Although it is fine weather in the stage of seeing cirrus, the weather changes in several days.

　If this cloud comes out, it is said that it becomes the sign that the weather worsens.

　With the symbolic clouds of autumn, when a typhoon and traveling Low approach mostly, it sees mostly.

　Although the fine weather of autumn sees, if it becomes thick gradually, the weather will change.

　It will become the sign of raining if the altostratus has come out.

　It is the feature that a layer is thin and it is rare to be accompanied by rain.

　Although rain may be brought about, it is fine rain of a grain like drizzle or snow grain.

　With the gray clouds made in the low place of empty, rain and snow are showered on for a long time gently.

　It is fine when a swallow flies highly. If the weather worsens, an insect will fly in a low place. Since the swallow is using the insect as food, when flying in the neighborhood of the ground, the weather worsens.

　Since it becomes impossible to take food when it returns early and rains tomorrow, since food can be taken again if it will be fine tomorrow, it is said that it is flying till late in the evening.

　Humidity will become high if rain cloud approaches.If humidity becomes high, with humidity, the mustache of a cat sensitive to humidity will become heavy, and will hang down. It is worrisome and a cat washes a face by a forelimb.

　Since the atmosphere is stable, because there is nothing in which smoke is made to trail.

　A morning rainbow is the proof which is visible to west empty and has rain cloud west. Soon, this cloud moves east and showers on rain. A rainbow looks opposite to east empty and west is fine.

　It is windy when a star winks. Under a strong wind, since fluctuation of the atmosphere becomes strong, a star winks and it is visible.