Pilvikato

Pilvikato is a Finnish term that translates to "cloud roof" or "cloud canopy" and is primarily used in the context of meteorology. It refers to a type of cloud formation that appears as a dense, often dark, layer of clouds covering a large portion of the sky. This type of cloud cover is typically associated with stable atmospheric conditions where air masses are not rising or mixing significantly.

These formations are often a characteristic feature of overcast weather, leading to reduced sunlight and a generally gloomy or dull sky. While the term "pilvikato" itself doesn't specify a particular cloud type, it commonly encompasses stratus or stratocumulus clouds, which are known for their flat, uniform appearance. In some instances, it can also describe nimbostratus clouds, which are associated with continuous precipitation.

The presence of a pilvikato can influence local temperatures, often moderating them by trapping heat or blocking solar radiation. It can also affect visibility and create conditions favorable for fog formation, especially near the ground. Understanding the concept of pilvikato is useful for interpreting weather patterns and forecasting the duration of overcast conditions.