Ignorant of the weather

Home>>Ignorance of weather

Cloudy

　Although it will be called "cloudy weather" in many cases if there are generally many clouds,If it says strictly, the state of "the percentage of clouds is 90 percent or more" will be pointed out.Furthermore, it is divided into four kinds also in cloudy weather, and is called "thin cloudy weather", "cloudy weather", "this cloudy weather", and "high cloudy weather." First, for clouds being made, the temperature of the ground needs to be high and water needs to evaporate to make. And the temperature of air falls as it goes upwards by an ascending current, and it becomes a crystal of waterdrop or ice, and the form of clouds is done.Therefore, in summer, tropical one, etc., clouds progress easily because the quantity of the evaporating moisture increases.

　Although there is no thing in particular troubled by becoming cloudy weather, when the sunlight of summer is strong, sunlight is carried out, and it avoids, and finds it useful.Since it says that the future weather can otherwise be predicted with clouds, it is very useful when it is going to predict the time when a weather report cannot be seen immediately, and a local weather. As a weather flow, when moisture circulates through the earth, it will be said that that there are no clouds consists of evaporation, without it raining since the turn of rain and snow is followed from clouds.

　Directly, although it is not related to cloudy weather, a "typhoon" is made in a process which resembled how to be able to do clouds.While it is formally called a "tropical cyclone" and clouds progress, it generates because an ascending current becomes strong. Since a typhoon does not develop mostly unless water temperature has 27 degrees or more, it hardly generates in winter.The main developmental time term is from March in December. It being called the peak of generating from July among those in January, and landing at Japan also has much this time.

why Rain cloud is black?

　A color does not exist in clouds from the first. It looks white when sunrays reflect by the waterdrop of clouds.When the rain cloud which exists in the distance is seen, it looks white, but this cloud looks black to those who are just under at this time. This is because sunrays can seldom be reflected but light is interrupted, if there are thick clouds.By it, the clouds which became a shadow look black.

How to call a typhoon for every area is different.

　Although it is called a "typhoon" in Japan, the thing of 64 knots or more of maximum wind speed is called "Typhoon" on the standard in the world.By a country, a name changes, and it is called "hurricane" in northeastern northern Atlantic Ocean and Atlantic Ocean, and the Pacific Ocean Kitanaka part, and is called a "cyclone" in southern southern northern Indian Ocean and Indian Ocean, and Pacific Ocean.

Garbage is required for clouds to be made！？

　In order to make waterdrop, it is required in the air for the small dust which is carrying out diffuse, and dust to serve as a core.That is, even one grain of rain or snow will be said that garbage is contained.Therefore, it says well "the snow must not eat" and "without it drinks rain as it is".