of the approaching storm.
| Middle Clouds (CM)
| Altocumulus (Ac)
|  | They appear very often and usually not related to bad weather. When shown as a parallel roller warn that precede a warm front, with subsequent rains or storms. When displayed in the form of small towers that grow upwards, usually preceded by heavy rains and storms. | Altostratus (As)
|  | It clouds give rain or snow. As long as the layer continuously grows and thickens, proeidopoiioun be close with consequent low barometric rain or snow, limited visibility, increasing the wind and high waves. Usually followed and Cumulonimbus. | Nimbostratus
| |  | Because the density of completely hiding the sun. Usually coexist and other irregular individual clouds below them. Not often appear in the latitudes of Meogeiou and give continuous rain and snow during winter. | Low Clowds (CL)
| Cumulus (Cu)
| |  | They appear very often and usually cover 25% of the sky. General weather is cloudy and a little cloudy weather features. But when we have a great vertical development, with several bulky appearance create showers of rain. | Cumulonimbus (Cb)
|  | They bring storms and more dangerous. When a vessel is found under a cloud Cumulonimbus, the sky looks very dark, heavy rain occurs or storm. The lightning and thunder created within these clouds.
The surface winds are strong to gale force, usually 25 to 40 knots (Beaufort 6 to 8) around the edges of the cloud. | Stratus (St)
| |  | The Stratus does not have great height or thickness, do not give rain. |
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2nd Issue 